TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER r r D D D D D D D D D D TAOS141 - JULY 2011 102 x 1 Sensor Element Organization 300 Dots-per-Inch Pixel Pitch High Sensitivity On-Chip 8-Bit Analog-to-Digital Conversion Three-Zone Programmable Offset (Dark Level) and Gain High Speed Serial Interface 1 MHz Pixel Rate Single 3-V to 5.5-V Supply Replacement for TSL3301 RoHS Compliant CL PACKAGE (TOP VIEW) SCLK 1 8 NC VDD 2 7 GND SDIN 3 6 GND SDOUT 4 5 NC NC - No internal connection Package Drawing is Not to Scale Description The TSL3301CL is a high-sensitivity 300-dpi, linear optical sensor array with integrated 8-bit analog-to-digital converters. The array consists of 102 pixels: 100 inner pixels and 2 end pixels. The inner pixels measure 85 m (H) by 77 m (W) on 85-m centers and the end pixels are 132 m (H) by 49 m (W). Associated with each pixel is a charge integrator/amplifier and sample-hold circuit. All pixels have concurrent integration periods and sampling times. The array is split into three 34-pixel zones, with each zone having programmable gain and offset levels. Data communication is accomplished through a three-wire serial interface. Intended for use in high performance, cost-sensitive scanner applications, the TSL3301CL is based on a linear sensor array die that has expanded capability, including multi-die addressing and cascade options. Please contact TAOS for additional information on die and multi-die package availability. Functional Block Diagram PIXEL ARRAY WITH INTEGRATORS AND S-H (51-bit shift register) PIXCLK SI HOLD ZERO LEFT ODD 8 SCLK 5 SDIN DIGITAL I/O AND CONTROL ADDR<4:0> WRITE 3 RIGHT ODD RIGHT EVEN IREF DB<7:0> READ SDOUT LEFT EVEN OUTPUT CHARGE-TOVOLTAGE CONVERTER WITH PROGRAMMABLE GAINS AND OFFSETS VREF IREF SECTOR BIAS BLOCK VREF RESET/SAMPLE START DUAL 8-BIT SA ADC IREF ADCLK The LUMENOLOGY r Company Copyright E 2011, TAOS Inc. r Texas Advanced Optoelectronic Solutions Inc. 1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) r 673-0759 www.taosinc.com 1 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 Terminal Functions TERMINAL NAME NO. I/O DESCRIPTION GND 6, 7 Ground SCLK 1 I System clock input for serial I/O and all internal logic. SDIN 3 I Serial data input. Data is clocked in on the rising edge of SCLK. SDOUT 4 O Serial data output. Data is clocked out on the falling edge of SCLK. VDD 2 Positive supply voltage. Detailed Description The TSL3301CL is a 102 x 1 linear optical array with onboard A/D conversion. It communicates over a serial digital interface and operates over a 3 V to 5.5 V range. The array is divided into three 34-pixel zones (left, center, and right), with each zone having programmable gain and offset (dark signal) correction. The sensor consists of 102 photodiodes, also called pixels, arranged in a linear array. Light energy impinging on a pixel generates a photocurrent, which is then integrated by the active integration circuitry associated with that pixel. During the integration period, a sampling capacitor connects to the output of the integrator through an analog switch. The amount of charge accumulated at each pixel is directly proportional to the light intensity (Ee) on that pixel and to the integration time (tint). At maximum programmed gain, one LSB corresponds to approximately 300 electrons. Integration, sampling, output, and reset of the integrators are performed by the control logic in response to commands input via the SDIN pin. Data is read out on the SDOUT pin. A normal sequence of operation consists of a pixel reset (RESET), start of integration (STARTInt), integration period, sampling of integrators (SAMPLEInt), and pixel output (READPixel). Reset sets all the integrators to zero. Start of integration releases the integrators from the reset state and defines the beginning of the integration period. Sampling the integrators ends the integration period and stores the charge accumulated in each pixel in a sample and hold circuit. Reading the pixels causes the sampled value of each pixel to be converted to 8-bit digital format and output on the SDOUT pin. All 102 pixels are output sequentially unless interrupted by an abort (ABORTPixel) command or reset by a RESET command. Gain adjustment is controlled by three 5-bit DACs, one for each of the the three zones. Table 1 lists the gain settings and the corresponding pixel values. Offset is affected by the gain