SL1466QP1S datasheet(2/18 Pages) ZARLINK

Teilenummer	SL1466QP1S

Bauteilbeschribung	Wideband PLL FM Demodulator

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Hersteller	ZARLINK [Zarlink Semiconductor Inc]

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FEATURES

I Single chip PLL system for wideband FM

demodulation

I Simple low component count application

I Fully balanced low radiation design

I High operating input sensitivity

I 2 stage AGC detect for control over internal and

external AGC stages

I Low distortion video output drive

I Video polarity invert

I Digital AFC with window adjust

I ESD protection (Normal ESD handling procedures

should be observed)

ORDERING INFORMATION

SL1466/KG/QP1S

Fig.1 Pin connections - top view

The SL1466 is a wideband PLL FM demodulator, intended

primarily for application in satellite tuners.

The device contains all elements necessary, with the

exception of external local oscillator tank and loop filter

components, to form a complete PLL system operating at 403

or 480MHz.

An AFC system is provided, whose output signals can be

used to correct for any frequency drift at the head end local

oscillator.

APPLICATIONS

I Satellite receiver systems

I Data communications systems

Fig. 2 Block diagram

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2

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7

8

9

10

11

12

13

14

15

16

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18

19

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21

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27

28

VCC

VIDEO FB+

VIDEO +

VIDEO –

VIDEO FB–

IF V CC

IF IPB

IF GND

AGC TIME CONSTANT

IF AGC SET

RF AGC SET

NC

RF AGC CONTROL

GND

DIGF LO

DIGF HI

AFC SET

AFC WINDOW

OSC VCC

OSC +

OSC –

OSC GND

VCO GAIN SET

VIDEO DRIVE

VIDEO POL SELECT

NC

QP28

IF IP

AGC

AMP

IF IP

NC

RF AGC CONTROL

NC

AGC

DETECT

RF AGC

SET

AGC TIME

CONST

LO

TANK

VCO

GAIN SET

DIGF HI

DIGF LO

AFC WINDOW

AFC SET

VIDEO

POLARITY

VIDEO DRIVE

VIDEO FB–

VIDEO –

VIDEO +

VIDEO FB+

S/H

AFC

IF IPB

21

22

13

16

15

Vcc

GND

28

1

14

17

18

IF

AGC

SET

19

7

8

10

27

26

25

24

11

12

4

5

2

3

PHASE

DETECTOR

REF

ON CHIP

VCO

SELECT

SL1466

Wideband PLL FM Demodulator

Preliminary Information

DS 3979 2.2 August 1997

Ähnliche Beschreibung - SL1466QP1S

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