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AD6650: Diversity IF-to-Baseband GSM/EDGE Narrow-Band Receiver Data Sheet (Rev. A)3/1/2006PDF1053 kB
Overview
Features and Benefits
- 116 dB dynamic range
- Digital VGA
- I/Q demodulators
- Active low-pass filters
- Dual wideband ADC
- Programmable decimation and channel filters
- VCO and phase-locked loop circuitry
- Serial data output ports
Product Details
The AD6650 is a diversity intermediate frequency-to-baseband(IF-to-baseband) receiver for GSM/EDGE. This narrow-band receiver consists of an integrated DVGA, IF-to-baseband I/Q demodulators, low-pass filtering, and a dual wideband ADC. The chip can accommodate IF input from 70 MHz to 260 MHz. The receiver architecture is designed such that only one external surface acoustic wave (SAW) filter for main and one for diversity are required in the entire receive signal path to meet GSM/EDGE blocking requirements.
Digital decimation and filtering circuitry provided on-chip remove unwanted signals and noise outside the channel of interest. Programmable RAM coefficient filters allow antialiasing, matched filtering, and static equalization functions to be combined in a single cost-effective filter. The output of the channel filters is provided to the user via serial output I/Q data streams.
APPLICATIONS
- PHS or GSM/EDGE single carrier, diversity receivers
- Microcell and picocell systems Wireless local loop
- Smart antenna systems
- Software radios In-building wireless telephony
Product Categories
Product Lifecycle
Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Documentation & Resources
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AN-835: Understanding High Speed ADC Testing and Evaluation (Rev. B)5/12/2015PDF985 kB
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AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0)7/26/2006PDF262 kB
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Designing Power Supplies for High Speed ADC2/1/2012
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The Hard Truth about System-on-Chip Designs3/17/2004
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Fast-Locking, High Sensitivity Tuned-IF Radio Receiver Achieved with a 7-GHz Synthesizer5/1/2003 Analog Dialogue
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Smart Partitioning Eyes 3G Basestation10/18/2002