setting and may have to be adjusted after gain changes are made. Offset correction is controlled by three 8-bit sign-magnitude DACs and is performed in the analog domain prior to the digital conversion. There is a separate offset DAC for each of the three zones. Codes 0h - 7Fh correspond to positive offset values and codes 80h - FFh correspond to negative offset values. The offset correction is proportional to the gain setting. At minimal gain, one LSB of the offset DAC corresponds to approximately 1/3 LSB of the device output, and at maximum gain, to about 1 LSB of the device output. Note that the gain and offset registers are in indeterminate states after power up and must be set by the controller as required. Sign-magnitude is a binary representation in which the most significant bit (MSB) is used to represent the sign of the number, with the remaining bits representing the magnitude. An MSB of 1 indicates a negative number. Copyright E 2011, TAOS Inc. The LUMENOLOGY r Company r r 2 www.taosinc.com TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 Table 1. Gain Settings and Results GAIN CODE RELATIVE GAIN 0 1 1 1.02 2 1.05 3 4 % INCREASE GAIN CODE RELATIVE GAIN % INCREASE 16 1.52 3.23 2.17 17 1.57 3.33 2.22 18 1.62 3.45 1.07 2.27 19 1.68 3.57 1.09 2.33 20 1.74 3.70 5 1.12 2.38 21 1.81 3.85 6 1.15 2.44 22 1.88 4.00 7 1.18 2.50 23 1.96 4.17 8 1.21 2.56 24 2.05 4.35 9 1.24 2.63 25 2.14 4.55 10 1.27 2.70 26 2.24 4.76 11 1.31 2.78 27 2.35 5.00 12 1.34 2.86 28 2.48 5.26 13 1.38 2.94 29 2.61 5.56 14 1.43 3.03 30 2.77 5.88 15 1.47 3.13 31 2.94 6.25 Serial Interface The serial interface follows a USART format, with start bit, 8 data bits, and one or more stop bits. Data is clocked in synchronously on the rising edge of SCLK and clocked out on the falling edge of SCLK. Stop bits are not required on the input. When clocking data out continuously (i.e., reading out pixels) there will be one stop bit between data words. The receive and transmit state machines are independent, which means commands can be issued while reading data. This feature allows starting new integration cycles while reading data. Note that this allows undefined conditions so care must be taken not to issue commands that will cause outputs (such as register read) while reading out data. For instance, issuing a register read command while reading out image data will result in garbage out. Likewise, it is possible to change offset and gain registers during a readout, which can give unpredictable results. It is not necessary to have a continuously active clock, but a minimum of 5 clocks after the stop bit is required after any command has been issued to ensure that the corresponding internal logic actions have been completed. When reading register contents, there will be a 4-clock delay from the completion of the REGRead command before the register contents are output (see Figure 5). When reading out pixel values, there will be a 44-clock delay from completion of the READPixel command until the first pixel data is output. When starting integration (STARTInt), it is necessary to have 22 clocks to complete the pixel reset cycle (see Imaging below). The LUMENOLOGY r Company Copyright E 2011, TAOS Inc. r r www.taosinc.com 3 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 Register Address Map The TSL3301CL contains seven registers as defined in Table 2. Data in these registers may be written to or read from using the REGWrite and REGRead commands. Three registers control the gain of the analog-to-digital converters (ADC). Three other registers allow the offset of the system to be adjusted. Together the gain and offset registers are used to maximize the achievable dynamic range. Table 2. Register Address Map ADDRESS REGISTER DESCRIPTION REGISTER WIDTH 0x00 Left (pixels 0-33) offset 8 0x01 Left (pixels 0-33) gain 5 0x02 Center (pixels 34-67) offset 8 0x03 Center (pixels 34-67) gain 5 0x04 Right (pixels 68-101) offset 8 0x05 Right (pixels 68-101) gain 5 0x1F Mode 8 The offset registers are 8-bit sign-magnitude values and the gain registers are 5-bit values. The programmed offset correction is applied to the sampled energy, and then the gain is applied. (i.e., the gain will affect the offset correction.) These registers allow the user to maximize the dynamic range achievable in the given system. The last register is the mode register. Bits in this register select the sleep mode as