AD6633: Multi-channel (Digital) Transmit Signal Processor (TSP) with VersaCREST™ Crest Reduction Engine

Product Status:Not Recommended for New Designs

AD6633 Data Sheet Rev Sp0, 11/2004 (pdf 89kB)

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Product Status:Not Recommended for New Designs

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Model	Package	Price* (100-499)	Price* 1000 pcs
AD6633BBCZ Status: Production	196 ball CSPBGA (1.70mm thick)	$93.81	$79.50
AD6633CBCZ Status: Production	196 ball CSPBGA (1.70mm thick)	$62.54	$53.00

The AD6633 is a multi-channel, wide-bandwidth (Digital) Transmit Signal Processor (TSP) with VersaCREST™ crest reduction engine. It processes digital baseband input data and generates wideband, real or complex output data. It drives Intermediate Frequency (IF) sampling Digital to Analog Converters (DACs) at sample rates up to 125 Mega Samples Per Second (MSPS). Up to six wideband modulated carriers per package can be achieved from a single output port. Devices may be connected together for additional channels by using multiple packages. Interpolation, anti-imaging filtering, all pass equalization, and NCO tuning functions are combined in a single, cost-effective device which includes the VersaCREST™ crest factor reduction engine.

Each VersaCREST™ wideband channel contains a peak-to-average compensation block that reduces Power Amplifier (PA) requirements. By minimizing infrequent peaks in Code-Division Multiple-Access (CDMA) signals, a PA with one-half to one-quarter the previously necessary power capacity can be used. This is done within standard signal quality requirements, and significantly lowers system cost.

VersaCREST is a trademark of Analog Devices Inc.

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FEATURES and BENEFITS

4 or 6 wideband digital upconverter channels
VersaCREST™ crest reduction engine reduces demands on external power amplifiers
One 20-bit complex input port (I/Q interleaved), shared among 4 or 6 processing channels
Two 18-bit output ports for parallel I and Q, or interleaved I and Q on a single port
All-pass phase equalizer filters (meets cdma2000 requirements)
Programmable RAM coefficient FIR filters (RCF) with resampling

FIR interpolating filters and Fifth-order interpolating CIC filter
Full complex NCO, 32-bit tuning resolution (fine), worst spur better than - 105 dBc
Complex FIR filter for frequency equalization
Power monitoring and output Automatic Gain Control
16-bit/8-bit MicroPort or SPI/SPORT compatible serial port
3.3 V I/O and 1.8 V core supplies

Functional Block Diagram for AD6633

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Documentation

Title	Content Type	File Type
AD6633: Multichannel Digital UpConverter with VersaCREST™ Crest Reduction Engine Data Sheet (Rev Sp0, 11/2004) (pdf, 89 kB)	Data Sheets	PDF
AN-0974: Multicarrier TD-SCMA Feasibility (pdf, 634 kB)	Application Notes	PDF
AN-835: Understanding High Speed ADC Testing and Evaluation (pdf, 985 kB)	Application Notes	PDF
Design A Clock-Distribution Strategy With Confidence by Demetrios Efstathiou (Electronic Design, April 27, 2006)	Technical Articles	HTML
DUC Eclipses Competitive Offerings This Digital Upconverter Device Relies On A Unique Patent-Pending Engine Technology To Reduce Power And Costs While Improving Signal-Conditioning Performance. (Wireless Systems Design, March 2004)	Product Reviews	HTML
What is Digital Up/Down Converters: VersaCOMM™?	Overview	HTML
RAQs index	Rarely Asked Questions	HTML
Glossary of EE Terms	Glossary	HTML

Design Tools,Models,Drivers & Software

Title	Content Type	File Type
AD6633 IBIS Model AD6633 (All Models)	IBIS Models	HTML

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AD6633 Model Options

Print Table

Model	Package	Pins	Temp. Range	Packing, Qty	Price*(100-499)	Price*1000 pcs	RoHS	View PCN/ PDN	Check Inventory/ Purchase/Sample
AD6633BBCZ Status: Production	196 ball CSPBGA (1.70mm thick)	196	Comm.	Tray, 126	$93.81	$79.50	Y Material Info	PCN	Purchase
AD6633CBCZ Status: Production	196 ball CSPBGA (1.70mm thick)	196	Comm.	Tray, 126	$62.54	$53.00	Y Material Info	PCN	Purchase

Price Table Help

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.

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AD6633: Multi-channel (Digital) Transmit Signal Processor (TSP) with VersaCREST™ Crest Reduction Engine