AD608-EB Analog Devices Inc, AD608-EB Datasheet
AD608-EB
Specifications of AD608-EB
Related parts for AD608-EB
AD608-EB Summary of contents
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... The RSSI output is from a two-pole postdemodulation low-pass filter and provides a loadable output voltage of 0 1.8 V. The AD608 operates from a single 2 5.5 V supply at a typical power level 24dB MIXER GAIN ±6mA MAX OUTPUT (± ...
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... AD608 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 Thermal Resistance ...................................................................... 4 ESD Caution .................................................................................. 4 Pin Configuration and Function Descriptions ............................. 5 Typical Performance Characteristics ............................................. 6 Test Circuits ....................................................................................... 8 Theory of Operation ........................................................................ 9 REVISION HISTORY 2/09—Rev Rev. C Updated Format .................................................................. Universal Reorganized Layout ............................................................ Universal Change to General Description Section ...
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... VPOS = 3 V OPERATING TEMPERATURE VPOS = 2 5.5 V MIN MAX VPOS = 3 5 VPOS is used to refer collectively to the VPS1 and VPS2 pins 165 Ω 100 MHz RF = 240 MHz RF = 229.3 MHz LO Rev Page AD608 Min Typ Max Unit 500 MHz −16 dBm −15 dBm −5 dBm 1 ...
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... AD608 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltages VPS1, VPS2 Internal Power Dissipation Temperature Range Storage Temperature Range Lead Temperature (Soldering 60 sec) 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 ...
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... Common Local Oscillator Input Connection Common RF Input, Noninverting RF Input, Inverting Mixer Output Midpoint Supply Bias Output IF Input, Noninverting IF Input, Inverting Received Signal Strength Indicator Output Output Common Offset-Null Feedback Loop Output Limiter Positive Supply Input Limiter Output Power-Up Rev Page AD608 ...
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... AD608 TYPICAL PERFORMANCE CHARACTERISTICS 25.0 24.5 24.0 23.5 23.0 22.5 22 100 150 200 250 300 RF FREQUENCY (MHz) Figure 3. Mixer Conversion Gain vs. RF Frequency 0 –1 –2 –3 –4 –5 –6 –7 – FREQUENCY (MHz) Figure 4. Mixer IF Port Bandwidth 3.0 2.5 2.0 5V 1.5 1 ...
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... INPUT POWER AT IFHI (dBm) Figure 12. Limiter Phase Performance vs. Input Power at IFHI (See Figure 21 –80 –70 –60 –50 INPUT POWER AT IFHI (dBm) Figure 13. Limiter RMS Jitter Performance vs. Input Power at IFHI (See Figure 21) Rev Page AD608 –40 –30 –20 – –40 –30 –20 – ...
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... RFHI COM3 6 RFLO RSSI 11 NC 51.1Ω 1nF 7 MXOP IFLO 10 VMID IFHI 8 9 AD608 332 Ω 332 Ω 0.1µF 0.1µF 301 Ω IF OUTPUT 54.9 Ω Figure 18. Mixer Test Board Schematic TEKRONIX IF TEST BOARD P6201 FET IFHI RSSI PROBE PRUP ...
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... THEORY OF OPERATION The AD608 consists of a mixer followed by a logarithmic IF strip with RSSI and hard-limited outputs (see Figure 22). MIXER The mixer is a doubly balanced, modified gilbert-cell mixer. Its maximum input level for linear operation is either ±56.2 mV, regardless of the impedance across the mixer inputs, or −15 dBm for a 50 Ω ...
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... VPS1 COM1 LOHI COM2 1µF 100pF LO INPUT –16dBm Table 6. AD608 Filter Termination and Offset-Null Feedback Loop Resistor and Capacitor Values for Common IFs IF Filter Impedance 2 450 kHz 1500 Ω 455 kHz 1500 Ω 6.5 MHz 1000 Ω 10.7 MHz 330 Ω 1 ...
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... Because each detector is a full-wave rectifier, the ripple component in the resulting twice the IF. The AD608 low-pass filter has a 2 MHz cutoff frequency, which is one decade below the 21.4 MHz ripple that results from a 10.7 MHz IF. ...
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... AD608 APPLICATIONS INFORMATION Figure 24 shows the AD608 configured for operation in a digital system at a 10.7 MHz IF. The input and output impedance of the filter are parallel terminated using 330 Ω resistors, and the conversion gain is 24 dB. The RF port is terminated in 50 Ω typical application, the input is matched to a SAW filter using the impedance data provided in Table 5 ...
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... ORDERING GUIDE Model Temperature Range AD608AR −40°C to +85°C AD608AR-REEL −40°C to +85°C 1 AD608ARZ −40°C to +85°C 1 AD608ARZ-RL −40°C to +85°C EVAL-AD608EBZ RoHS Compliant Part. 10.00 (0.3937) 9.80 (0.3858 6.20 (0.2441) 1 5.80 (0.2283) 8 1.27 (0.0500) BSC 1 ...
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... AD608 NOTES Rev Page ...
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... NOTES Rev Page AD608 ...
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... AD608 NOTES ©1996–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07886-0-2/09(C) Rev Page ...