Wideband 2.5 GHz, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T ADG904/ADG904-R Data Sheet FEATURES FUNCTIONAL BLOCK DIAGRAMS Wideband switch: -3 dB @ 2.5 GHz ADG904: absorptive 4:1 mux/SP4T ADG904-R: reflective 4:1 mux/SP4T High off isolation (37 dB @ 1 GHz) Low insertion loss (1.1 dB dc to 1 GHz) Single 1.65 V to 2.75 V power supply CMOS/LVTTL control logic 20-lead TSSOP and 4 mm x 4 mm LFCSP packages Low power consumption (1 A maximum) Qualified for automotive applications ADG904 ADG904-R RF1 RF1 50 RF2 RF2 50 RF3 RF3 50 APPLICATIONS A0 -37 dB off isolation @ 1 GHz 2. 1.1 dB insertion loss @ 1 GHz 3. 20-lead TSSOP/LFCSP packages INSERTION LOSS (dB) S12 10M 100M FREQUENCY (Hz) 1G 10G 04504-0-028 INSERTION LOSS (dB) S21 -60 Figure 3. Off Isolation vs. Frequency Rev. C EN Figure 2. 1. -20 -50 A1 PRODUCT HIGHLIGHTS VDD = 2.5V -40 A0 The parts have on-board CMOS control logic, which eliminates the need for external control circuitry. The control inputs are both CMOS and LVTTL compatible. The low power consumption of these devices makes them ideally suited for wireless applications and general-purpose high frequency switching. -10 -30 1 OF 4 DECODER -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1.0 -1.1 -1.2 -1.3 -1.4 -1.5 -1.6 -1.7 -1.8 -1.9 -2.0 -2.1 -2.2 -2.3 -2.4 -2.5 -2.6 -2.7 -2.8 VDD = 2.5V -2.9 TA = 25C -3.0 10k 100k 1M 10M 100M FREQUENCY (Hz) 1G 10G 04504-0-029 The ADG904 and ADG904-R switch one of four inputs to a common output, RFC, as determined by the 3-bit binary address lines A0, A1, and EN. A Logic 1 on the EN pin disables the device. 1M EN Figure 1. The ADG904 and ADG904-R are wideband analog 4:1 multiplexers that use a CMOS process to provide high isolation and low insertion loss to 1 GHz. The ADG904 is an absorptive/matched mux with 50 terminated shunt legs; the ADG904-R is a reflective mux. These devices are designed such that the isolation is high over the dc to 1 GHz frequency range. 100k A1 04504-0-012 1 OF 4 DECODER 04504-0-001 50 GENERAL DESCRIPTION -80 10k RF4 RF4 Wireless communications General-purpose RF switching Dual-band applications High speed filter selection Digital transceiver front end switch IF switching Tuner modules Antenna diversity switching -70 RFC RFC Figure 4. Insertion Loss vs. Frequency Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 (c)2004-2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com Powered by TCPDF (www.tcpdf.org) IMPORTANT LINKS for the ADG904_904R* Last content update 08/16/2013 12:48 pm PARAMETRIC SELECTION TABLES Choosing the Correct Switch or Multiplexer for Your Application Switches and Multiplexers Product Selection Guide Multiplexer Parametric Search DESIGN COLLABORATION COMMUNITY Collaborate Online with the ADI support team and other designers about select ADI products. Follow us on Twitter: www.twitter.com/ADI_News Like us on Facebook: www.facebook.com/AnalogDevicesInc DOCUMENTATION AN-952: ADG9xx Wideband CMOS Switches: Frequently Asked Questions CN-0211: IF Band-Pass Filter Bank Switching Network for Wireless Infrastructure Use Circuits from the LabTM in Your Next Design CMOS Switches Offer High Performance in Low Power, Wideband Applications RF Source Booklet PRODUCT RECOMMENDATIONS & REFERENCE DESIGNS CN-0211: IF Band-Pass Filter Bank Switching Network for Wireless Infrastructure DESIGN SUPPORT Submit your support request here: Linear and Data Converters Embedded Processing and DSP Telephone our Customer Interaction Centers toll free: Americas: Europe: China: India: Russia: 1-800-262-5643 00800-266-822-82 4006-100-006 1800-419-0108 8-800-555-45-90 Quality and Reliability Lead(Pb)-Free Data EVALUATION KITS & SYMBOLS & FOOTPRINTS View the Evaluation Boards and Kits page for ADG904 View the Evaluation Boards and Kits page for ADG904-R Symbols and Footprints SAMPLE & BUY ADG904/ADG904-R View Price & Packaging Request Evaluation Board Request Samples Check Inventory & Purchase Find Local Distributors * This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to the content on this page (labeled 'Important Links') does not constitute a change to the revision number of the product data sheet. This content may be frequently modified. ADG904/ADG904-R Data Sheet TABLE OF CONTENTS Specifications..................................................................................... 3 Absorptive vs. Reflective ........................................................... 11 Absolute Maximum Ratings ............................................................ 4 Antenna Diversity Switch .......................................................... 11 ESD Caution .................................................................................. 4 Filter Selection ............................................................................ 11 Pin Configurations and Function Descriptions ........................... 5 Tx/Rx Switching ......................................................................... 11 Terminology ...................................................................................... 6 Evaluation Board ............................................................................ 12 Typical Performance Characteristics ............................................. 7 Outline Dimensions ....................................................................... 13 Test Circuits ....................................................................................... 9 Ordering Guide .......................................................................... 14 Applications ..................................................................................... 11 Automotive Products ................................................................. 14 REVISION HISTORY /13--Rev. B to Rev. C Changes to Features Section............................................................ 1 Changes to Figure 6 .......................................................................... 5 Updated Outline Dimensions ....................................................... 13 Changes to Ordering Guide .......................................................... 14 Added Automotive Product Section ............................................ 14 2/07--Rev. A to Rev. B Updated Outline Dimensions ....................................................... 13 Changes to Ordering Guide .......................................................... 14 8/05--Rev. 0 to Rev. A Added LFCSP Package ....................................................... Universal Changes to Specifications ................................................................ 3 Changes to Absolute Maximum Ratings ....................................... 4 Inserted New Figure 6 ...................................................................... 5 Changes to Table 4 ............................................................................ 5 Changes to Outline Dimensions................................................... 13 Changes to Ordering Guide .......................................................... 