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廬

ISL5416

Data Sheet

February 2003

FN6006.2

Four-Channel Wideband Programmable

DownConverter

The ISL5416 Four-Channel Wideband Programmable Digital

DownConverter (WPDC) is designed for high dynamic range

applications such as cellular basestations where the

processing of multiple channels is required in a small

physical space. The WPDC combines four channels in a

single package, each including: an NCO, a digital mixer,

digital filters, an AGC and a resampling filter.

All channels are independently programmable and may be

updated in real time. Each of the four channels can select

any of the four digital input buses. Each of the tuners can

process a W-CDMA channel. Channels may be cascaded or

polyphased for increased bandwidth. Selectable outputs

include I samples, Q samples, and AGC gain. Outputs from

the part are available over the parallel, serial or uP

interfaces.

Features

鈥?Up to 95MSPS Input

鈥?Four Parallel 16-bit Fixed or 17-bit Floating Point Inputs

鈥?Programmable RF Attenuator/VGA Control

鈥?32-Bit Programmable Carrier NCO with > 110dB SFDR

鈥?20-bit Internal Data Path

鈥?Filter Functions

- Multi-Stage Cascaded-Integrator-Comb (CIC) Filter

- Two programmable FIR Filters (first up to 32-taps,

second up to 64-taps)

- Half Band Interpolation Filter

- Resampling FIR Filter

鈥?Overall decimation from 1 to >4096

鈥?Digital AGC with up to 96dB of Gain Range

鈥?Up to Four Independent 16-bit Parallel Outputs

鈥?Serial Output Option

Ordering Information

PART

NUMBER

ISL5416KI

ISL5416EVAL1

TEMP

RANGE (

o

C)

-40 to 85

25

PACKAGE

256 BGA

PKG. NO

V256.17x17

鈥?16-bit Parallel

碌P

Interface

鈥?1.8V core, 3.3V I/O Operation

鈥?Evaluation Board and Configuration Software available

EVALUATION KIT

Applications

鈥?Basestation Receivers: GSM/EDGE, CDMA2000, UMTS.

Block Diagram

TEST

REGISTER

OUTPUT

RANGE CONTROL

AOUT(15:8)

INPUT CHANNEL ROUTING

NCO I

MIXER

CIC

Q

I

FIR1

FILTER

Q

FIR2

FILTER

I

AGC

Q

Q

I

IHBF

Q

I

RESAMPLER

Q

I

OUTPUT ROUTING & FORMATTING

AOUT(7:0)

FSYNCA

OEA

AIN(16:0)

ENIA

CLKA

INPUT

SELECT

CLOCK &

FORMAT

INPUT A

INPUT B

INPUT C

INPUT D

CHANNEL O

CHANNEL 1

CHANNEL 2

CHANNEL 3

CLKO1

CLKO2

/INTRPT

EOUT(15:0)

RF ATTENUATOR

VGA CONTROL

JTAG

SYNCHRONIZATION

SYNCO SYNCIN1 SYNCIN2

碌P

INTERFACE

ADD(2:0)

uP MODE

CE

RD or

RD/WR

RESET

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

|

Intersil (and design) is a registered trademark of Intersil Americas Inc.

Copyright 漏 Intersil Americas Inc. 2003. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

P(15:0)

WR or

DSTRB

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