noise reduction. TDA8740 Datasheet

TDA8740 reduction. Datasheet pdf. Equivalent

Part TDA8740
Description Satellite sound circuit with noise reduction
Feature INTEGRATED CIRCUITS DATA SHEET TDA8740; TDA8740H Satellite sound circuit with noise reduction Prod.
Manufacture NXP
Datasheet
Download TDA8740 Datasheet

INTEGRATED CIRCUITS DATA SHEET TDA8740; TDA8740H Satellite TDA8740 Datasheet
INTEGRATED CIRCUITS DATA SHEET TDA8740; TDA8740H Satellite TDA8740H Datasheet
Recommendation Recommendation Datasheet TDA8740 Datasheet




TDA8740
INTEGRATED CIRCUITS
DATA SHEET
TDA8740; TDA8740H
Satellite sound circuit with noise
reduction
Product specification
Supersedes data of November 1992
File under Integrated Circuits, IC02
October 1994
Philips Semiconductors



TDA8740
Philips Semiconductors
Satellite sound circuit with noise reduction
Product specification
TDA8740; TDA8740H
FEATURES
Demodulation of main audio signal using wide band PLL
(lock range selectable)
Demodulation of secondary audio signals using wide
band PLL
HF input selection: two-out-of-eight secondary audio
signals can be selected
Noise reduction of the secondary audio signals
Output selection: stereo, language 1, language 2, main
audio and external
Mute control
Line outputs (SCART level).
APPLICATIONS
Satellite receivers
TV sets
Video recorders.
GENERAL DESCRIPTION
The TDA8740; TDA8740H is a multi-function sound IC for
use in satellite receivers, television sets and video
recorders. The pin numbers given in parenthesis
throughout this document refer to the QFP44 package.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS MIN. TYP. MAX. UNIT
Supply
VP supply voltage
Main channel
VIN3(rms)
fOM
VOM
S/N(A)
input sensitivity pin 18 (14) (RMS value)
lock range PLL demodulator
either
or
output voltage pin 23 (19)
signal-to-noise ratio
Secondary channels
VIN1,IN2
fOS1,2
VOR,OL
S/N(A)
input sensitivity pins 2, 4, 6, 8, 10, 12, 14 and 16
(1, 3, 5, 7, 9, 11, 40 and 42) (RMS value)
lock range PLL demodulators
output voltage pins 24 and 25 (20 and 21)
signal-to-noise ratio
Crosstalk
αS/M
αM/S
αS/S
crosstalk from secondary to main channel
crosstalk from main to secondary channel
crosstalk between secondary channels
8
S/N(A) = 40 dB
A-weighted
5.5
10.0
9
62
S/N(A) = 40 dB
A-weighted
6.0
8
72
12
1.0
6
70
0.8
6
80
74
74
74
13.2 V
2.0 mV
7.5 MHz
11.5 MHz
4 dBV
dB
1.5 mV
8.5 MHz
4 dBV
dB
dB
dB
dB
October 1994
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