ISL5216EVAL1【PDF 1/65 页】EVALUATION BOARD FOR ISL5216KI

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ISL5216

Data Sheet

July 13, 2007

FN6013.3

Four-Channel Programmable Digital

Downconverter

The ISL5216 Quad Programmable Digital Downconverter

(QPDC) is designed for high dynamic range applications

such as cellular basestations where multiple channel

processing is required in a small physical space. The QPDC

combines into a single package a set of four channels which

include: digital mixers, a quadrature carrier NCO, digital

filters, a resampling filter, a Cartesian-to-polar coordinate

converter and an AGC loop.

The ISL5216 accepts four channels of 16-bit fixed or up to

14-bit mantissa/3-bit exponent floating point real or complex

digitized IF samples which are mixed with local quadrature

sinusoids. Each channel carrier NCO frequency is set

independently by the microprocessor. The output of the

mixers are filtered with a CIC and FIR filters, with a variety of

decimation options. Gain adjustment is provided on the

filtered signal. The digital AGC provides a gain adjust range

of up to 96dB with programmable thresholds and slew rates.

A cartesian to polar coordinate converter provides

magnitude and phase outputs. A frequency discriminator is

also provided to allow FM demodulation. Selectable outputs

include I samples, Q samples, Magnitude, Phase,

Frequency and AGC gain. The output resolution is

selectable from 4-bit fixed point to 32-bit floating point.

Output bandwidths in excess of 1MHz are achievable using

a single channel. Wider bandwidths are available by

cascading or polyphasing multiple channels.

Features

? Up to 95MSPS Input

? Four Independently Programmable Downconverter

Channels in a single package

? Four Parallel 17-Bit Inputs providing 16-bit fixed or one of

several 17-bit floating point formats

? 32-Bit Programmable Carrier NCO with > 115dB SFDR

? 110dB FIR Out of Band Attenuation

? Decimation from 4 to >65536

? 24-bit Internal Data Path

? Digital AGC with up to 96dB of Gain Range

? Filter Functions

- 1- to 5-Stage CIC Filter

- Halfband Decimation and Interpolation FIR Filtering

- Programmable FIR Filtering

- Resampling FIR Filtering

? Cascadable Filtering for Additional Bandwidth

? Four Independent Serial Outputs

? 2.5V Core, 3.3V I/O Operation

? Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

? Narrow-Band TDMA through IS-95 CDMA Digital Software

Radio and Basestation Receivers

? Wide-Band Applications: W-CDMA and UMTS Digital

Software Radio and Basestation Receivers

Ordering Information

PART NUMBER

ISL5216KI

ISL5216KI-1

ISL5216KIZ (Note)

ISL5216KI-1Z (Note)

PART MARKING

ISL5216KI

ISL5216KI-1

ISL5216KIZ

ISL5216KI-1Z

TEMP RANGE (°C)

-40 to +85

PACKAGE

196 Ld 0.8mm BGA

196 Ld 1.0mm BGA

196 Ld 0.8mm BGA (Pb-free)

196 Ld 1.0mm BGA (Pb-free)

PKG. DWG. #

V196.12x12

V196.15x15

V196.12x12

V196.15x15

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate

termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL

classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

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

1-888-INTERSIL or 1-888-468-3774 | 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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