AR0230CS 1/2.7inch 2.1 Mp/Full HD Digital Image Sensor GENERAL DESCRIPTION ON Semiconductor's AR0230CS is a 1/2.7-inch CMOS digital image sensor with an active-pixel array of 1928Hx1088V. It captures images in either linear or high dynamic range modes, with a rolling-shutter readout. It includes sophisticated camera functions such as in-pixel binning, windowing and both video and single frame modes. It is designed for both low light and high dynamic range scene performance. It is programmable through a simple two-wire serial interface. The AR0230CS produces extraordinarily clear, sharp digital pictures, and its ability to capture both continuous video and single frames makes it the perfect choice for a wide range of applications, including surveillance and HD video. Table 1. KEY PERFORMANCE PARAMETERS Parameter 1/2.7-inch (6.6 mm) Active Pixels 1928(H) x 1088(V) (16:9 mode) Pixel Size 3.0 m x 3.0 m Color Filter Array RGB Bayer Shutter Type Electronic rolling shutter and GRR Input Clock Range 6 - 48 MHz Output Clock Maximum 148.5 Mp/s (4-lane HiSPi) 74.25 Mp/s (Parallel) Output Frame Rate Serial HiSPi 10-, 12-, 14-, 16-, or 20-bit Parallel 10-, 12-bit 1080p 60 fps Responsivity 4.0 V/lux-sec SNRMAX 41 dB Max Dynamic Range Up to 96 dB Supply Voltage IBGA80 10 y 10 CASE 503AN ORDERING INFORMATION See detailed ordering and shipping information on page 2 of this data sheet. Features * Superior low-light performance * Latest 3.0 m pixel with ON Semiconductor Typical Value Optical Format www.onsemi.com * * * * * * * * * * * I/O 1.8 or 2.8 V Digital 1.8 V Analog 2.8 V HiSPi 0.3 V - 0.6 V (SLVS), 1.7 V - 1.9 V (HiVcm) Power Consumption (typical) 386 mW (Linear, 1080p30, 25C, parallel output) 558 mW (HDR, 1080p30, 25C, parallel output) Operating Temperature -30C to +85C ambient Package Options 10x10 mm 80-pin iBGA * * * DR-PixTM technology with Dual Conversion Gain Full HD support at up to 1080P 60 fps for superior video performance Linear or high dynamic range capture Optional adaptive local tone mapping (ALTM) Pixel or Line interleaved T1/T2 output Support for external mechanical shutter On-chip phase-locked loop (PLL) oscillator Integrated position-based color and lens shading correction Slave mode for precise frame-rate control Stereo/3D camera support Statistics engine Data interfaces: four-lane serial high-speed pixel interface (HiSPi) differential signaling (SLVS and HiVCM), or parallel Auto black level calibration High-speed configurable context switching Temperature sensor Applications * Video surveillance * 1080p60 (Surveillance) video applications * High dynamic range imaging (c) Semiconductor Components Industries, LLC, 2006 August, 2017 - Rev.11 1 Publication Order Number: AR0230CS/D AR0230CS ORDERING INFORMATION Table 2. AVAILABLE PART NUMBERS Part Number Product Description Orderable Product Attribute Description AR0230CSSC00SUEA0-DRBR 2 Mp 1/3" CIS RGB, 0deg CRA, iBGA Package Drypack, Anti-Reflective Glass AR0230CSSC00SUEAH3-GEVB RGB, 0deg CRA, Headboard Headboard AR0230CSSC12SUEA0-DR 2 Mp 1/3" CIS RGB, 12deg CRA, iBGA Package Drypack AR0230CSSC12SUEAH3-GEVB RGB, 12deg CRA, Headboard Headboard For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. See the ON Semiconductor Device Nomenclature document (TND310/D) for a full description of the naming convention used for image sensors. For reference documentation, including information on evaluation kits, please visit our web site at www.onsemi.com. GENERAL DESCRIPTION The ON Semiconductor AR0230CS can be operated in its default mode or programmed for frame size, exposure, gain, and other parameters. The default mode output is a 1080p-resolution image at 60 frames per second (fps) through the HiSPi port. In linear mode, it outputs 12-bit or 10-bit A-Law compressed raw data, using either the parallel or serial (HiSPi) output ports. In high dynamic range mode, it outputs 12-bit compressed data using parallel output. In HiSPi mode, 12- or 14-bit compressed, or 16-bit linearized data may be output. The device may be operated in video (master) mode or in single frame trigger mode. FRAME_VALID and LINE_VALID signals are output on dedicated pins, along with a synchronized pixel clock in parallel mode. The AR0230CS includes additional features to allow application-specific tuning: windowing and offset, auto black level correction, and on-board temperature sensor. Optional register information and histogram statistic information can be embedded in the first and last 2 lines of the image frame. The AR0230CS is designed to operate over a wide temperature range of -30C to +85C ambient. FUNCTIONAL OVERVIEW The AR0230CS is a progressive-scan sensor that generates a stream of pixel data at a constant frame rate. It uses an on-chip, phase-locked loop (PLL) that can be optionally enabled to generate all internal clocks from a single master input clock running between 6 and 48 MHz. The maximum output pixel rate is 148.5 Mp/s, corresponding to a clock rate of 74.25 MHz. Figure 1 shows a block diagram of the sensor configured in linear mode, and in HDR mode. www.onsemi.com 2 AR0230CS ADC Data ADC Data 12 12 Row Noise Correction Row Noise Correction Black Level Correction Black Level Correction Test Pattern Generator Test Pattern Generator Pixel Defect Correction Pixel Defect Correction Adaptive CD Filter Adaptive CD Filter 12 12 Digital Gain and Pedestal Digital Gain and Pedestal Motion Correction HDR Linearization A-Law Compression Smoothing Filter 10 bits 12 bits HISPI 16 Parallel 16 bits Companding or ALTM 14 or 12 bits HISPI 12 bits Parallel Figure 1. Block Diagram of AR0230CS (providing offset correction and gain), and then through an analog-to-digital converter (ADC). The output from the ADC is a 12-bit value for each pixel in the array. The ADC output