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TDA3845

Quasi split-sound circuit and AM demodulator

Philips Electronics 

Philips Semiconductors

Quasi split-sound circuit and AM

demodulator

(1) not for TDA3845T, pin 11 not connected.

Fig.2 Pin configuration.

Objective specification

TDA3845; TDA3845T

PINNING

SYMBOL PIN

DESCRIPTION

IF2

1 IF amplifier input 2

n.c.

2 not connected

AGC

3 AGC control capacitor

OPT

4 optional capacitor (see note 10 to

the characteristics)

PMD

5 peak/mean detector capacitor

AM

6 AM output

SW

7 FM/AM switch

LCREF

8 LC reference circuit for the picture

carrier

LCREF

9 LC reference circuit for the picture

carrier

n.c.

10 not connected

VP2

11 positive supply voltage 2

(+12 V); note 1

ICO

12 intercarrier output

GND

13 ground (0 V)

VP1

14 positive supply voltage 1 (+5 V)

n.c.

15 not connected

IF1

16 IF amplifier input 1

Note to Pinning

1. Not for TDA3845T, pin 11 not connected.

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC134)

SYMBOL

PARAMETER

VP1

VP2

Tamb

Tstg

supply voltage

pin 14

pin 11 (not for TDA3845T)

operating ambient temperature

storage temperature

MIN.

MAX.

UNIT

4.5

8.8

V

10.8

13.2

V

0

+70

°C

−25

+125

°C

January 1993

4

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