14 4/04--Revision 0: Initial Version Rev. C | Page 2 of 16 Data Sheet ADG904/ADG904-R SPECIFICATIONS VDD = 1.65 V to 2.75 V, GND = 0 V, Input Power = 0 dBm, all specifications TMIN to TMAX, unless otherwise noted. 1 Table 1. Parameter AC ELECTRICAL CHARACTERISTICS Operating Frequency 3 3 dB Frequency 4 Input Power4 Symbol Conditions 0 V dc bias 0.5 V dc bias DC to 100 MHz; VDD = 2.5 V 10% 500 MHz; VDD = 2.5 V 10% 1000 MHz; VDD = 2.5 V 10% 100 MHz 500 MHz 1000 MHz 100 MHz 500 MHz 1000 MHz DC to 100 MHz 500 MHz 1000 MHz DC to 100 MHz 500 MHz 1000 MHz 50% EN to 90% RF S21, S12 Isolation--RFC to RF1-RF4 S21, S12 Crosstalk S21, S12 Return Loss (On Channel)4 S11, S22 Return Loss (Off Channel)4 S11, S22 On Switching Time4 tON (EN) Off Switching Time tOFF (EN) 50% EN to 10% RF tTRANS tRISE tFALL P-1 dB IP3 50% Ax to 10% RF 10% to 90% RF 90% to 10% RF 1000 MHz 900 MHz/901 MHz, 4 dBm VINH VINH VINL VINL II VDD = 2.25 V to 2.75 V VDD = 1.65 V to 1.95 V VDD = 2.25 V to 2.75 V VDD = 1.65 V to 1.95 V 0 VIN 2.75 V CRF ON C f = 1 MHz f = 1 MHz IDD Digital inputs = 0 V or VDD Transition Time Rise Time4 Fall Time4 1 dB Compression4 Third-Order Intermodulation Intercept Video Feedthrough 5 DC ELECTRICAL CHARACTERISTICS Input High Voltage Input Low Voltage Input Leakage Current CAPACITANCE4 RF Port On Capacitance Digital Input Capacitance POWER REQUIREMENTS VDD Quiescent Power Supply Current B Version Typ 2 Max DC Insertion Loss 4 Min 51 35 30 50 35 30 21 18 15 18 16 18 26.5 10 GHz GHz dBm dBm dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB ns 13 16 ns 12 3 7.5 16 31 3 15 5 9 ns ns ns dBm dBm mV p-p 0.4 0.6 1.1 60 45 37 58 32 35 27 26 30 22 23 22 8.5 2 2.5 7 16 0.8 0.9 1.5 Unit 1.7 0.65 VCC 0.1 0.7 0.35 VCC 1 3 2 1.65 0.1 V V V V A pF pF 2.75 1 V A Temperature range B version: -40C to +85C. Typical values are at VDD = 2.5 V and 25C, unless otherwise stated. 3 Operating frequency is the point at which insertion loss degrades by 1.5 dB. 4 Guaranteed by design, not subject to production test. 5 Video feedthrough is the dc transience at the output of any port of the switch when the control voltage is switched from high to low or low to high in a 50 test setup, measured with 1 ns rise time pulses and 500 MHz bandwidth. 1 2 Rev. C | Page 3 of 16 ADG904/ADG904-R Data Sheet ABSOLUTE MAXIMUM RATINGS TA = 25C, unless otherwise noted. Table 2. Parameter VDD to GND Inputs to GND Continuous Current Input Power Operating Temperature Range Industrial (B Version) Storage Temperature Range Junction Temperature TSSOP Package JA Thermal Impedance LFCSP Package JA Thermal Impedance (4-Layer Board) Lead Temperature, Soldering (10 sec) IR Reflow, Peak Temperature (<20 sec) ESD 1 Rating -0.5 V to +4 V -0.5 V to VDD + 0.3 V 1 30 mA 18 dBm -40C to +85C -65C to +150C 150C 143C/W 30.4C/W 300C 235C 1 kV RFx off port inputs to ground = -0.5 V to VDD - 0.5 V. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Only one absolute maximum rating may be applied at any one time. Table 3. Truth Table A1 A0 X 0 0 1 1 X 0 1 0 1 1 EN 1 0 0 0 0 ON Switch 1 None RF1 RF2 RF3 RF4 Off switches have: 50 termination to GND (ADG904); shunt to GND (ADG904-R). ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. C | Page 4 of 16 Data Sheet ADG904/ADG904-R PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS 20 A0 19 A1 18 GND GND 6 17 GND RF1 GND GND RF3 RF2 16 GND TOP VIEW (Not to Scale) 15 GND RF3 7 14 RF4 GND 8 13 GND GND 9 12 GND RFC 10 11 GND 1 2 3 4 5 TOP VIEW (Not to Scale) 15 14 13 12 11 GND RF2 GND GND RF4 GND 6 GND 7 RFC 8 GND 9 GND 10 RF1 4 GND 5 ADG904 ADG904-R 04504-0-002 GND 3 NOTES 1. THE EXPOSED PAD IS TIED TO SUBSTRATE, VSS. Figure 5. 