well as options for multichip arrays and production testing. Note that test and multichip options do not apply to the 8-pin packaged device. Users should always write 0s into the production test and multichip control bits. 0x1F 7 6 5 4 3 2 1 0 P2 0 0 SLP P1 P0 C1 C0 SLP = Sleep Mode: 1 places device into sleep mode MODE C1, C0 are Reserved (should be written 0) P2 to P0 are factory test bits (should be written 0) 0 places device in normal operating mode Figure 1. Mode Register Bit Assignments Copyright E 2011, TAOS Inc. The LUMENOLOGY r Company r r 4 www.taosinc.com TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 Command Description The TSL3301CL is a slave device that reacts strictly to commands received from the digital controller. These commands cause the device to perform functions such as reset, integrate, sample, etc. Table 3 summarizes the command types and formats and Table 4 lists the command set for the TSL3301CL. Each command is described in more detail below. Table 3. Command Type and Format Summary COMMAND TYPE FORMAT Action command < Command byte > Register write < Command byte > < Data byte > Table 4. TSL3301CL Command Set COMMAND HEX CODE DESCRIPTION IRESET SDIN held low for 30 clocks RESET 0x1B Reset Integration and read blocks STARTInt 0x08 Start pixel integration SAMPLEInt 0x10 Stop light integration and sample results READPixel 0x02 Dump serial the contents of each sampled integrator ABORTPixel 0x19 Abort any READPixel operation in progress READHold 0x12 Combination of SAMPLEInt and READPixel commands READHoldNStart 0x16 Combination of SAMPLEInt, READPixel and STARTInt commands Interface Reset REGWrite 0x40 + address Write a gain, offset, or mode register REGRead 0x60 + address Read a gain, offset, or mode register The LUMENOLOGY r Company Copyright E 2011, TAOS Inc. r r www.taosinc.com 5 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 PROGRAMMING INFORMATION A minimum of 5 clock cycles after the stop bit is required after any command to ensure that the internal logic actions have been completed. Reset Commands Reset commands are used to put the TSL3301CL into a known state. IRESET -- Interface Initialization Encoding: Break Character (10 or more consecutive start bits, or zeros) The commands vary in length from one to three bytes. IRESET initializes the internal state machine that keeps track of which command bytes have been received. This command should be first and given only once after power-up to synchronize the TSL3301CL internal command interpreter. An alternative is to issue three successive RESET commands. RESET -- Main Reset Encoding: 0x1b: <0001_1011> RESET resets most of the internal control logic of the TSL3301CL and any READPixel command currently in progress is aborted. RESET puts the pixel integrators into the auto-zero/reset state. Any values that were being held in the array's sample/hold circuits are lost. NOTE: The value on the SDOUT pin is not guaranteed from the time power is applied until 30 clocks after the first RESET command is issued. Pixel Action Commands Pixel action commands allow the user to control pixel integration and reading of pixel data. STARTInt -- Start Integration Encoding: 0x08: <0000_1000> STARTInt causes each pixel to leave the reset state and to start integrating light. The actual execution of STARTInt is delayed 22 clock cycles until the pixel reset cycle has been completed. (See imaging below.) SAMPLEInt -- Stop Integration Encoding: 0x10: <0001_0000> SAMPLEInt causes each pixel to store its integrator's contents into a sample and hold circuit. Also, the Integrator is returned to the reset state. READPixel -- Read Pixel Data Encoding: 0x02: <0000_0010> READPixel causes the sampled value of each pixel to be converted to an 8-bit digital value that is clocked out on the SDOUT pin. The LSB is the first data bit, which is preceded by a START bit (logic 0) and followed by a STOP bit (logic 1). Each pixel in the device is presented on SDOUT starting from pixel 00 and completes with pixel 101. There is a 44-clock cycle delay from the completion of the READPixel command until the first pixel data is output. Gain and offset registers are used to adjust the ADC converter to maximize dynamic range and should be programmed prior to invoking the READPixel command. Copyright E 2011, TAOS Inc. The LUMENOLOGY r Company r r 6 www.taosinc.com TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 