TDA8740 Datasheet, PDF (4/24 Pages) NXP Semiconductors – Satellite sound circuit with noise reduction

Philips Semiconductors
Satellite sound circuit with noise reduction
Product specification
TDA8740; TDA8740H
PINNING
SYMBOL
n.c.
IN-1A
I_{sel 1}
IN-1B
I_{sel 2}
IN-1C
MCS
IN-1D
HFGND
IN-2A
SCD
IN-2B
MUTE
IN-2C
O_{sel L}
IN-2D
O_{sel R}
IN-3
V_REF
C_{D M}
C_{C M}
V_P
O_M
O_R
O_L
EXT/INT
EXT_R
EXT_L
C_{ATT/REC R}
RECT_R
C_{NR D R}
C_{D R}
C_{C R}
AFGND
C_{C L}
C_{D L}
C_{NR D L}
RECT_L
C_{ATT/REC L}
October 1994
PIN
SDIP42
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
PIN
QFP44
39
40
41
42
43
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20
21
22
23
24
25
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30
31
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35
DESCRIPTION
not connected
intercarrier input A for Channel 1 (left)
input select switch bit 1
intercarrier input B for Channel 1 (left)
input select switch bit 2
intercarrier input C for Channel 1 (left)
main channel PLL lock-in range select/disable
intercarrier input D for Channel 1 (left)
ground for HF section
intercarrier input A for Channel 2 (right)
secondary channels PLLs disable
intercarrier input B for Channel 2 (right)
mute switch
intercarrier input C for Channel 2 (right)
output select switch bit 1 (left)
intercarrier input D for Channel 2 (right)
output select switch bit 2 (right)
intercarrier input for main channel
decoupling capacitor for reference voltage
de-emphasis capacitor for main channel
audio pass-through capacitor input for main channel
positive supply voltage
main channel output
right channel output
left channel output
output switch bit 3 (external/internal)
external audio input (right)
external audio input (left)
attack/recovery capacitor (right)
rectifier DC decoupling (right)
noise reduction de-emphasis capacitor (right)
fixed de-emphasis capacitor (right)
audio pass-through capacitor input for right channel
ground for AF section
audio pass-through capacitor input for left channel
fixed de-emphasis capacitor (left)
noise reduction de-emphasis capacitor (left)
rectifier DC decoupling (left)
attack/recovery capacitor (left)
4