20-Lead TSSOP (RU-20) 04504-0-003 EN 1 VDD 2 20 19 18 17 16 GND VDD EN A0 A1 ADG904/ADG904-R Figure 6. 20-Lead 4 mm x 4mm LFCSP (CP-20-6) Table 4. Pin Function Descriptions Pin No. 20-Lead TSSOP 20-Lead LFCSP 1 18 Mnemonic EN 2 19 VDD 3, 5, 6, 8, 9, 11, 12, 13, 15, 16, 18 4 7 10 14 17 19 20 N/A 1, 3, 4, 6, 7, 9, 10, 12, 13, 15, 20 2 5 8 11 14 16 17 21 GND Function Active Low Digital Input. When high, the device is disabled and all switches are off. When low, Ax logic inputs determine On switches. Power Supply Input. These parts can be operated from 1.65 V to 2.75 V. VDD should be decoupled to GND. Ground Reference Point for All Circuitry on the Part. RF1 RF3 RFC RF4 RF2 A1 A0 EPAD RF1 Port. RF3 Port. Common RF Port for Switch. RF4 Port. RF2 Port. Logic Control Input. Logic Control Input. Exposed Pad. The exposed pad is tied to substrate, VSS. Rev. C | Page 5 of 16 ADG904/ADG904-R Data Sheet TERMINOLOGY Table 5. Parameter VDD IDD GND Ax VINL VINH IINL (IINH) CIN tON (EN) Description Most Positive Power Supply Potential. Positive Supply Current. Ground (0 V) Reference. Logic Control Input. Maximum Input Voltage for Logic 0. Minimum Input Voltage for Logic 1. Input Current of the Digital Input. Digital Input Capacitance. Delay between Applying the EN Control Input and the Output Switching On. tOFF (EN) Delay between Applying the EN Control Input and the Output Switching Off. tRISE tFALL tTRANS Off Isolation Insertion Loss Crosstalk P-1 dB Rise Time. Time for the RF signal to rise from 10% of the on level to 90% of the on level. Fall Time. Time for the RF signal to fall from 90% of the on level to 10% of the on level. Transition Time. Delay between applying the digital control input and the output switching on. The Attenuation between Input and Output Ports of the Switch when the Switch Control Voltage is in the Off Condition. The Attenuation between Input and Output Ports of the Switch when the Switch Control Voltage is in the On Condition. Measure of Unwanted Signal Coupled through from One Channel to Another as a Result of Parasitic Capacitance. 1 dB Compression Point. The RF input power level at which the switch insertion loss increases by 1 dB over its low level value. P-1 dB is a measure of how much power the on switch can handle before the insertion loss increases by 1 dB. Third-Order Intermodulation Intercept. This is a measure of the power in false tones that occur when closely spaced tones are passed through a switch, and the nonlinearity of the switch causes these false tones to be generated. The Amount of Reflected Power Relative to the Incident Power at a Port. Large return loss indicates good matching. By measuring return loss, the voltage standing wave ratio (VSWR) can be calculated from conversion charts. VSWR indicates the degree of matching present at a switch RF port. Spurious Signals Present at the RF Ports of the Switch when the Control Voltage Is Switched from High to Low or Low to High without an RF Signal Present. IP3 Return Loss Video Feedthrough Rev. C | Page 6 of 16 Data Sheet ADG904/ADG904-R VDD = 2.75V VDD = 2.50V 1M 10M 100M FREQUENCY (Hz) 1G 10G -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1.0 -1.1 -1.2 -1.3 -1.4 -1.5 -1.6 -1.7 -1.8 -1.9 -2.0 -2.1 -2.2 -2.3 -2.4 -2.5 -2.6 -2.7 -2.8 -2.9 VDD = 2.5V -3.0 10k 100k Figure 7. Insertion Loss vs. Frequency over Supplies (RF1-RF4, S12, and S21) TA = -40C TA = +25C TA = +85C 1M 10M 100M FREQUENCY (Hz) 1G 10G 04504-0-016 VDD = 2.25V INSERTION LOSS (dB) -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1.0 -1.1 -1.2 -1.3 -1.4 -1.5 -1.6 -1.7 -1.8 -1.9 -2.0 -2.1 -2.2 -2.3 -2.4 -2.5 -2.6 -2.7 -2.8 -2.9 TA = 25C -3.0 10k 100k 04504-0-015 INSERTION LOSS (dB) TYPICAL PERFORMANCE CHARACTERISTICS Figure 10. Insertion Loss vs. Frequency over Temperature ((RF1-RF4, S12, and S21) -0.3 -10 -0.4 -20 VDD = 1.65V TO 2.75V -30 VDD = 2.50V -0.6 INSERTION LOSS (dB) VDD = 2.75V -0.7 VDD = 2.25V -0.8 -0.9 -40 -50 S21 -60 -70 S12 -80 -1.0 100k 1M 10M 100M FREQUENCY (Hz) 1G 10G -100 10k -10 10M 100M FREQUENCY (Hz) 1G 10G 10G VDD = 2.5V -20 -30 VDD = 1.65V INSERTION LOSS (dB) -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1.0 -1.1 -1.2 -1.3 -1.4 -1.5 -1.6 -1.7 -1.8 -1.9 -2.0 -2.1 -2.2 -2.3 -2.4 -2.5 -2.6 -2.7 -2.8 -2.9 TA = 25C -3.0 10k 100k 1M Figure 11. Isolation vs. Frequency over Supplies (RF1-RF4, S12, and S21) VDD = 1.80V VDD = 1.95V -40 TA =+85C -50 -60 TA =+25C -70 -80 -90 1M 10M 100M FREQUENCY (Hz) 1G 10G 04504-0-013 INSERTION LOSS (dB) Figure 8. Insertion Loss vs. Frequency over Supplies (RF1-RF4, S12, and S21). Zoomed Figure 7 Plot 100k 04504-0-017 -1.1 10k 04504-0-014 -90 TA = 25C 04504-0-018 INSERTION LOSS (dB) -0.5 Figure 9. Insertion Loss vs. Frequency over Supplies (RF1-RF4, S12, and S21) -100 10k TA = -40C 100k 1M 10M 100M FREQUENCY (Hz) 1G Figure 12. Isolation vs. Frequency over Temperature (RF1-RF4, S12, and S21) Rev. C | Page 7 of 16 ADG904/ADG904-R Data Sheet 0 [T] TRIG'D : 2.40mV T -5 INSERTION LOSS (dB) A0 -10 -15 1 -20 OFF SWITCH 3 -25 RFC ON SWITCH 1M 10M 100M FREQUENCY (Hz) 1G 10G CH1 1.00V CH3 1.00mV M 20.0ns Figure 16. Video Feedthrough Figure 13. Return Loss vs. Frequency (RF1-RF4, S11) -10 35 -20 30 -30 25 -40 20 IP3 (dB) -50 -60 15 10 -70 5 100k 1M 10M 100M FREQUENCY (Hz) 1G 10G 0 100 200 Figure 14. Crosstalk vs. Frequency TEK RUN: 5.00GS/s ET ENVELOPE [ 300 400 500 600 FREQUENCY (MHz) 700 800 900 04504-0-019 -80 10k VDD = 2.5V TA = 25C 04504-0-025 VDD = 2.5V TA = 25C 1500 04503-0-025 CROSSTALK (dB) 04504-0-027 VDD = 2.5V TA = 25C -35 10k 100k 04504-0-020 -30 Figure 17. IP3 vs. Frequency 18 ] T 16 A1 14 P-1dB (dBm) 12 1 3 RF1/3 10 8 6 4 VDD = 5V VA = 5V VB = 0V 2 VDD = 2.5V TA = 25C 0 1.00V 100mV Ch2 100mV M 5.00ns 0 04504-0-026 CH1 CH3 250 500 750 1000 FREQUENCY (MHz) Figure 18. P-1 dB vs. Frequency Figure 15. Switch Timing Rev. C | Page 8 of 16 1250 Data Sheet ADG904/ADG904-R TEST CIRCUITS VDD 10F VOUT VDD VDD RL 50 ADG904R RFx VDD VOUT 50% VS RL 50 Ax 50% RF2 VAx 90% VOUT GND 10% tON tOFF 50 VS 1 0F 4 DECODER GND 04504-0-004 RFx RFC NETWORK ANALYZER 50 RFC A0 A1 EN VOUT VS INSERTION LOSS = 20log Figure 19. Switch Timing: tON, tOFF 04504-0-007 10F Figure 22. Insertion Loss VDD 10F VDD 10F VDD RF1 VDD VOUT 50% 50% 50 VAx VOUT RF2 90% 10% 90% RL 50 10% VOUT 1 0F 4 DECODER tRISE GND 04504-0-005 GND tFALL A0 A1 Figure 20. Switch Timing: tRISE, tFALL EN CROSSTALK = 20log 04504-0-008 RL 50 Ax VOUT VS Figure 23. Crosstalk VDD VDD 10F 10F 50 VDD ADG904R RF1 RL 50 RFC VS VDD RF2 50 RFx NETWORK ANALYZER RF2 EN OFF ISOLATION = 20log VOUT VS 04504-0-006 GND Figure 21. Off Isolation NC 1 0F 4 DECODER GND A0 A1 EN Figure 24. Video Feedthrough Rev. C | Page 9 of 16 NC RFC 1 0F 4 DECODER A1 ADG904R VOUT OSCILLOSCOPE A0 VS 04504-0-009 VS 50 RFC RFx RFC NETWORK ANALYZER ADG904R ADG904/ADG904-R Data Sheet VDD VDD 10F 10F