ABORTPixel -- Abort Pixel Data Read Encoding: 0x19: <0001_1001> ABORTPixel is an optional command that stops a READPixel command during its execution. It also causes pixel integration to terminate and the device to enter the auto-zero/reset state. Any values that were being held in the array's sample/hold circuits are lost. READHold -- Sample and Read Combination Encoding: 0x12: <0001_0010> READHold is a macro command that combines both the SAMPLEInt and READPixel commands into a single command. READHoldNStart Combination Encoding: 0x16: <0001_0110> READHold is a macro command that combines the SAMPLEInt, READPixel, and StartInt commands into a single command. 22 clock cycles are necessary to complete the pixel reset cycle. Register Commands The register commands provide the user the capability of setting gain and offset corrections for each of the three zones of pixels. a4-a0 refer to the register address as given in Table 2. REGWrite -- Write a Gain/Offset/Mode Register Encoding (2 bytes): 0x40 <data>: <010a4_a3a2a1a0> <d7d6d5d4_d3d2d1d0> REGWrite writes a value into either a gain, offset, or mode register. The 5-bit address of the register is encoded into the lower 5 bits of the command byte (the first byte). A second byte, which contains the data to be written, follows the command byte. REGRead -- Read a Gain/Offset/Mode Register Encoding: 0x60: <011a4_a3a2a1a0> REGRead reads the value previously stored in a gain, offset, or mode register. The 5-bit address of the register is encoded into the lower 5 bits of the command byte. Following receipt of the REGRead command, the device places the contents of the selected register onto the SDOUT pin, LSB first. There is a 4-clock cycle delay from the completion of the REGRead command until the register contents are output. The LUMENOLOGY r Company Copyright E 2011, TAOS Inc. r r www.taosinc.com 7 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 OPERATION Initialization Sequence After powering on the device, a minimum of 10 clocks with SDIN held high must be received by the TSL3301CL to clear the receiver logic so that a start bit will be detected correctly. The control logic may then be cleared by either issuing an IRESET command (break character) or 3 RESET (0x1b) commands. An additional 30 clocks must be received by the device to assure the state of SDOUT. Sleep Mode The device can be put into a power down or sleep mode by writing a 0x10 to the mode register. This turns off all the analog circuitry on the chip. Normal operation is restored by writing a 0x00 to the mode register. The analog circuitry will require a minimum of 1 millisecond to recover from the sleep mode. Note that putting the device in the sleep mode does not affect the logic states of the machine. If, for example, a READPixel command is issued, the device will respond but the resulting data will be meaningless. Also note that 0x00 and 0x10 are the only two legitimate user programmable values for the single-chip version of the TSL3301CL. Other values may put the device into a non-operational mode. For minimum sleep mode current consumption, voltage levels on logic inputs must be at either VDD or ground. Imaging After powering up the device and completing the initialization sequence, it is necessary to allow a minimum of 1 millisecond for the internal analog circuitry to settle. This delay is also required when coming out of the sleep mode. Issuing a STARInt (0x08) command will release the pixel integrators from the reset state. After an appropriate delay to integrate the image, the pixel data may be sampled by issuing a SAMPLEInt (0x10) command and then read out by issuing a READPixel (0x02) command. A STARTInt command can be issued anytime after the SAMPLEInt command is issued to start another cycle. Thus, it is possible to be reading out one sample while integrating the next. However, the sampled data from the previous SAMPLEInt must be completely read out before the next SAMPLEInt command is issued. The compound commands READHold (0x12) and READHoldNStart ((0x16) are shortcut commands to simplify the imaging sequence. It is important to note that a pixel reset sequence is initiated with the receipt of a STARTInt or READHoldNStart command. The next integration sequence cannot start until the pixel reset sequence has been completed, which requires 22 clocks AFTER the receipt of one of these commands. These