AD6635: Four-Channel, 80 MSPS WCDMA Receive Signal Processor (RSP)
The AD6635 is a multi-mode eight channel digital Receive Signal Processor (RSP) capable of processing up to four WCDMA channels. Each channel consists of four cascaded signal-processing elements: a ...More
AD6635: Four-Channel, 80 MSPS WCDMA Receive Signal Processor (RSP)
Product Description
The AD6635 is a multi-mode eight channel digital Receive Signal Processor (RSP) capable of processing up to four WCDMA channels. Each channel consists of four cascaded signal-processing elements: a frequency translator, two CIC decimating filters, and a programmable coefficient-decimating filter. Each input port has input level threshold detection circuitry and an AGC controller for accommodating large dynamic ranges or situations where gain ranging converters are used. Quad 16-bit parallel output ports accomodate high data rate WBCDMA applications. On-chip interpolating half band filters can also be used to further increase the output rate. In addition, each parallel output port has a digital AGC for output data scaling. Link port outputs are provided to enable glueless interfaces to Analog Devices’ TigerSHARC™ DSP core.
The AD6635 is part of Analog Devices’ SoftCell™ Multi-carrier transceiver chipset designed for compatibility with Analog Devices family of high sample rate IF sampling ADCs (AD6640/AD6644 12 & 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.
- Data Sheet Rev 0, 02/2003 (pdf 799kB)
- (About Data Sheets)
Features
- 80 MSPS Wide Band Inputs (14 linear
bit plus 3 RSSI) - Processes 4 WCDMA channels (UMTS or cdma2000 1x)
or 8 GSM/EDGE, IS136 Channels - Eight Independent Digital Receivers
in a Single Package - Four 16-Bit Parallel Output Ports and
Four 8-Bit Link Ports - Programmable Digital AGC Loops with
96d B Range - Digital Re-sampling for non-Integer
Decimation Rates
- Programmable Decimating FIR Filters
- Four Interpolating Half Band Filters
- Programmable Attenuator Control for
Clip Prevention and External Gain
Ranging via Level Indicator - Flexible Control for Multi-Carrier
and Phased Array - 3.3 Volt I/O, 2.5 Volt CMOS Core
- User Configurable Built in Self Test
(BIST) Capability
Diagrams
- Enlarge
- Symbols and Footprints
Functional Block Diagram for AD6635
Four-Channel, 80 MSPS WCDMA Receive Signal Processor (RSP)
Functional Block Diagram for AD6635
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Download this Selection Table (pdf, 22,589 bytes) |
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Last Updated: 9/2007 |
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| Generic Part # | MSPS | GSM, EDGE/GPRS | CDMA2000 | UMTS | TDS-CDMA | |
|---|---|---|---|---|---|---|
| 1x | 3x | |||||
| AD6620 | 65 | 1 Channel (main and diversity) |
1 Channel 2 samples per chip |
1 Channel with FPGA to finish filtering 2 samples per chip |
1 Channel with FPGA to finish filtering 2 samples per chip |
1 Channel |
| AD6624 | 80 | 4 Channels 2 samples per symbol |
2 Channels 2 samples per chip |
1 Channel with FPGA for serial to parallel conversion 2 samples per chip |
1 Channel with FPGA for serial to parallel conversion 2 samples per chip |
1 sample per chip |
| AD6624A | 100 | 2 Channels with FPGA for serial to parallel conversion 2 samples per chip |
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| AD6634 | 80 | 4 Channels 2 samples per symbol |
2 Channels 4 samples per chip Digital AGC |
2 Channels 4 samples per chip Digital AGC |
2 Channels 4 samples per chip Digital AGC |
4 Channels 1 sample per chip |
| AD6635 | 80 | 8 Channels 2 samples per symbol |
4 Channels 4 samples per chip Digital AGC |
4 Channels 4 samples per chip Digital AGC |
4 Channels 4 samples per chip Digital AGC |
8 Channels 1 sample per chip |
| AD6636 | 150 | 6 Channels 4 / 8 samples per symbol |
6 Channels 4 samples per chip Digital AGC |
6 Channels 4 samples per chip Digital AGC |
6 Channels Digital AGC |
6 Channels 1 / 2 / 4 samples per chip |
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| Generic Part # | MSPS | GSM, EDGE/GPRS | CDMA2000 | UMTS | TDS-CDMA | |
|---|---|---|---|---|---|---|
| 1x | 3x | |||||
| AD6622 | 75 |
4 Channels Serial output |
2 Channels Serial output |