passes through a digital processing signal chain (which provides further data path corrections and applies digital gain). The sensor also offers a high dynamic range mode of operation where multiple images are combined on-chip to produce a single image at 16-bit per pixel value. A compression mode is further offered to allow the 16 bits per pixel to be transmitted to the host system as a 12-bit value with close to zero loss in image quality. User interaction with the sensor is through the two-wire serial bus, which communicates with the array control, analog signal chain, and digital signal chain. The core of the sensor is a 2.1 Mp Active- Pixel Sensor array. The timing and control circuitry sequences through the rows of the array, resetting and then reading each row in turn. In the time interval between resetting a row and reading that row, the pixels in the row integrate incident light. The exposure is controlled by varying the time interval between reset and readout. Once a row has been read, the data from the columns is sequenced through an analog signal chain www.onsemi.com 3 Master clock (6-48 MHz) From controller Digital I/O power Digital Core power VDD_IO VDD HiSPi PLL Analog power power power EXTCLK SADDR SDATA SCLK TRIGGER TEST DGND Digital ground VDD VDD_SLVS VDD_PLL VAA VDD_PLL VAA Analog power VAA_PIX SLVS0_P SLVS0_N SLVS1_P SLVS1_N SLVS2_N SLVS2_P SLVS3_P SLVS3_N SLVSC_P SLVSC_N FLASH SHUTTER OE_BAR RESET_BAR VDD_IO VDD_SLVS 1.5 k 1.5 k AR0230CS AGND Analog ground VAA_PIX NOTES: 1. All power supplies must be adequately decoupled 2. ON Semiconductor recommends a resistor value of 1.5k, but a greater value may be used for slower two-wired speed. 3. The parallel interface output pads can be left unconnected if the serial output interface is used. 4. ON Semiconductor recommends that 0.1 F and 10 F decoupling capacitors for each power supply are mounted as close as possible to the pad. Actual values and results may vary depending on lay out and design considerations. Refer to the AR0230CS demo headboard schematics for circuit recommendations. 5. ON Semiconductor recommends that analog power planes are placed in a manner such that coupling with the digital power planes is minimized. 6. I/O signals voltage must be configured to match VDD_IO voltage to minimize any leakage currents. Figure 2. Typical Configuration: Serial Four-Lane HiSPi Interface www.onsemi.com 4 To controller 1.5 k 1.5 k AR0230CS Master clock (6-48 MHz) Digital I/O power Digital Core power VDD_IO VDD PLL Analog power power Analog power VDD_PLL VAA_PIX VAA EXTCLK DOUT[11:0] SADDR SDATA SCLK From controller PIXCLK LINE_VALID FRAME_VALID TRIGGER OE_BAR RESET_BAR TEST FLASH SHUTTER DGND AGND Analog ground Digital ground VDD_IO VDD VDD_PLL VAA VAA_PIX Figure 3. Typical Configuration: Serial Four-Lane HiSPi Interface NOTES: 7. All power supplies must be adequately decoupled. 8. ON Semiconductor recommends a resistor value of 1.5k, but a greater value may be used for slower two-wired speed. 9. The serial interface output pads and VDDSLVS can be left unconnected if the parallel output interface is used. 10. ON Semiconductor recommends that 0.1 F and 10 F decoupling capacitors for each power supply are mounted as close as possible to the pad. Actual values and results may vary depending on lay out and design considerations. Refer to the AR0230CS demo headboard schematics for circuit recommendations. 11. ON Semiconductor recommends that analog power planes are placed in a manner such that coupling with the digital power planes is minimized. 12. I/O signals voltage must be configured to match VDD_IO voltage to minimize any leakage currents. 13. The EXTCLK input is limited to 6-48 MHz www.onsemi.com 5 To controller AR0230CS 1 A B VDD_PLL 2 3 4 5 6 7 8 9 SLVS0_P SLVS1_P SLVSC_P SLVS2_P SLVS3_P VDD VDD_IO VDD SLVS0_N SLVS1_N SLVSC_N SLVS2_N SLVS3_N DGND DGND SHUTTER AGND DGND VDD_SLVS VDD DGND DGND DGND Reserved EXTCLK PIXCLK SADDR TRIGGER DGND AGND VAA C VAA D VDD E VDD_IO DGND SDATA FLASH FRAME_VALID SCLK DGND AGND VAA_PIX F VDD DGND DOUT11 DOUT10 DOUT9 LINE_VALID Reserved AGND VAA G VAA AGND DGND DOUT8 DOUT7 DOUT6 DGND DGND VDD_IO H VDD_IO DGND DGND DOUT5 DOUT4 DOUT3 RESET_ BAR TEST VDD J DOUT2 VDD_IO DOUT1 DOUT0 VDD DGND VDD_IO OE_BAR VDD_IO DGND Figure 4. 80-Ball IBGA Package www.onsemi.com 6 AR0230CS Table 3. PIN DESCRIPTION, 80-BALL IBGA Pin Number Pin Name Type SLVS0_P A2 Output HiSPi serial data, lane 0, differential P. Description SLVS1_P A3 Output HiSPi serial data, lane 1, differential P. SLVSC_P A4 Output HiSPi serial DDR clock differential P. SLVS2_P A5 Output HiSPi serial data, lane 2, differential P. SLVS3_P A6 Output HiSPi serial data, lane 3, differential P. VDD_PLL B1 Power PLL power. SLVS0_N B2 Output HiSPi serial data, lane 0, differential N. SLVS1_N B3 Output HiSPi serial data, lane 1, differential N. SLVSC_N B4 Output HiSPi serial DDR clock differential N. SLVS2_N B5 Output HiSPi serial data, lane 2, differential N. SLVS3_N B6 Output HiSPi serial data, lane 3, differential N. SHUTTER B9 Output Control for external mechanical shutter. Can be left floating if not used. VAA C1, G1, D9, F9 Power Analog power. AGND C2, G2, D8, E8, F8 Power Analog ground. VDD_SLVS C4 Power 0.3V-0.6V or 1.7V - 1.9V port to HiSPi Output Driver. Set the High_VCM (R0x306E[9]) bit to 1 when configuring VDD_SLVS to 1.7 - 1.9V. VDD C5, J5, A9, H9, A7, D1, F1 Power Reserved C9, F7 DGND B7, C7, D7, E7, G7, B8, C8, G8, D2, E2, F2, H2, C3, G3, H3, C6, J6 Power EXTCLK D3 Input PIXCLK D4 Output SADDR D5 Input Two-Wire Serial address select. 0: 0x20. 