clocks can also be used to clock commands or data into or out of the device. Copyright E 2011, TAOS Inc. The LUMENOLOGY r Company r r 8 www.taosinc.com TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 Absolute Maximum Ratings over operating free-air temperature (unless otherwise noted) Supply voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V Digital output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to VDD +0.3 V Digital output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10 to +10 mA Digital input current range, II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 mA to 20 mA Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25C to 85C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -25_C to 85_C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260C ESD tolerance, human body model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 V Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Not recommended for solder reflow. Recommended Operating Conditions MIN NOM Supply voltage, VDD 3 5 High-level input voltage at SCLK, SDIN, VIH 2 MAX UNIT 5.5 V VDD V Low-level input voltage at SCLK, SDIN, VIL 0.8 V Power supply ripple, 100 kHz sawtooth waveform 60 mVp-p Input clock (SCLK) rise time, 10% to 90% 30 ns Operating junction temperature, TJ 0 Maximum clock frequency, fSCLK 70 C 10 MHz Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VDD = 5 V VOH High level output voltage, High-level voltage SDOUT VDD = 3 3.3 3V VOL Low level output voltage, Low-level voltage SDOUT IDD Supply current IO = 50 A MIN TYP 4.5 4.95 IO = 4 mA 4.6 IO = 50 A 2.9 IO = 4 mA MAX UNIT V 2.7 IO = 50 A 0.01 IO = 4 mA 0.4 A/D active 11 17 6 11 A/D inactive Sleep mode 0.1 V mA 10 0.8 V VIL Low-level input voltage (SCLK, SDIN) VIH High-level input voltage (SCLK, SDIN) IIH High-level input current (SCLK, SDIN) VI = VDD 10 IIL Low-level input current (SCLK, SDIN) VI = 0 10 The LUMENOLOGY r Company 2 V Copyright E 2011, TAOS Inc. r r www.taosinc.com 9 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 Light-to-Digital Transfer Characteristics at VDD = 5 V, TJ = 25C, p = 660 nm, tint = 250 s (unless otherwise noted) PARAMETER TEST CONDITIONS MIN A-to-D converter resolution TYP MAX 8 Full scale reference Full-scale Gain register = 00000b 3.6 Gain register = 11111b 1.24 For converter only, does not include photodiode characteristics Full-scale reference temperature sensitivity Gain register = 00000b Average dark-level dark level offset Gain register = 11111b 0 Average white level output 7 5 Gain register = 11111b, see Note 1 Gain register = 00000b Ee = 11.3 W/cm2 Offset register = 00000000b ppm/C 30 LSB 10 14 160 200 LSB 240 LSB Gain register = 11111b Ee = 3.77 W/cm2 200 Ee = 11.3 W/cm2, See Notes 2 and 3 Pixel-response non-uniformity (PRNU) nJ/cm 2 20 Gain register = 00000b, see Note 1 Dark signal nonuniformity (DSNU) Bits 150 Offset register = 00000000b UNIT 8 10 % 128 Programmable offset steps Programmable offset step size Gain register = 00000b 0.5 Gain register = 11111b 1.5 Dark-level change with temperature 0C < TJ < 70C Differential nonlinearity Integral nonlinearity Dark level noise LSB 2 LSB 0.5 LSB 1 LSB Gain register = 00000b 0.5 Gain register = 11111b 1.5 LSB NOTES: 1. DSNU is the difference between the highest value pixel and the lowest value pixel of the device under test when the array is not illuminated. 2. PRNU does not include DSNU. 3. PRNU is the difference between the highest value pixel and the lowest value pixel of the device under test when the array is uniformly illuminated at nominal white level (typical average output level = 200). Timing Requirements over recommended operating range (unless otherwise noted) (Figure 2) MIN NOM MAX UNIT fmax Maximum clock frequency 10 MHz tw(CLKH) Clock high pulse duration 30 ns tw(CLKL) Clock low pulse duration 30 ns tsu Input setup time 20 ns th Input hold time 20 ns Switching Characteristics over recommended operating range (unless otherwise noted) (Figure 3) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tr Rise time, output tf Fall time, output td Delay from clock edge to data-out stable 20 ns Ci Input pin capacitance 10 pF Copyright E 2011, TAOS Inc. CL = 20 pF ns 10 ns The LUMENOLOGY r Company r r 10 10 www.taosinc.com TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 TYPICAL CHARACTERISTICS VIH tw(CLKH) SCLK tw(CLKL) VIL th tsu VIH SDIN VIL Figure 2. TSL3301CL