LA75520K View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LA75520K

IF Signal Processing (VIF+SIF) IC that Supports the PAL Video Standard for TV Sets and VCRs

SANYO -> Panasonic 

Pin Assignment

LA75520K

DE-EMPHASIS C 1

SIF AGC FILTER 2

FM PLL FILTER 3

VCC 4

VIDEO OUTPUT 5

EQ FILTER 6

SIF SYSTEM SW A 7

APC FILTER 8

SIF SYSTEM SW B 9

VIF FREQUENCY SW 10

REFERENCE CP INPUT 11

AFT OUTPUT 12

LA75520K

Top View

24 AUDIO OUTPUT

23 FILTER CONTROL C

22 AUDIO BIAS FILTER

21 SIF CARRIER OUTPUT

20 RF AGC VR

19 GND

18 VIF IN1

17 VIF IN2

16 VIF AGC FILTER

15 AFT MUTE LEVEL

14 RF AGC OUTPUT

13 1st SIF INPUT

Block Diagram and Sample Application

AUDIO

OUTPUT

SOUND CARRIER

OUTPUT

SAWF(P)

24 23 22 21 20 19 18 17

DE-

EMP

AMP

FM

DET

RF

AGC

VIF

AMP

IF

AGC

AMP

SPLI

INT

TRAP

VIDEO

DET

OMD

SIF

AMP

EQ

AGC

AMP

VIF/SIF

INPUT

RF AGC

OUTPUT

V4

SW15 V3

V2

SAWF

(S)

V1

SW13

16 15 14 13

SW10

V3

V2

V1

VIF FREQUENCY

39.5MHz

38.9MHz

38.0MHz

SW11

OPEN

SHORT

REFERENCE

4.43MHz

4.0MHz

TRAP

1 stSIF

AMP

COM

AGC

PHASE

CTL

APC

VCO

AFT

SW

MODE

CTRL

SW13

OPEN

SHORT

SYSTEM

SPLIT

INTER

SW15 ATF MUTE LEVEL B/G TRAP SHIFT

V4

0

V3 MIDDLE(VCC/2)

V2

HI(VCC)

V1

+250kHz

0

+250kHz

Pin7

Hi

Hi

Lo

Lo

Pin9

Hi

Lo

Hi

Lo

SIF SYSTEM

B/G

I

D/K

M

1 2 3 4 5 6 7 8 9 10 11 12

SYSTEM SW

A

SW10

V3

V2

V1

SYSTEM SW

B

VIF FREQ.

4.43/4MHz

AFT OUTPUT

VCC(5V)

VIDEO

OUTPUT

PCA01178

No.A0648-6/12

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