ADG904R VDD 50 RF2 GND A0 A1 RF1 RF SOURCE SPECTRUM ANALYZER EN COMBINER RF2 Figure 25. IP3 RF SOURCE VS 1 0F 4 DECODER GND A0 A1 EN Figure 26. P-1 dB Rev. C | Page 10 of 16 50 RFC RF SOURCE 1 0F 4 DECODER ADG904R 04504-0-011 RF1 SPECTRUM RFC ANALYZER 04504-0-010 VDD Data Sheet ADG904/ADG904-R APPLICATIONS The ADG904 and ADG904-R are ideal solutions for low power, high frequency applications. The low insertion loss, high isolation between ports, low distortion, and low current consumption of these parts make them excellent solutions for many high frequency switching applications. They may be used in applications such as switchable filters, transmitters and receivers for radar systems, and communications systems from base stations to cell phones. ABSORPTIVE VS. REFLECTIVE The ADG904 is an absorptive (matched) switch with 50 terminated shunt legs; the ADG904-R is a reflective switch with 0 terminated shunts to ground. The ADG904 absorptive switch has a good VSWR on each port, regardless of the switch mode. An absorptive switch should be used when there is a need for a good VSWR that is looking into the port but not passing the through signal to the common port. The ADG904 is therefore ideal for applications that require minimum reflections back to the RF source. It also ensures that the maximum power is transferred to the load. The ADG904-R reflective switch is suitable for applications where high off port VSWR does not matter, and the switch has other performance features. It may be used in many applications, including high speed filter selection. In most cases, an absorptive switch may be used instead of a reflective switch, but not vice versa. RF1 CABLE RF2 TUNER ADG904 ANTENNA 04504-0-021 RF3 RF4 Figure 27. Tuner Modules FILTER SELECTION The ADG904 can be used to switch high frequency signals between different filters and to multiplex the signal to the output. These SP4T switches are also ideal for high speed signal routing. RFIN RFC RF1 RF1 RF2 RF2 ADG904 ADG904 RF3 RF3 RF4 RF4 RFC RFOUT 04504-0-022 The ADG9xx wideband switches are designed to meet the demands of devices that transmit at ISM band frequencies of 1 GHz and higher. The low insertion loss, high isolation between ports, single pin control interface, no requirement for dc blocking capacitors, and TTL interface compatibility of these parts make them cost-effective and an easy-to-integrate switching solution for many high frequency switching applications and low power applications where the parts can handle up to 16 dBm of power. VGA Figure 28. Filter Selection Tx/Rx SWITCHING The low insertion loss and high isolation between ports ensure that the ADG904 and ADG904-R are suitable transmit/receive switches for all ISM band and wireless LAN, providing the required isolation between the transmit signal and the receive signal. Rx Rx ANTENNA Tx ADG904 The ADG904 is ideal for use as an antenna diversity switch, switching different antennas into the tuner. The low insertion loss ensures minimum signal loss and high isolation between channels, making these SP4T switches suitable for switching applications in tuner modules and set-top boxes. Rev. C | Page 11 of 16 Rx Figure 29. Tx/Rx Switching 04504-0-023 Rx ANTENNA DIVERSITY SWITCH ADG904/ADG904-R Data Sheet EVALUATION BOARD The ADG904/ADG904-R evaluation board allows designers to evaluate the high performance, wideband switches with minimal effort. The RFC port (see Figure 30) is connected through a 50 transmission line to the bottom left