1: 0x30 TRIGGER D6 Input Exposure synchronization input. VAA_PIX E9 Power VDD_IO E1, H1, J2, J7, A8, G9, J9 Power SDATA E3 I/O FLASH E4 Output Flash control output. FRAME_VALID E5 Output Asserted when Dout frame data is valid. SCLK E6 Input DOUT11 F3 Output Parallel pixel data output (MSB) DOUT10 F4 Output Parallel pixel data output. DOUT9 F5 Output Parallel pixel data output. LINE_VALID F6 Output Asserted when Dout line data is valid. DOUT8 G4 Output Parallel pixel data output. DOUT7 G5 Output Parallel pixel data output. DOUT6 G6 Output Parallel pixel data output. DOUT5 H4 Output Parallel pixel data output. DOUT4 H5 Output Parallel pixel data output. Parallel pixel data output. Digital power. Digital ground. External input clock. Pixel clock out. Dout is valid on rising edge of this clock. Pixel power. I/O supply power. Two-Wire Serial data I/O. Two-Wire Serial clock input. DOUT3 H6 Output RESET_BAR H7 Input Asynchronous reset (active LOW). All settings are restored to factory default. TEST H8 Input. Manufacturing test enable pin (connect to Dgnd). www.onsemi.com 7 AR0230CS Table 3. PIN DESCRIPTION, 80-BALL IBGA (continued) Pin Number Pin Name Type DOUT2 J1 Output Parallel pixel data output. Description DOUT1 J3 Output Parallel pixel data output. DOUT0 J4 Output Parallel pixel data output (LSB) OE_BAR J8 Input Output enable (active LOW). PIXEL DATA FORMAT Pixel Array Structure While the sensor's format is 1928 x 1088, additional active columns and active rows are included for use when horizontal or vertical mirrored readout is enabled, to allow readout to start on the same pixel. The pixel adjustment is always performed for monochrome or color versions. The active area is surrounded with optically transparent dummy pixels to improve image uniformity within the active area. Not all dummy pixels or barrier pixels can be read out. 1944 10 barrier + 4 border pixels 1928 x 1088 5.78 mm x 3.26 mm 1116 2 barrier + 6 border pixels 2 barrier + 6 border pixels 10 barrier + 4 border pixels Light dummy pixel Active pixel Figure 5. Pixel Array Description www.onsemi.com 8 AR0230CS Column Readout Direction .. . Active Pixel (0,0) Array Pixel (0,0) Row Readout Direction ... R G R G G B G R G R G R G R G G B G G G R G R G R G R G G B G G G B B B R G R G G G B B B B B B .. . Figure 6. Pixel Color Pattern Detail (Top Right Corner) Default Readout Order By convention, the sensor core pixel array is shown with pixel (0,0) in the top right corner (see Figure 6). This reflects the actual layout of the array on the die. Also, the first pixel data read out of the sensor in default condition is that of pixel (10, 14). When the sensor is imaging, the active surface of the sensor faces the scene as shown in Figure 7. When the image is read out of the sensor, it is read one row at a time, with the rows and columns sequenced as shown in Figure 7. Lens Scene Sensor (rear view) Row Readout Order Column Readout Order Pixel (0.0) Figure 7. Imaging a Scene www.onsemi.com 9 AR0230CS FEATURES OVERVIEW For a complete description, recommendations, and usage guidelines for product features, refer to the AR0230CS Developer Guide. 3.0 mm Dual Conversion Gain Pixel To improve the low light performance and keep the high dynamic range, a large (3.0um) dual conversion gain pixel is implemented for better image optimization. With a dual conversion gain pixel, the conversion gain of the pixel may be dynamically changed to better adapt the pixel response based on dynamic range of the scene. This gain can be switched manually or automatically by an auto exposure control module. HDR exposure ratio may be set to 4x, 8x, 16x, or 32x. Depending on whether HiSPi or Parallel mode is selected, the full 16 bit value may be output, it can be compressed to 12 bits using Adaptive Local Tone Mapping (ALTM), or companded to 12 or 14 bits. Options to output T1 only, T2 only, or pixel interleaved data are also available. Individual exposures may be read out in a line interleaved mode as described in the T1/T2 Line Interleaved Mode section. By default, the sensor powers up in HDR Mode. The HDR scheme used is multi-exposure HDR. This allows the sensor to handle up to 96 dB of dynamic range. In HDR mode, the sensor sequentially captures two exposures by maintaining two separate read and reset pointers that are interleaved within the rolling shutter readout. The intermediate pixel values are stored in line buffers while waiting for the two exposure values to be present. As soon as a pixel's two exposure values are available, they are combined to create a linearized 16-bit value for each pixel's response. The Resolution The active array supports a maximum of 1928x1088 pixels to support 1080p resolution. Utilizing a 3.0um pixel will result in an optical format of 1/2.7-inch (approximately 6.6mm diagonal). Frame Rate At full (1080p) resolution, the AR0230CS is capable of running up to 3060 fps. Image Acquisition Mode time in such a way that the stream of output frames from the AR0230CS switches cleanly from the old integration time to the new while only generating frames with uniform integration. See "Changes to Integration Time" in the AR0230CS Register Reference. * Global reset mode. This mode can be used to acquire a single image at the current resolution. In this mode, the end point of the pixel integration time is controlled by an external electromechanical shutter, and the AR0230CS provides control signals to interface to that shutter. The benefit of using an external electromechanical shutter is that it eliminates the visual artifacts associated with ERS operation. Visual artifacts arise in ERS operation, particularly at low frame rates, because an ERS image effectively integrates each row of the pixel array at a different point in time. The AR0230CS supports two image acquisition modes: * Electronic rolling shutter (ERS) mode This is the normal mode of operation. When the AR0230CS is streaming, it generates frames at a fixed rate, and each