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AD6624

Analog Devices
Part Number AD6624
Manufacturer Analog Devices
Description 80 MSPS Digital Receive Signal Processor
Published Jan 17, 2007
Detailed Description www.DataSheet4U.com a FEATURES 80 MSPS Wide Band Inputs (14 Linear Bits Plus 3 RSSI) Dual High Speed Data Input Ports F...
Datasheet PDF File AD6624 PDF File

AD6624
AD6624

Overview
www.
DataSheet4U.
com a FEATURES 80 MSPS Wide Band Inputs (14 Linear Bits Plus 3 RSSI) Dual High Speed Data Input Ports Four Independent Digital Receivers in Single Package Digital Resampling for Noninteger Decimation Rates Programmable Decimating FIR Filters Programmable Attenuator Control for Clip Prevention and External Gain Ranging via Level Indicator Flexible Control for Multicarrier and Phased Array 3.
3 V I/O, 2.
5 V CMOS Core User-Configurable Built-In Self-Test (BIST) Capability JTAG Boundary Scan APPLICATIONS Multicarrier, Multimode Digital Receivers GSM, IS136, EDGE, PHS, IS95 Micro and Pico Cell Systems Wireless Local Loop Smart Antenna Systems Software Radios In-Building Wireless Telephony PRODUCT DESCRIPTION Four-Channel, 80 MSPS Digital Receive Signal Processor (RSP) AD6624 The AD6624 is part of Analog Devices’ SoftCell® multicarrier transceiver chipset designed for compatibility with Analog Devices’ family of high sample rate IF sampling ADCs (AD6640/ AD6644 12- and 14-bit).
The SoftCell receiver comprises a digital receiver capable of digitizing an entire spectrum of carriers and digitally selecting the carrier of interest for tuning and channel selection.
This architecture eliminates redundant radios in wireless base station applications.
High dynamic range decimation filters offer a wide range of decimation rates.
The RAM-based architecture allows easy reconfiguration for multimode applications.
The decimating filters remove unwanted signals and noise from the channel of interest.
When the channel of interest occupies less bandwidth than the input signal, this rejection of out-of-band noise is called “processing gain.
” By using large decimation factors, this “processing gain” can improve the SNR of the ADC by 30 dB or more.
In addition, the programmable RAM coefficient filter allows antialiasing, matched filtering, and static equalization functions to be combined in a single, costeffective filter.
The AD6624 is compatible with standard ADC converter...


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