Datasheet > SL1935NP1Q

SL1935NP1Q

更新时间： 2022-11-26 02:00:26

品牌	Logo	应用领域
加拿大卓联 - ZARLINK		/
页数	文件大小	规格书
23页	415K
描述
Single Chip Synthesized Zero IF Tuner

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SL1935NP1Q 数据手册

SL1935

Single Chip Synthesized Zero IF Tuner

April 2004

Features

Ordering Information

SL1935D/KG/NP1P (Tubes) 36 pin SSOP

•

Singlechipsynthesisedtunersolutionforquadrature

SL1935D/KG/NP1Q (Tape and Reel) 36 pin SSOP

down conversion, L-band to Zero IF.

DVB compliant, operating dynamic range -70 to

-20dBm.

Compatible with DSS and DVB variable symbol rate

applications.

Description

Selectable baseband path, programmable through

I C bus.

The SL1935 is a complete single chip

bus controlled

I C

Excellent quadrature balance up to 30MHz

baseband

Excellent immunity to spurious second harmonic

(RF and LO) mixing effects.

Zero IF tuner and operates from 950 to 2150MHz. It

includes an on-board low phase noise PLL frequency

synthesiser and low noise LNA/AGC. The SL1935 is

intendedprimarilyforapplicationindigitalsatellite Network

Interface Modules and performs the complete tuner

function.

•

Low oscillator phase noise and reradiation.

High output referred linearity for low distortion and

multi channel application.

•

Integral fast mode compliant I C bus controlled PLL

The device contains all elements necessary, with the

exception of local oscillator tuning network and crystal

reference, to produce a high performance I(n-phase) &

Q(uadrature) downconversion tuner function. Due to the

high signal handling design the device does not require

any front end tracking filters.

frequencysynthesiser, designedforhighcomparison

frequencies and low phase noise performance.

Buffered crystal output for clocking QPSK

demodulator.

•

ESD protection (Normal ESD handling procedures

should be observed).

The SL1935 includes selectable baseband signal paths,

allowing application with two externally definable filter

bandwidths, facilitating application in variable symbol

rate and simulcast systems. The SL1935 is optimised to

interface with the VP310 (ADC/QPSK/FEC) Satellite

Channel Decoder, available from Zarlink Semiconductor

and offers a full front end solution.

Applications

•

Satellite receiver systems.

Data communications systems.

XTALCAP

PUMP

DRIVE

PORT P0

VEE

XTAL

SDA

SCL

BUFREF

VCCD

VCC

TANKS

TANKSB

VEE

TANKV

TANKVB

VEE

RFB

VCC

IFIA

IFQA

IFIB

IFQB

VCC

OFIA

OFIB

VEE

VCC

OFQA

OFQB

VEE

IOUT

ADD

QOUT

AGCCONT

Figure1. Pin connections

Zarlink Semiconductor Inc.

Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.

12 3 4 5 6 7...23

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