TDA4504B 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

TDA4504B

Small signal combination for multistandard colour TV

Philips Electronics 

Philips Semiconductors

Small signal combination for multistandard colour TV

Product specification

TDA4504B

FEATURES

• Gain controlled vision IF amplifier

• Synchronous demodulator for negative and positive

demodulation

• AGC detector operating on peak sync amplitude for

negative demodulation and on peak white level for

positive demodulation

• Tuner AGC

• AFC circuit with two control polarities and on/off-switch

• Video preamplifier

• Video switch to select either the internal video signal or

an external video signal

• Horizontal oscillator and synchronization circuit with two

control loops

• Vertical synchronization (divider system), ramp

generator and driver with automatic amplitude

adjustment for 50 and 60 Hz

• Transmitter identification (mute)

• Sandcastle pulse generation

• VCR/auto VCR switch

• Start-up circuit

• Vertical guard

GENERAL DESCRIPTION

Having the capability to demodulate IF signals with either

positive or negative-going video information, the

TDA4504B (Fig.1) is contained within a 32 pin

encapsulation. It includes a three-stage vision IF amplifier,

mute circuit, AFC and AGC circuitry, fully synchronised

horizontal and vertical timebases with drive circuits and

integral three-level sandcastle pulse generator.

A functional colour tv receiver can thus be realized with the

addition of a tuner, audio demodulator and amplifier,

chroma decoder and respective line and field deflection

circuitry.

ORDERING INFORMATION

EXTENDED

TYPE NUMBER

TDA4504B

PINS

32

Note

1. SOT201-1; 1996 November 29

PIN POSITION

DIL

PACKAGE

MATERIAL

plastic

CODE

SOT201(1)

February 1992

2

Share Link: