ISL5217 Datasheet

IC型號(hào)：
ISL5217
PDF描述：
Quad Programmable Up Converter
文件大?。?/label>
799.82KB
PDF頁(yè)數(shù)：
43頁(yè)
芯片廠家：
INTERSIL

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ISL5217

Data Sheet

March 2003

FN6004.2

Quad Programmable Up Converter

The ISL5217 Quad Programmable

UpConverter (QPUC) is a QASK/FM

modulator/FDM upconverter designed

for high dynamic range applications such as cellular

basestations. The QPUC combines shaping and interpolation

filters, a complex modulator, and timing and carrier NCOs into a

single package. Each QPUC can create four FDM channels.

Multiple QPUCs can be cascaded digitally to provide for up to 16

FDM channels in multi-channel applications.

The ISL5217 supports both vector and FM modulation. In vector

modulation mode, the QPUC accepts 16-bit I and Q samples to

generate virtually any quadrature AM or PM modulation format.

The QPUC also has two FM modulation modes. In the FM with

pulse shaping mode, the 16-bit frequency samples are pulse

shaped/bandlimited prior to FM modulation. No band limiting filter

follows the FM modulator. This FM mode is useful for GMSK type

modulation formats. In the FM with band limiting filter mode, the

16-bit frequency samples directly drive the FM modulator. The

FM modulator output is filtered to limit the spectral occupancy.

This FM mode is useful for analog FM or FSK modulation

formats.

The QPUC includes an NCO driven interpolation filter, which

allows the input and output sample rate to have an integer

and/or variable relationship. This re-sampling feature

simplifies cascading modulators with sample rates that do not

have harmonic or integer frequency relationships.

The QPUC offers digital output spectral purity that exceeds

100dB at the maximum output sample rate of 104MSPS, for

input sample rates as high as 6.5MSPS.

A 16-bit microprocessor compatible interface is used to load

configuration and baseband data. A programmable FIFO depth

interrupt simplifies the interface to the I and Q input FIFOs.

Features

鈥?Output Sample Rates Up to 104MSPS with Input Data

Rates Up to 6.5MSPS

鈥?Processing Capable of >140dB SFDR Out of Band

鈥?Vector modulation for supporting IS-136, EDGE, IS95, TD-

SCDMA, CDMA-2000-1X/3X, W-CDMA, and UMTS

鈥?FM Modulation for Supporting AMPS, NMT, and GSM

鈥?Four Completely Independent Channels on Chip, Each With

Programmable 256 Tap Shaping FIR, Half-Band, and High

Order Interpolation Filters

鈥?16-Bit parallel

碌Processor

Interface and Four Independent

Serial Data Inputs

鈥?Two 20-bit I/O Buses and Two 20-bit Output Buses Allow

Cascading Multiple Devices

鈥?32-Bit Programmable Carrier NCO; 48-Bit Programmable

Symbol Timing NCOs

鈥?Dynamic Gain Profiling and Output Routing Control

Applications

鈥?Single or Multiple Channel Digital Software Radio

Transmitters (Wide-Band or Narrow-Band)

鈥?Base Station Transmitter and Smart Antennas

鈥?Operates with HSP50216 in Software Radio Solutions

鈥?Compatible with the HI5960/ISL5961 or HI5828/ISL5929

D/A Converters

Ordering Information

PART

NUMBER

ISL5217KI

ISL5217EVAL1

TEMP

RANGE (

-40 to 85

PACKAGE

196 Ld BGA

Evaluation Kit

PKG. NO

V196.15x15

Block Diagram

INPUT I/Q SHAPING I/Q

DATA

FILTER/

FM MOD.

I/Q HALF I/Q INTPL I/Q COMPLEX I/Q

BAND

MIXER

FILTER

SIN

COS

CARRIER

NCO

GAIN CONTROL

GAIN PROFILE

SDA

SDB

SDC

SDD

Q0 4 CH

I1 SUM

SAMPLE

NCO

危

DELAY

SUM

CAS IOUT(19:0)

SUM

CAS

SUM QOUT(19:0)

QIN(19:0)

IIN(19:0)

CHANNEL 0

CHANNEL 1

CHANNEL 2

CHANNEL 3

P<15:0>

A<6:0>

{CNTRL}

危

PARALLEL HOST INTERFACE

CONFIGURATION AND CONTROL BUS

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.

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

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