Input Timing Requirements VIH SCLK VIL td VOH SDOUT VOL Figure 3. TSL3301CL Output Switching Characteristics SCLK SDIN Start B0 B2 B1 B3 B4 B5 B6 B7 Stop Serial Input Data Format SCLK SDOUT Start B0 B1 B2 B3 B4 B6 B5 B7 Stop Serial Output Data Format Figure 4. TSL3301CL Serial I/O The LUMENOLOGY r Company Copyright E 2011, TAOS Inc. r r www.taosinc.com 11 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 TYPICAL CHARACTERISTICS SCLK 1 SDIN B7 2 3 4 Stop END of REGRead Command SDOUT Start B0 Beginning of Output Response Figure 5. TSL3301CL REGRead Output Response Timing PHOTODIODE SPECTRAL RESPONSIVITY 1.2 Normalized to 660 nm TA = 25C Relative Responsivity 1.0 0.8 0.6 0.4 0.2 0 300 500 700 900 - Wavelength - nm 1100 Figure 6. TSL3301CL Photodiode Spectral Response Copyright E 2011, TAOS Inc. The LUMENOLOGY r Company r r 12 www.taosinc.com TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 APPLICATION INFORMATION Normal Sequence A typical programming sequence for the TSL3301CL device appears below: Send(IRESET); Send(RESET); Calibration Cycle * * while(1) { for(i=0;i<=2;i++) {/* for each pixel page */ Write page gain register Write page offset register Read page gain register and verify (optional) Read page offset register and verify (optional) } } Send(STARTInt); DelayIntegrationTime(); /* wait for appropriate time interval to elapse */ Send(SAMPLEInt); Send(READPixel); The LUMENOLOGY r Company Copyright E 2011, TAOS Inc. r r www.taosinc.com 13 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 APPLICATION INFORMATION: HARDWARE PCB Pad Layout Suggested PCB pad layout guidelines for the CL package are shown in Figure 7. Pin 1 1.3 1.4 2.5 0.8 0.8 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. Figure 7. Suggested CL Package PCB Layout Copyright E 2011, TAOS Inc. The LUMENOLOGY r Company r r 14 www.taosinc.com TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 PACKAGE INFORMATION TOP VIEW 0.085 (Note B) 3.0 0.2 Pin 1 8.573 (Note B) Photodiode Array (Not to Scale) 9.4 0.2 SIDE VIEW END VIEW 0.22 1.2 0.2 BOTTOM VIEW CL of Solder Contact CL of Pixel 7 (Note C) Photodiode Array (Not to Scale) 0.011 Nominal Pin 1 0.95 0.8 0.95 0.37 Nominal 0.6 CL of Package 1.8 CL of Photodiode Array Area (Note C) 0.6 2.5 1.0 Pb 7.5 0.08 NOTES: A. All linear dimensions are in millimeters. Dimension tolerance is 0.05 mm unless otherwise noted. B. Nominal photodiode array dimension. The array is made up of 100 inner pixels and 2 end pixels with pixel #1 closer to Pin 1. The inner pixel is 77 m wide by 85 m high, spaced on 85m centers. The end pixel is 49m wide by 132 m high. C. The die is centered within the package within a tolerance of 0.05 mm. D. Package top surface is molded with an electrically nonconductive clear plastic compound having an index of refraction of 1.56. E. Contact finish is soft gold plated. F. This package contains no lead (Pb). G. This drawing is subject to change without notice. Figure 8. Package CL Configuration The LUMENOLOGY r Company Copyright E 2011, TAOS Inc. r r www.taosinc.com 15 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 CARRIER TAPE AND REEL INFORMATION TOP VIEW 2.00 4.00 8.00 1.50 + 0.10 - 0.00 1.75 B 16.00 + 0.30 - 0.10 7.50 1.50 + 0.25 - 0.00 A A DETAIL B DETAIL A 8 Max 7 Max 0.30 0.02 3.45 Ao NOTES: A. B. C. D. E. F. G. B 9.85 1.53 Bo Ko All linear dimensions are in millimeters. Dimension tolerance is 0.10 mm unless otherwise noted. The dimensions on this drawing are for illustrative purposes only. Dimensions of an actual carrier may vary slightly. Symbols on drawing Ao, Bo, and Ko are defined in ANSI EIA Standard 481-B 2001. Each reel is 178 millimeters in diameter and contains 1000 parts. TAOS packaging tape and reel conform to the requirements of EIA Standard 481-B. In accordance with EIA standard, device pin 1 is located next to the sprocket holes in the tape. This drawing is subject to change without notice. Figure 9. Package CL Carrier Tape Copyright E 2011, TAOS Inc. The LUMENOLOGY r Company r r 16 www.taosinc.com TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 SOLDERING INFORMATION The CL package has been tested and has demonstrated an ability to be reflow soldered to a PCB substrate. The solder reflow profile describes the expected maximum heat exposure of components during the solder reflow process of product on a PCB. Temperature is measured on top of component. The components