ADG904BCP-500RL7

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 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 × 4 mm LFCSP packages Low power consumption (1 μA maximum) ADG904 ADG904-R RF1 RF1 50Ω 50Ω RF3 50Ω 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 A0 S21 –60 10M 100M FREQUENCY (Hz) 1G 10G 04504-0-028 S12 Figure 3. Off Isolation vs. Frequency EN 2. 1.1 dB insertion loss @ 1 GHz 3. 20-lead TSSOP/LFCSP packages –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 = 25°C –3.0 10k 100k 1M 10M 100M FREQUENCY (Hz) 1G 10G 04504-0-029 −37 dB off isolation @ 1 GHz INSERTION LOSS (dB) –50 A1 Figure 2. 1. –20 –40 A0 PRODUCT HIGHLIGHTS VDD = 2.5V –30 1 OF 4 DECODER 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 1M EN Figure 1. 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. 100k A1 04504-0-012 1 OF 4 DECODER 04504-0-001 50Ω 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 Ω 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. –70 RF4 RF4 GENERAL DESCRIPTION INSERTION LOSS (dB) RFC RFC RF3 APPLICATIONS –80 10k RF2 RF2 Figure 4. Insertion Loss vs. Frequency Rev. B 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. 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All rights reserved. ADG904/ADG904-R 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 REVISION HISTORY 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. B | Page 2 of 16 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 Insertion Loss 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 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 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 4 Min 51 35 30 50 35 30 21 18 15 18 16 18 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 10 GHz GHz dBm dBm dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB ns tOFF (EN) 50% EN to 10% RF 13 16 ns 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 12 3 7.5 16 31 3 15 5 9 ns ns ns dBm dBm mV p-p 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 B 26.5 1.7 0.65 VCC ± 0.1 3 2 1.65 1 0.7 0.35 VCC ±1 0.1 V V V V μA pF pF 2.75 1 V μA Temperature range B version: −40°C to +85°C. Typical values are at VDD = 2.5 V and 25°C, 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 Ω test setup, measured with 1 ns rise time pulses and 500 MHz bandwidth. 2 Rev. B | Page 3 of 16 ADG904/ADG904-R ABSOLUTE MAXIMUM RATINGS TA = 25°C, 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 θJA Thermal Impedance LFCSP Package θJA Thermal Impedance (4-Layer Board) Lead Temperature, Soldering (10 sec) IR Reflow, Peak Temperature (