frame is integrated (exposed) using the ERS. When ERS mode is in use, timing and control logic within the sensor sequences through the rows of the array, resetting and then reading each row in turn. In the time interval between resetting a row and subsequently reading that row, the pixels in the row integrate incident light. The integration (exposure) time is controlled by varying the time between row reset and row readout. For each row in a frame, the time between row reset and row readout is the same, leading to a uniform integration time across the frame. When the integration time is changed (by using the two-wire serial interface to change register settings), the timing and control logic controls the transition from old to new integration Embedded Data and Statistics The AR0230CS has the capability to output image data and statistics embedded within the frame timing. There are two types of information embedded within the frame readout. * Embedded Data: If enabled, these are displayed on the two rows * immediately before the first active pixel row is displayed. Embedded Statistics: If enabled, these are displayed on the two rows immediately after the last active pixel row is displayed. www.onsemi.com 10 AR0230CS Multi-Camera Synchronization The AR0230CS supports advanced line synchronization controls for multi-camera (stereo) support. Slave Mode The slave mode feature of the AR0230CS supports triggering the start of a frame readout from an input signal that is supplied from an external ASIC. The slave mode signal allows for precise control of frame rate and register change updates. Context Switching and Register Updates switch change bit. When the context switch is configured to context A the sensor will reference the context A registers. If the context switch is changed from A to B during the readout of frame n, the sensor will then reference the context B coarse_integration_time registers in frame n+1 and all other context B registers at the beginning of reading frame n+2. The sensor will show the same behavior when changing from context B to context A. The registers listed in Table 4 are context-switchable: The user has the option of using the highly configurable context memory, or a simplified implementation in which only a subset of registers is available for switching. The AR0230 supports a highly configurable context switching RAM of size 256 x 16. Within this Context Memory, changes to any register may be stored. The register set for each context must be the same, but the number of contexts and registers per context are limited only by the size of the context memory. Alternatively, the user may switch between two predefined register sets A and B by writing to a context Table 4. LIST OF CONFIGURABLE REGISTERS FOR CONTEXT A AND CONTEXT B Context A Context B Register Description Register Description coarse_integration_time coarse_integration_time_cb line_length_pck ine_length_pck_cb frame_length_lines frame_length_lines_cb row_bin row_bin_cb col_bin col_bin_cb fine_gain fine_gain_cb Coarse_gain coarse_gain_cb x_addr_start x_addr_start_cb y_addr_start y_addr_start_cb x_addr_end x_addr_end_cb y_addr_end y_addr_end_cb y_odd_inc y_odd_inc_cb x_odd_inc x_odd_inc_cb green1_gain green1_gain_cb blue_gain blue_gain_cb red_gain red_gain_cb green2_gain green2_gain_cb global_gain global_gain_cb operation_mode_ctrl operation_mode_ctrl_cb bypass_pix_comb bypass_pix_comb_cb Motion Compensation/DLO optionally enabled by register write. Additional parameters are available to control the extent of motion detection and correction as per the requirements of the specific application. In typical multi-exposure HDR systems, motion artifacts can be created when objects move during the T1 or T2 integration time. When this happens, edge artifacts can potentially be visible and might look like a ghosting effect. To correct this, the AR0230CS has special 2D motion compensation circuitry that detects motion artifacts and corrects the image. The motion compensation feature can be www.onsemi.com 11 AR0230CS Tone Mapping readout window. Horizontal binning is achieved in the digital readout. The sensor will sample the combined 2x adjacent pixels within the same color plane. Vertical row binning is applied in the pixel readout. Row binning can be configured as 2x rows within the same color plane. Pixel skipping can be configured up to 2x in both the x-direction and y-direction. Skipping pixels in the x-direction will not reduce the row time. Skipping pixels in the y direction will reduce the number of rows from the sensor effectively reducing the frame time. Skipping will introduce image artifacts from aliasing. The AR0230CS supports row wise vertical binning. Row wise vertical summing is not supported. Real-world scenes often have a very high dynamic range (HDR) that far exceeds the electrical dynamic range of the imager. Dynamic range is defined as the luminance ratio between the brightest and the darkest objects in a scene. Even though the AR0230CS can capture full dynamic range images, the images are still limited by the low dynamic range of display devices. Today's typical LCD monitor has a contrast ratio around 1,000:1 while it is not atypical for an HDR image having a contrast ratio of around 250,000:1. Therefore, in order to reproduce HDR images on a low dynamic range display device, the captured high dynamic range must be compressed to the available range of the display device. This is commonly called tone mapping. The AR0230CS has implemented an adaptive local tone mapping (ALTM) feature to reproduce visually appealing images that increase the local contrast and the visibility of the images. Clocking Options The sensor contains a phase-locked loop (PLL) that is used for timing generation and control. The