1 Channel Serial output |
1 Channel Serial output |
4 Channels Serial output |
| AD6623 | 104 | 4 Channels Modulate using I/Q symbols Direct modulation xPSK Mode switching Power Ramping |
2 Channels (real output) Serial output Includes IIR filter for phase pre-distortion |
2 Channels (real output) Serial output |
2 Channels (real output) Serial output |
4 Channels Serial output Power Ramping Direct modulation |
| AD6633 | 125 | 6 Channels Modulated I/Q data VersaCREST™ Crest Reduction Engine IF/RF compensation using complex filter |
6 Channels Modulated I/Q data VersaCREST™ Crest Reduction Engine Includes IIR filter for phase pre-distortion |
6 Channels Modulated I/Q data VersaCREST™ Crest Reduction Engine IF/RF compensation using complex filter |
6 Channels Modulated I/Q data VersaCREST™ Crest Reduction Engine IF/RF compensation using complex filter |
6 Channels Modulated I/Q data VersaCREST™ Crest Reduction Engine IF/RF compensation using complex filter |
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| Generic Part # | MSPS | GSM, EDGE/GPRS | CDMA2000 | UMTS | TDS-CDMA | |
|---|---|---|---|---|---|---|
| 1x | 3x | |||||
| AD6652 | 65 | 4 Channels 2 samples per symbol |
2 Channels with some external filtering 4 samples per chip Digital AGC |
2 Channels with some external filtering 4 samples per chip Digital AGC |
2 Channels with some external filtering 4 samples per chip Digital AGC |
4 Channels 1 sample per chip |
| AD6653 | 150 | 2 x 6 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
2 x 12 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
2 x 6 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
2 x 4 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
2 x 12 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
| AD6654 | 92.16 | 6 Channels 4 / 8 samples per symbol |
6 Channels 4 samples per chip Digital AGC |
6 Channels 4 samples per chip Digital AGC |
6 Channels 4 samples per chip Digital AGC |
6 Channels 1 / 2 / 4 samples per chip |
| AD6655 | 150 | 2 x 6 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
2 x 12 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
2 x 6 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
2 x 4 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
2 x 12 Channels - external Channelization Filters Required Fast Level Detect and Power Monitor |
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| Generic Part # | Master Clock (MSPS min) | Power Supply Voltage (Vnom) | Power Dissipation (mW max) | Description |
|---|---|---|---|---|
| AD9856 | 200 | Single (+3) | 1590 | 200 MHz Quadrature Digital Upconverter With 12-Bit Data Path |
| AD9857 | 200 | Single (3.3 V) | 2029 | 200 MSPS Quadrature Digital Upconverter with 14-bit Data Path |
| AD9957 | 1000 | Multi (1.8, 3.3) | 1800 | 1 GSPS Quadrature Digital Upconverter with 18-Bit IQ Data Path and 14-Bit DAC |
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AD6635 Model Options
| Model | Status | Package | Pins | Temp. Range |
Price* (1000 pcs.) |
Production** Availability |
ROHS Compliant | Samples Cart | Purchase Cart |
|---|---|---|---|---|---|---|---|---|---|
| AD6635BB | Prodn | 324 ball BGA | 324 | Ind | $41.63 | 11/21/2008 |
N
Material Declaration |
Contact ADI | Add To Cart |
| AD6635BB/PCB | Obs | EVALUATION BOARDS | - | Ind | - | - | N | Contact ADI | Contact ADI |
| AD6635BBZ | Obs | 324 ball BGA | 324 | Ind | $ | - |
Y
Material Declaration |
Contact ADI | Contact ADI |
Help
Close- Pre-Release: The model has not been released to general production, but samples may be available.
- Production: The model is currently being produced, and generally available for purchase and sampling.
- Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
- Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
For detailed drawings and chemical composition please consult our Package Site
- Commercial: 0 to +70 degrees Celsius
- Military : -55 to +125 degrees Celsius
- Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
- Automotive: -40 to +125 degrees Celsius
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.
*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples iinto your cart to check sample availability.