tda9820t-v1 NXP Semiconductors, tda9820t-v1 Datasheet - Page 3
tda9820t-v1
Manufacturer Part Number
tda9820t-v1
Description
Multistandard/dual Channel Tv Fm Intercarrier Sound Demodulator
Manufacturer
NXP Semiconductors
Datasheet
1.TDA9820T-V1.pdf
(20 pages)
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Philips Semiconductors
BLOCK DIAGRAM
1996 Nov 20
handbook, full pagewidth
Multistandard/dual channel TV FM
intercarrier sound demodulator
(1) Resistor and potentiometer between capacitor and earth are inserted if adjustment of stereo channel separation is required.
intercarrier
4.72 MHz (M)
5.74 MHz (B/G)
6.74 MHz (D/K)
4.5 MHz (M)
5.5 MHz (B/G)
6.0 MHz (I)
6.5 MHz (D/K)
or
or
1
16
15
3
2
4.5 to 8.8 V
13
V =
SUPPLY
P
14
12
AMPLIFIER 1
AMPLIFIER 2
Fig.1 Block diagram.
7-STAGE
7-STAGE
11
LIMITER
LIMITER
VCO
TDA9820
ref
mute
3
optional stereo
channel separation
adjustment
VCO 1
VCO 2
R s
R pot
(1)
(1)
CONTROL
UNIT
10
9
MHA420
8
5
6
7
Product specification
TDA9820
S
S
V
V
1
2
AF2
AF1
standard
switch
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