required VCO clock frequency is attained through the use of a pre-PLL clock divider followed by a multiplier. The PLL multiplier should be an even integer. If an odd integer (M) is programmed, the PLL will default to the lower (M-1) value to maintain an even multiplier value. The multiplier is followed by a set of dividers used to generate the output clocks required for the sensor array, the pixel analog and digital readout paths, and the output parallel and serial interfaces. Use of the PLL is required when using the HiSPi interface. Adaptive Color Difference (ADACD) Noise Filtering A good noise reduction filter will remove noise from an image while retaining as much image detail as possible. To retain image detail, the noise reduction filter must adapt to the image signal. To remove noise, the noise reduction filter must adapt to the noise level of the image signal. The key is to remove the appropriate amount of noise. Over-filtering will cause image blurring while under-filtering will leave noise in the image. The AdaCD algorithm relies on a noise model derived from characterization data to aid in separating noise from signal. The AR0230CS AdaCD algorithm performs pixel-by-pixel color noise correction for each of the red, blue, and green color planes. Each pixel is corrected based on surrounding pixel values on the same color plane and a noise model. The noise model is based on characterization data, and takes into account applied analog gain. Temperature Sensor The AR0230CS sensor has a built-in PTAT-based temperature sensor, accessible through registers, that is capable of measuring die junction temperature. The value read out from the temperature sensor register is an ADC output value that needs to be converted downstream to a final temperature value in degrees Celsius. Since the PTAT device characteristic response is quite linear in the temperature range of operation required, a simple linear function can be used to convert the ADC output value to the final temperature in degrees Celsius. A single reference point will be made available via register read as well as a slope for back-calculating the junction temperature value. An error of +/-5% or better over the full specified operating range of the sensor is to be expected. Fast Mode Switch (Combi Mode) To facilitate faster switching between linear and HDR modes, the AR0230CS includes a Combi Mode feature. When enabled, Combi Mode loads a single (HDR) sequencer. When switching from HDR to linear modes, the sequencer remains the same, but only the T1 image is output. While not optimized for linear mode operation, it allows faster mode switching as a new sequencer load is not needed. Switching between modes may result in the output of one bad frame. Silicon / Firmware / Sequencer Revision Information A revision register will be provided to read out (via I2C) silicon and sequencer/OTPM revision information. This will be helpful to distinguish among different lots of material if there are future OTPM or sequencer revisions. Analog/Digital Gain A programmable analog gain of 1.5x to 12x (HDR) and 1.5x to 16x (linear) applied simultaneously to all color channels will be featured along with a digital gain of 1x to 16x that may be configured on a per color channel basis. Lens Shading Correction The latest lens shading correction algorithm will be included for potential low Z height applications. Skipping/Binning Modes Companding The AR0230CS supports subsampling. Subsampling allows the sensor to read out a smaller set of active pixels by either skipping, binning, or summing pixels within the The 16-bit linearized HDR image may be compressed to 12- or 14- bits using on-chip companding. This is useful if www.onsemi.com 12 AR0230CS lanes. The AR0230CS supports serial data widths of 10, 12, 14, 16, or 20 bits on one, two, or four lanes. The specification includes a DLL to compensate for differences in group delay for each data lane. The DLL is connected to the clock lane and each data lane, which acts as a control master for the output delay buffers. Once the DLL has gained phase lock, each lane can be delayed in 1/8 unit interval (UI) steps. This additional delay allows the user to increase the setup or hold time at the receiver circuits and can be used to compensate for skew introduced in PCB design. Delay compensation may be set for clock and/or data lines in the hispi_timing register R0x31C0. If the DLL timing adjustment is not required, the data and clock lane delay settings should be set to a default code of 0x0000 to reduce jitter, skew, and power dissipation. on-chip ALTM will not be used and the ISP cannot handle 16 bit data. Compression When the AR0230CS is configured for linear mode operation, the sensor can optionally compress 12-bit data to 10-bit using A-law compression. The A-law compression is disabled by default. Packaging The AR0230CS will be offered in a 10x10 80-iBGA package (parallel and HiSPi). The package will have anti-reflective coating on both sides of the cover glass. Parallel Interface The parallel pixel data interface uses these output-only signals: * FRAME_VALID * LINE_VALID * PIXCLK * DOUT[11:0] The parallel pixel data interface is disabled by default at power up and after reset. It can be enabled by programming R0x301A. When the parallel pixel data interface is in use, the serial data output signals can be left unconnected. Sensor Control Interface The two-wire serial interface bus enables read/write access to control and status registers within the AR0230CS. The interface protocol uses a master/slave model in which a master controls one or more slave devices. The sensor acts as a slave device. The master generates a clock (SCLK) that is an input to the sensor and is used to synchronize transfers. Data is transferred