AD6623AS datasheet(1/40 Pages) AD

Part #	AD6623AS

Description	4-Channel, 104 MSPS Digital Transmit Signal Processor TSP

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a

AD6623

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

4-Channel, 104 MSPS Digital

Transmit Signal Processor (TSP)

FUNCTIONAL BLOCK DIAGRAM

SPORT

RAM

COEFFICIENT

FILTER

DATA

SCALER

AND

POWER

RAMP

CIC5

FILTER

RCIC2

FILTER

NCO

I

Q

CHAN A

I

Q

I

Q

I

Q

JTAG

CS

A[2:0]

MODE

RW

DTACK

DS

D[7:0]

IN

QIN

SYNC

OEN

QOUT

OUT

[17:0]

SDINA

SDFIA

SDFOA

SCLKA

SDINB

SDFIB

SDFOB

SCLKB

SDINC

SDFIC

SDFOC

SCLKC

SDIND

SDFID

SCLKD

SDFOD

SUMMATION

SCALER

AND

POWER

RAMP

CIC5

FILTER

RCIC2

FILTER

NCO

I

Q

CHAN B

I

Q

I

Q

I

Q

SCALER

AND

POWER

RAMP

CIC5

FILTER

RCIC2

FILTER

NCO

I

Q

CHAN C

I

Q

I

Q

I

Q

SCALER

AND

POWER

RAMP

CIC5

FILTER

RCIC2

FILTER

NCO

I

Q

CHAN D

I

Q

I

Q

I

Q

MICROPORT

CLK

RESET

4

[17–0]

SPORT

RAM

COEFFICIENT

FILTER

DATA

SPORT

RAM

COEFFICIENT

FILTER

DATA

SPORT

RAM

COEFFICIENT

FILTER

DATA

NCO = NUMERICALLY CONTROLLED

OSCILLATOR/TUNER

TDL

TMS TCK

TRST

TDO

FEATURES

Pin Compatible to the AD6622

18-Bit Parallel Digital IF Output

Real or Interleaved Complex

18-Bit Bidirectional Parallel Digital IF Input/Output

Allows Cascade of Chips for Additional Channels

Clipped or Wrapped Over Range

Two’s Complement or Offset Binary Output

Four Independent Digital Transmitters in Single Package

RAM Coefficient Filter (RCF)

Programmable IF and Modulation for Each Channel

Programmable Interpolating RAM Coefficient Filter

p/4-DQPSK Differential Phase Encoder

3p/8-PSK Linear Encoder

8-PSK Linear Encoder

Programmable GMSK Look-Up Table

Programmable QPSK Look-Up Table

All-Pass Phase Equalizer

Programmable Fine Scaler

Programmable Power Ramp Unit

High Speed CIC Interpolating Filter

Digital Resampling for Noninteger Interpolation Rates

NCO Frequency Translation

Spurious Performance Better than –100 dBc

Separate 3-Wire Serial Data Input for Each Channel

Bidirectional Serial Clocks and Frames

Microprocessor Control

2.5 V CMOS Core, 3.3 V Outputs, 5 V Inputs

JTAG Boundary Scan

APPLICATIONS

Cellular/PCS Base Stations

Micro/Pico Cell Base Stations

Wireless Local Loop Base Stations

Multicarrier, Multimode Digital Transmit

GSM, EDGE, IS136, PHS, IS95, TDS CDMA, UMTS,

CDMA2000

Phased Array Beam Forming Antennas

Software Defined Radio

Tuning Resolution Better than 0.025 Hz

Real or Complex Outputs

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