should be limited to a maximum of three passes through this solder reflow profile. Table 5. Solder Reflow Profile PARAMETER REFERENCE DEVICE Average temperature gradient in preheating Soak time 2.5C/sec tsoak 2 to 3 minutes Time above 217C (T1) t1 Max 60 sec Time above 230C (T2) t2 Max 50 sec Time above Tpeak -10C (T3) t3 Max 10 sec Peak temperature in reflow Tpeak 260C Temperature gradient in cooling Tpeak Max -5C/sec Not to scale -- for reference only T3 T2 Temperature (C) T1 Time (sec) t3 t2 tsoak t1 Figure 10. Solder Reflow Profile Graph The LUMENOLOGY r Company Copyright E 2011, TAOS Inc. r r www.taosinc.com 17 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 STORAGE INFORMATION Moisture Sensitivity Optical characteristics of the device can be adversely affected during the soldering process by the release and vaporization of moisture that has been previously absorbed into the package. To ensure the package contains the smallest amount of absorbed moisture possible, each device is dry-baked prior to being packed for shipping. Devices are packed in a sealed aluminized envelope called a moisture barrier bag with silica gel to protect them from ambient moisture during shipping, handling, and storage before use. The CL package has been assigned a moisture sensitivity level of MSL 5a and the devices should be stored under the following conditions: Temperature Range Relative Humidity Total Time Opened Time 5C to 50C 60% maximum 6 months from the date code on the aluminized envelope -- if unopened 24 hours or fewer Rebaking will be required if the devices have been stored unopened for more than 6 months or if the aluminized envelope has been open for more than 24 hours. If rebaking is required, it should be done at 60C for 24 hours. Copyright E 2011, TAOS Inc. The LUMENOLOGY r Company r r 18 www.taosinc.com TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 PRODUCTION DATA -- information in this document is current at publication date. Products conform to specifications in accordance with the terms of Texas Advanced Optoelectronic Solutions, Inc. standard warranty. Production processing does not necessarily include testing of all parameters. LEAD-FREE (Pb-FREE) and GREEN STATEMENT Pb-Free (RoHS) TAOS' terms Lead-Free or Pb-Free mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TAOS Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br) TAOS defines Green to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material). Important Information and Disclaimer The information provided in this statement represents TAOS' knowledge and belief as of the date that it is provided. TAOS bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TAOS has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TAOS and TAOS suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. NOTICE Texas Advanced Optoelectronic Solutions, Inc. (TAOS) reserves the right to make changes to the products contained in this document to improve performance or for any other purpose, or to discontinue them without notice. Customers are advised to contact TAOS to obtain the latest product information before placing orders or designing TAOS products into systems. TAOS assumes no responsibility for the use of any products or circuits described in this document or customer product design, conveys no license, either expressed or implied, under any patent or other right, and makes no representation that the circuits are free of patent infringement. TAOS further makes no claim as to the suitability of its products for any particular purpose, nor does TAOS assume any liability arising out of the use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS, INC. PRODUCTS ARE NOT DESIGNED OR INTENDED FOR USE IN CRITICAL APPLICATIONS IN WHICH THE FAILURE OR MALFUNCTION OF THE TAOS PRODUCT MAY RESULT IN PERSONAL INJURY OR DEATH. USE OF TAOS PRODUCTS IN LIFE SUPPORT SYSTEMS IS EXPRESSLY UNAUTHORIZED AND ANY SUCH USE BY A CUSTOMER IS COMPLETELY AT THE CUSTOMER'S RISK. LUMENOLOGY, TAOS, the TAOS logo, and Texas Advanced Optoelectronic Solutions are registered trademarks of Texas Advanced Optoelectronic Solutions Incorporated. The LUMENOLOGY r Company Copyright E 2011, TAOS Inc. r r www.taosinc.com 19 TSL3301CL 102 x 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOG-TO-DIGITAL CONVERTER TAOS141 - JULY 2011 Copyright E 2011, TAOS Inc. The LUMENOLOGY r Company r r 20 www.taosinc.com