between the master and the slave on a bidirectional signal (SDATA). SDATA is pulled up to VDD_IO off-chip by a 1.5k resistor. Either the slave or master device can drive SDATA LOW-the interface protocol determines which device is allowed to drive SDATA at any given time. The two-wire serial interface can run at 100 kHz or 400 kHz. High Speed Serial Pixel (HiSPi) Interface The HiSPi interface supports three protocols, Streaming-S, Streaming-SP, and Packetized SP. The streaming protocols conform to a standard video application where each line of active or intra-frame blanking provided by the sensor is transmitted at the same length. The Packetized SP protocol will transmit only the active data ignoring line-to-line and frame-to-frame blanking data. The HiSPi interface building block is a unidirectional differential serial interface with four data and one double data rate (DDR) clock lanes. One clock for every four serial data lanes is provided for phase alignment across multiple T1/T2 Line Interleaved Mode The AR0230CS has the capability to output the T1 and T2 exposures separately, in a line interleaved format. The purpose of this is to enable off chip HDR linear combination and processing. See the AR0230CS Developer Guide for more information. www.onsemi.com 13 AR0230CS 80 Blue Red Green (B) Green (R) Quantum Efficiency (%) 70 60 50 40 30 20 10 0 350 450 550 650 750 850 950 1050 1150 Wavelength (nm) Figure 8. Typical Spectral Characteristics ELECTRICAL SPECIFICATIONS Unless otherwise stated, the following specifications apply under the following conditions: VDD = 1.8V - 0.10/+0.15; VDD_IO = VDD_PLL = VAA = VAA_PIX = 2.8V 0.3V; VDD_SLVS = 0.4V - 0.1/+0.2; TA = -30C to +85C-40C to +105C; output load = 10pF; frequency = 74.25 MHz; HiSPi off. Two-Wire Serial Register Interface The electrical characteristics of the two-wire serial register interface (SCLK, SDATA) are shown in Figure 9 and Table 5. SDATA tLOW tf tr t SU;DAT tf tr t HD;STA tBUF SCLK t S t HD;STA tHD;DAT t HIGH SU;STA Sr t SU;STO Figure 9. Two-Wire Serial Bus Timing Parameters NOTE: Read sequence: For an 8-bit READ, read waveforms start after WRITE command and register address are issued. www.onsemi.com 14 P S AR0230CS Table 5. TWO-WIRE SERIAL BUS CHARACTERISTICS (fEXTCLK = 27 MHz;VDD = 1.8V; VDD_ IO = 2.8V;VAA_PIX = 2.8V;VDD_ PLL = 2.8V; TA = 25C) Parameter Standard Mode Symbol Fast Mode Unit fSCL 0 100 0 400 KHz tHD;STA 4.0 - 0.6 - s LOW period of the SCLK clock tLOW 4.7 - 1.3 - s HIGH period of the SCLK clock tHIGH 4.0 - 0.6 - s Set-up time for a repeated START condition tSU;STA 4.7 - 0.6 - s Data hold time tHD;DAT 04 3.455 06 0.95 s Data set-up time tSU;DAT 250 - 1006 - ns tr - 1000 20 + 0.1Cb7 300 ns SCLK Clock Frequency Hold time (repeated) START condition. After this period, the first clock pulse is generated Rise time of both SDATA and SCLK signals Fall time of both SDATA and SCLK signals Set-up time for STOP condition Bus free time between a STOP and START condition Capacitive load for each bus line Serial interface input pin capacitance SDATA max load capacitance SDATA pull-up resistor tf - 300 20 + 0.1Cb7 300 ns tSU;STO 4.0 - 0.6 - s tBUF 4.7 - 1.3 - s Cb - 400 - 400 pF CIN_SI - 3.3 - 3.3 pF CLOAD_SD - 30 - 30 pF RSD 1.5 4.7 1.5 4.7 K This table is based on I2C standard (v2.1 January 2000). Philips Semiconductor. Two-wire control is I2C-compatible. All values referred to VIHmin = 0.9 VDD and VILmax = 0.1VDD levels. Sensor EXCLK = 27 MHz. A device must internally provide a hold time of at least 300 ns for the SDATA signal to bridge the undefined region of the falling edge of SCLK. The maximum tHD;DAT has only to be met if the device does not stretch the LOW period (tLOW) of the SCLK signal. A Fast-mode I2C-bus device can be used in a Standard-mode I2C-bus system, but the requirement tSU;DAT 250 ns must then be met. This will automatically be the case if the device does not stretch the LOW period of the SCLK signal. If such a device does stretch the LOW period of the SCLK signal, it must output the next data bit to the SDATA linet r max + tSU;DAT = 1000 + 250 = 1250 ns (according to the Standard-mode I2C-bus specification) before the SCLK line is released. 7. Cb = total capacitance of one bus line in pF. 1. 2. 3. 4. 5. 6. I/O Timing By default, the AR0230CS launches pixel data, FV, and LV with the falling edge of PIXCLK. The expectation is that the user captures DOUT[11:0], FV, and LV using the rising edge of PIXCLK. See Figure 10 below and Table 6 for I/O timing (AC) characteristics. www.onsemi.com 15 AR0230CS t t RP tP tR t FP 90% 90% 10% 10% EXTCLK EXTCLK PIXCLK t PD Data[11:0] LINE_VALID/ FRAME_VALID Pxl_o Pxl_1 Pxl_2 Pxl_n t PLH t PFH t PFL t PLL FRAME_VALID leads LINE_VALID by 6 PIXCLKs FRAME_VALID trails LINE_VALID by 6 PIXCLKs Figure 10. I/O Timing Diagram Table 6. I/O TIMING CHARACTERISTICS Symbol Definition fEXTCLK1s Min Typ Input clock frequency 6 tEXTCLK1 Input clock period 20.8 tR Input clock rise time tF tRP tFP Condition Max Unit - 48 MHz - 166 ns - 3 - ns Input clock fall time - 3 - ns Pixclk rise time 2 3.5 5 ns Pixclk fall time 2 3.5 5 ns Clock duty cycle 45 50 55 % 10 14 18 ns 74.25 MHz tCP EXTCLK to PIXCLK propagation delay Nominal voltages, PLL Disabled fPIXCLK PIXCLK frequency Default, Nominal Voltages 6 tPD PIXCLK to data valid Default, Nominal Voltages 3.6 5.5 9.5 ns tPFH PIXCLK to FV HIGH Default, Nominal Voltages 2.9 5.3 9 ns tPLH PIXCLK to LV HIGH Default, Nominal Voltages 2.9 5 9 ns tPFL PIXCLK to FV LOW Default, Nominal Voltages 2.9 5 9 ns tPLL PIXCLK to LV LOW Default, Nominal Voltages 2.9 4.8 9 ns <10 - pF 2.5 - pF CLOAD Output load capacitance - CIN Input pin capacitance - 1. I/O timing characteristics are measured under the following conditions: - Temperature is 255C ambient - 10 pF load - 