SMA connector, J4. RF1, RF2, RF3, and RF4 are connected through 50 transmission lines to SMA connectors J5, J6, J7, and J8, respectively. A through transmission line connects J9 and J10; this transmission line is used to estimate the loss of the PCB over the environmental conditions being evaluated. The board is constructed of four-layer, FR4 material with a dielectric constant of 4.3 and an overall thickness of 0.062 inches. Two ground layers with grounded planes provide ground for the RF transmission lines. The transmission lines were designed using a coplanar waveguide with a ground plane model using a trace width of 0.024 inches, clearance to ground plane of 0.008 inches, dielectric thickness of 0.02 inches, and a metal thickness of 0.0021 inches. Rev. C | Page 12 of 16 04504-0-024 Only a power supply and a network analyzer, along with the evaluation board, are required to demonstrate that these devices meet user requirements. An application note, available with the evaluation board, provides complete operating information. Figure 30. ADG904/ADG904-R Evaluation Board Top View Data Sheet ADG904/ADG904-R OUTLINE DIMENSIONS 6.60 6.50 6.40 20 11 4.50 4.40 4.30 6.40 BSC 1 10 PIN 1 0.65 BSC 1.20 MAX 0.15 0.05 COPLANARITY 0.10 0.30 0.19 0.20 0.09 0.75 0.60 0.45 8 0 SEATING PLANE COMPLIANT TO JEDEC STANDARDS MO-153-AC Figure 31. 20-Lead Thin Shrink Small Outline Package [TSSOP] (RU-20) Dimensions shown in millimeters 0.30 0.25 0.18 0.50 BSC PIN 1 INDICATOR 20 16 15 1 EXPOSED PAD 2.30 2.10 SQ 2.00 11 TOP VIEW 0.80 0.75 0.70 SEATING PLANE 0.65 0.60 0.55 5 10 6 0.20 MIN BOTTOM VIEW 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.20 REF FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. COMPLIANT TO JEDEC STANDARDS MO-220-WGGD-1. Figure 32. 20-Lead Lead Frame Chip Scale Package [LFCSP_WQ] 4 mm x 4 mm Body, Very Very Thin Quad (CP-20-6) Dimensions shown in millimeters Rev. C | Page 13 of 16 08-16-2010-B PIN 1 INDICATOR 4.10 4.00 SQ 3.90 ADG904/ADG904-R Data Sheet ORDERING GUIDE Model 1, 2 ADG904BCPZ ADG904BCPZ-R-REEL ADG904BCPZ-REEL ADG904BCPZ-REEL7 ADG904BRUZ ADG904BRUZ-R ADG904BRUZ-REEL7 ADW54011Z-0REEL7 EVAL-ADG904EBZ EVAL-ADG904REBZ 1 2 Temperature Range -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C Package Description 20-Lead Lead Frame Chip Scale Package [LFCSP_WQ] 20-Lead Lead Frame Chip Scale Package [LFCSP_WQ] 20-Lead Lead Frame Chip Scale Package [LFCSP_WQ] 20-Lead Lead Frame Chip Scale Package [LFCSP_WQ] 20-Lead Thin Shrink Small Outline Package [TSSOP] 20-Lead Thin Shrink Small Outline Package (TSSOP) 20-Lead Thin Shrink Small Outline Package (TSSOP) 20-Lead Thin Shrink Small Outline Package (TSSOP) Evaluation Board Evaluation Board Package Option CP-20-6 CP-20-6 CP-20-6 CP-20-6 RU-20 RU-20 RU-20 RU-20 Z = RoHS compliant part. W = Qualified for Automotive Applications. AUTOMOTIVE PRODUCTS The ADW54011Z model is available with controlled manufacturing to support the quality and reliability requirements of automotive applications. Note that this automotive model may have specifications that differ from the commercial models; therefore, designers should review the Specifications section of this data sheet carefully. Only the automotive grade product shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for this model. Rev. C | Page 14 of 16 Data Sheet ADG904/ADG904-R NOTES Rev. C | Page 15 of 16 ADG904/ADG904-R Data Sheet NOTES (c)2004-2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04504-0-/13(C) Rev. C | Page 16 of 16