TDA2546A データシートの表示（PDF） - Philips Electronics

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TDA2546A

Quasi-split-sound circuit with 5,5 MHz demodulation

Philips Electronics 

Philips Semiconductors

Quasi-split-sound circuit

with 5,5 MHz demodulation

Product specification

TDA2546A

GENERAL DESCRIPTION

The TDA2546A is a monolithic integrated circuit for quasi-split-sound processing, including 5,5 MHz demodulation, in

television receivers.

Features

1st i.f. (V.C.: vision carrier plus S.C.: sound carrier)

• 3-stage gain controlled i.f. amplifier

• A.G.C. circuit

• Reference amplifier and limiter amplifier for vision carrier (V.C.) processing

• Linear multiplier for quadrature demodulation

2nd i.f. (5,5 MHz signal)

• 8-stage limiter amplifier

• Quadrature demodulator

• A.F. amplifier with de-emphasis

• AV switch

QUICK REFERENCE DATA

Supply voltage (pin 15)

Supply current (pin 15)

Minimum i.f. vision carrier input voltage (r.m.s. value)

Output voltage; 5,5 MHz (r.m.s. value)

Output voltage; 5,742 MHz (r.m.s. value)

I.F. control range

Signal-to-weighted-noise ratio (rel. to 1 kHz; 30 kHz deviation)

at 5,5 MHz

for 2T/20T pulses with white bars

at 5,742 MHz

A.F. output voltage (r.m.s. value)

VP = V15-16 typ.

IP = I15

typ.

VVC1-18 (rms) typ.

V14-16(rms)

typ.

V14-16(rms)

typ.

∆Gv

typ.

S + W/W

typ.

S + W/W

typ.

Vo6-16(rms)

typ.

12

V

57

mA

150

µV

100

mV

45

mV

64

dB

58

dB

56

dB

0,6

V

PACKAGE OUTLINES

18-lead DIL; plastic (SOT 102); SOT102-1; 1996 November 19.

February 1985

2

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