1.8V I/O supply voltage www.onsemi.com 16 AR0230CS DC ELECTRICAL CHARACTERISTICS The DC electrical characteristics are shown in the tables below. Table 7. DC ELECTRICAL CHARACTERISTICS Definition Symbol Condition Min VDD Core digital voltage 1.7 VDD_IO I/O digital voltage 1.7/2.5 VAA Analog voltage 2.5 VAA_PIX Pixel supply voltage 2.5 Typ Max Unit 1.8 1.95 V 1.8/2.8 1.9/3.1 V 2.8 3.1 V 2.8 3.1 V VDD_PLL PLL supply voltage 2.5 2.8 3.1 V VDD_SLVS HiSPi supply voltage 0.3 0.4 0.6 V VIH Input HIGH voltage VDD_IO*0.7 - - V VIL Input LOW voltage IIN Input leakage current VOH - - VDD_IO*0.3 V 20 - - A VDD_IO-0.3 - - V No pull-up resistor; VIN = VDD_IO or DGND Output HIGH voltage VOL Output LOW voltage - - 0.4 V IOH Output HIGH current At specified VOH -22 - - mA IOL Output LOW current At specified VOL - - 22 mA CAUTION: Stresses greater than those listed in Table 8 may cause permanent damage to the device. This is a stress rating only, and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Table 8. ABSOLUTE MAXIMUM RATINGS Symbol Definition Condition Typ Max Unit VDD_MAX Core digital voltage -0.3 2.4 V VDD_IO_MAX I/O digital voltage -0.3 4 V VAA_MAX Analog voltage -0.3 4 V VAA_PIX Pixel supply voltage -0.3 4 V VDD_PLL PLL supply voltage -0.3 4 V VDD_SLVS_MAX HiSPi I/O digital voltage -0.3 2.4 V tST Storage temperature -40 85 C 1. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Table 9. 1080p30 HDR (ALTM) 74 MHz Parallel 2.8V Definition Condition Symbol Voltage Min Typ Max Digital operating current Streaming 1080p30 IDD 1.8 90 175 220 I/O digital operating current Streaming 1080p30 IDD_IO 2.8 10 30 50 Analog operating current Streaming 1080p30 IAA 2.8 35 45 85 Pixel supply current Streaming 1080p30 IAA_PIX 2.8 2 4 7 PLL supply current Streaming 1080p30 IDD_PLL 2.8 5.5 6.2 7 Power (mW) 309 557.76 813.2 2. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL = VDD_IO = 2.8 V - VDD = 1.8 V - PLL Enabled and PIXCLK = 74.25 Mhz - Low power mode enabled - TA = 25C www.onsemi.com 17 AR0230CS Table 10. 1080p30 Linear 74MHz Parallel 2.8V Definition Condition Symbol Voltage Min Typ Max Digital operating current Streaming 1080p30 IDD 1.8 75 107 145 I/O digital operating current Streaming 1080p30 IDD_IO 2.8 10 30 50 Analog operating current Streaming 1080p30 IAA 2.8 20 30 50 Pixel supply current Streaming 1080p30 IAA_PIX 2.8 1 3 7 PLL supply current Streaming 1080p30 IDD_PLL 2.8 5.5 6.2 7 Power (mW) 237.2 386.36 580.2 3. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL = VDD_IO =2.8 V - VDD= 1.8 V - PLL Enabled and PIXCLK = 74.25 MHz - Low power mode enabled - TA = 25C Table 11. 1080p30 HDR (ALTM) 74MHz Parallel 1.8V Definition Condition Symbol Voltage Min Typ Max Digital operating current Streaming 1080p30 IDD 1.8 90 175 220 I/O digital operating current Streaming 1080p30 IDD_IO 1.8 10 20 30 Analog operating current Streaming 1080p30 IAA 2.8 35 45 85 Pixel supply current Streaming 1080p30 IAA_PIX 2.8 2 4 7 PLL supply current Streaming 1080p30 IDD_PLL 2.8 5.5 6.2 7 Power (mW) 299 509.76 727.2 4. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL = 2.8 V - VDD = VDD_IO= 1.8 V - PLL Enabled and PIXCLK = 74.25 MHz - Low power mode enabled - TA = 25C Table 12. 1080p30 Linear 74 MHz Parallel 1.8V Definition Condition Symbol Voltage Min Typ Max Digital operating current Streaming 1080p30 IDD 1.8 75 107 145 I/O digital operating current Streaming 1080p30 IDD_OIO 1.8 10 20 30 Analog operating current Streaming 1080p30 IAA 2.8 20 30 50 Pixel supply current Streaming 1080p30 IDD_PIX 2.8 1 3 7 PLL supply current Streaming 1080p30 IDD_PLL 2.8 5.5 6.2 7 Power (mW) 227.2 338.36 494.2 5. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL =2.8 V - VDD = VDD_IO= 1.8 V - PLL Enabled and PIXCLK = 74.25 MHz - Low power mode enabled - TA = 25C Table 13. 1080p30 HDR (ALTM) 74 MHz HiSPi SLVS (Low Power Mode) Definition Condition Symbol Voltage Min Typ Max Digital Operating Current Streaming 1080p30 IDD 1.8 145 175 235 Analog Operating Current Streaming 1080p30 IAA 2.8 25 46 65 Pixel Supply Current Streaming 1080p30 IAA_PIX 2.8 1 4 7 PLL Supply Current Streaming 1080p30 IDD_PLL 2.8 6 7.4 8.5 SLVS Supply Current Streaming 1080p30 IDD_SLVS 0.4 3 9 14 Power (mW) 351.8 479.32 654 www.onsemi.com 18 AR0230CS 6. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL = 2.8 V - VDD = VDD_IO= 1.8 V - VDD_SLVS= 0.4V - PLL Enabled and PIXCLK = 37.125 MHz - 4-lane HiSPi mode - Low power mode enabled - TA = 25C Table 14. 1080p30 Linear 74 MHz HiSPi SLVS Definition Condition Symbol Voltage Min Typ Max Digital Operating Current Streaming 1080p30 IDD 1.8 75 115 155 Analog Operating Current Streaming 1080p30 IAA 2.8 20 30 50 Pixel Supply Current Streaming 1080p30 IAA_PIX 2.8 1 3 7 PLL Supply Current Streaming 1080p30 IDD_PLL 2.8 6 7.4 8.5 SLVS Supply Current Streaming 1080p30 IDD_SLVS 0.4 3 9 14 Power (mW) 211.8 323.72 468 7. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL =2.8 V - VDD = VDD_IO= 1.8 V - VDD_SLVS= 0.4V - PLL Enabled and PIXCLK = 74.25 MHz - 4-lane HiSPi mode - Low power mode enabled - TA = 25C Table 15. 1080p30 HDR (ALTM) 74 MHz HiSPi HiVcm (Low Power Mode) Definition Condition Symbol Voltage Min Typ Max Digital Operating Current Streaming 1080p30 IDD 1.8 145 175 235 Analog Operating Current Streaming 1080p30 IAA 2.8 25 46 65 Pixel Supply Current Streaming 1080p30 IAA_PIX 2.8 1 4 7 PLL Supply Current Streaming 1080p30 IDD_PLL 2.8 6 7.4 8.5 SLVS Supply Current Streaming 1080p30 IDD_SLVS 1.8 10 20 30 Power (mW) 368.6 511.72 702.4 8. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL =2.8 V - VDD = VDD_IO = VDD_SLVS = 1.8 V - PLL Enabled and PIXCLK = 37.125 MHz - 4-lane HiSPi mode - Low power mode enabled - TA = 25C Table 16. 