SL1461MPAS datasheet(1/12 Pages) MITEL

Il numero della parte	SL1461MPAS

Spiegazioni elettronici	Wideband PLL FM Demodulator

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Produttore elettronici	MITEL [Mitel Networks Corporation]

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SL1461SA

Wideband PLL FM Demodulator

Advance Information

The SL1461SA is a wideband PLL FM demodulator,

intended primarily for application in satellite tuners.

The device contains all elements necessary, with the

exception of external oscillator sustaining network and loop

feedback components, to form a complete PLL system

operating at frequencies up to 800MHz.

An AFC with window adjust is provided, whose output

signal can be used to correct for any frequency drift at the head

end local oscillator.

FEATURES

s Single chip PLL system for wideband FM

demodulation

s Simple low component count application

s Allows for application of threshold extension

s Fully balanced low radiation design

s High operating input sensivity

s Improved VCO stability with variations in supply or

temperature

s AGC detect and bias adjust

s 75

Ω video output drive with low distortion levels

s Dynamic self biasing analog AFC

s Full ESD Protection*

* Normal ESD handling procedures should be observed

MP16

Fig.1 Pin connections - top view

Fig.2 SL1461SA block diagram

DS4049 - 1.2 December 1994

APPLICATIONS

s Satellite receiver systems

s Data communications Systems

ORDERING INFORMATION

SL1461SA/KG/MPAS

16

116

89

2

4

3

5

6

7

10

11

12

13

14

15

AFC PUMP

AFC WINDOW ADJUST

VEE

OSCILLATOR +

OSCILLATOR –

AGC BIAS

AGC OUTPUT

RF INPUT

AFC OUTPUT

VCC

VIDEO FEEDBACK +

VIDEO –

VIDEO +

VIDEO FEEDBACK –

VIDEO OUTPUT

RF INPUT

AGC BIAS

RF INPUTS

AGC OUTPUT

LOCAL

OSCILLATOR

AFC WINDOW

ADJUST

VIDEO

FEEDBACK +

VIDEO +

VIDEO –

FEEDBACK –

VIDEO

OUTPUT

AFC PUMP

AFC OUTPUT

VIDEO

16

6

8

9

7

4

5

2

14

12

13

11

10

1

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