1080p30 Linear 74Mhz HiSPi HiVcm Definition Condition Symbol Voltage Min Typ Max Digital Operating Current Streaming 1080p30 IDD 1.8 75 115 155 Analog Operating Current Streaming 1080p30 IAA 2.8 20 30 50 Pixel Supply Current Streaming 1080p30 IAA_PIX 2.8 1 3 7 PLL Supply Current Streaming 1080p30 IDD_PLL 2.8 6 7.4 8.5 SLVS Supply Current Streaming 1080p30 IDD_SLVS 9. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL =2.8 V - VDD = VDD_IO = VDD_SLVS= 1.8 V - PLL Enabled and PIXCLK = 74.25 MHz - 4-lane HiSPi mode - Low power mode enabled - TA = 25C www.onsemi.com 19 1.8 10 20 30 Power (mW) 228.6 356.12 516.4 AR0230CS Table 17. Line Interleaved HiSPi SLVS Definition Condition Symbol Voltage Min Typ Max Digital Operating Current Streaming 1080p30 IDD 1.8 185 230 265 Analog Operating Current Streaming 1080p30 IAA 2.8 20 36 55 Pixel Supply Current Streaming 1080p30 IAA_PIX 2.8 1 3.3 7 PLL Supply Current Streaming 1080p30 IDD_PLL 2.8 7 8.2 9.5 SLVS Supply Current Streaming 1080p30 IDD_SLVS 0.4 3 9 14 Power (mW) 412.6 550.6 668.8 10. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL =2.8 V - VDD = VDD_IO= 1.8 V - VDD_SLVS= 0.4 V - PLL Enabled and PIXCLK = 74.25 MHz - 4-lane HiSPi mode - TA= 25C Table 18. Line Interleaved HiSPi HiVcm Definition Condition Symbol Voltage Min Typ Max Digital Operating Current Streaming 1080p30 IDD 1.8 185 230 265 Analog Operating Current Streaming 1080p30 IAA 2.8 20 36 55 Pixel Supply Current Streaming 1080p30 IAA_PIX 2.8 1 3.3 7 PLL Supply Current Streaming 1080p30 IDD_PLL 2.8 7 8.2 9.5 SLVS Supply Current Streaming 1080p30 IDD_SLVS 1.8 10 20 30 Power (mW) 429.4 583 717.2 11. Operating currents are measured in mA at the following conditions: - VAA = VAA_PIX = VDD_PLL = 2.8 V - VDD= VDD_IO = 1.8 V - VDD_SLVS = 1.8 V - PLL Enabled and PIXCLK = 74.25 MHz - 4-lane HiSPi mode - TA= 25C HiSPi Electrical Specifications The ON Semiconductor AR0230CS sensor supports both SLVS and HiVCM HiSPi modes. Refer to the High-Speed Serial Pixel (HiSPi) Interface Physical Layer Specification v2.00.00 for electrical definitions, specifications, and timing information. The VDD_SLVS supply in this datasheet corresponds to VDD_TX in the HiSPi Physical Layer Specification. Similarly, VDD is equivalent to VDD_HiSPi as referenced in the specification. The DLL as implemented on AR0230CS is limited in the number of available delay steps and differs from the HiSPi specification as described in this section. Table 19. CHANNEL SKEW (Measurement Conditions: _VDD_HiSPi = 1.8V;VDD_HiSPi_TX = 0.4V; Data Rate = 480 Mbps; DLL set to 0) Data Lane Skew in Reference to Clock tCHSKEW1PHY www.onsemi.com 20 -150 ps AR0230CS POWER-ON RESET AND STANDBY TIMING Power-Up Sequence 6. After the last power supply is stable, enable EXTCLK. 7. Assert RESET_BAR for at least 1ms. The parallel interface will be tri-stated during this time. 8. Wait 150000 EXTCLKs (for internal initialization into software standby. 9. Configure PLL, output, and image settings to desired values. 10. Wait 1ms for the PLL to lock. 11. Set streaming mode (R0x301a[2] = 1). The recommended power-up sequence for the AR0230CS is shown in Figure 11. The available power supplies (VDD_IO, VDD, VDD_SLVS, VDD_PLL, VAA, VAA_PIX) must have the separation specified below. 1. Turn on VDD_PLL power supply. 2. After 100s, turn on VAA and VAA_PIX power supply. 3. After 100s, turn on VDD_IO power supply. 4. After 100s, turn on VDD power supply. 5. After 100s, turn on VDD_SLVS power supply. VDD_PLL (2.8) t0 VAA_PIX VAA_(2.8) t1 VDD_IO (1.8/2.8) VDD(1.8) t2 t3 VDD_SLVS (0.4) EXTCLK t4 RESET_BAR tx t5 Internal Initialization Hard Reset t6 Software Standby PLL Lock Streaming Figure 11. Power Up Table 20. POWER-UP SEQUENCE Definition Symbol Minimum Typical Maximum Unit VDD_PLL to VAA/VAA_PIX t0 0 100 - ms VAA/VAA_PIX to VDD_IO t1 0 100 - ms VDD_IO to VDD t2 0 100 - ms VDD to VDD_SLVS t3 0 100 - ms Xtal settle time tx - 30 - ms Hard Reset t4 1 - - ms Internal Initialization t5 150000 - - EXTCLKs PLL Lock Time t6 1 - - ms 12. Xtal settling time is component-dependent, usually taking about 10 - 100 ms. 13. Hard reset time is the minimum time required after power rails are settled. In a circuit where Hard reset is held down by RC circuit, then the RC time must include the all power rail settle time and Xtal settle time. 14. It is critical that VDD_PLL is not powered up after the other power supplies. It must be powered before or at least at the same time as the others. If the case happens that VDD_PLL is powered after other supplies then sensor may have functionality issues and will experience high current draw on this supply. www.onsemi.com 21 AR0230CS 2. The soft standby state is reached after the current row or frame, depending on configuration, has ended. 3. Turn off VDD_SLVS. 4. Turn off VDD. 5. Turn off VDD_IO. 6. Turn off VAA/VAA_PIX. 7. Turn off VDD_PLL. Power-Down Sequence The recommended power-down sequence for the AR0230CS is shown in Figure 12. The available power supplies (VDD_IO, VDD, VDD_SLVS, VDD_PLL, VAA, VAA_PIX) must have the separation specified below. 1. Disable streaming if output is active by setting standby R0x301a[2] = 0 VDD_SLVS (0.4) t0 VDD(1.8) t1 VDD_IO(1.8/2.8) t2 VAA_PIX VAA(2.8) t3 VDD_PLL (2.8) EXTCLK t4 Power Down until next Power up cycle Figure 12. Power Down Table 21. POWER-DOWN SEQUENCE Definition Symbol Minimum Typical Maximum Unit VDD_SLVS to VDD t0 0 - - ms VDD to VDD_IO t1 0 - - ms VDD_IO to VAA/VAA_PIX t2 0 - - ms VAA/VAA_PIX to VDD_PLL t3 0 - - ms Power Down until Next Power Up Time t4 100 - - ms t4 is required between power down and next power up time; all decoupling caps from regulators must be completely discharged. www.onsemi.com 22 AR0230CS IBGA80 10x10 CASE 503AN ISSUE O www.onsemi.com 23 AR0230CS ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. 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