TDA9820 Просмотр технического описания (PDF) - Philips Electronics
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TDA9820 Datasheet PDF : 20 Pages
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Philips Semiconductors
Multistandard/dual channel TV FM
intercarrier sound demodulator
Product specification
TDA9820
SYMBOL
PARAMETER
CONDITIONS
S
negative slope of free-running frequency R11 = 22 kΩ
adjustment
∆f1
negative/positive catching range of PLLs
∆f2
negative/positive holding range of PLLs
Output amplifiers AF1 (pin 8) and AF2 (pin 7)
VO
Vo(rms)
DC output voltage
output signal (RMS value)
clipping level
IM
AC peak current
IO
∆Vo/Vo
DC source current
absolute drift of AF output signals
∆Vo1/∆Vo2 relative drift of AF output signals
∆VAF(1-2) negative/positive difference between
output signals
Ro
αcs(ar)
output resistance
adjustment range of channel separation
THD
total harmonic distortion
αAM
S------N+-----N---
AFresp
AM suppression of AF(1-2)
signal plus noise-to-noise ratio
LOW-level AF frequency response
HIGH-level AF frequency response
Tamb = 0 to 70 °C
Tamb = 0 to 70 °C
50 µs de-emphasis
Rs = 1.1 kΩ;
Rpot = 2.2 kΩ
50 µs de-emphasis
pin 8
pin 7
50 µs de-emphasis;
m = 0.3; fAM = 1 kHz
50 µs de-emphasis;
in accordance with
“CCIR 468-3”
∆VAF(1-2) = −3 dB
AMres(rms)
α8/7
residual sound carrier signal and
harmonics (RMS value)
crosstalk attenuation between
AF outputs
f = 50 to 12500 Hz
RR
supply voltage ripple rejection
VRR < 200 mV;
fr = 20 Hz to 200 kHz
VP = 5 V
VP = 8 V
RR
supply voltage ripple rejection with
fr = 20 Hz to 3 kHz;
improved application for VP = 5 V
see Fig.3 and note 2
VP = 4.5 V
VP = 4.75 V
VP = 5.0 V
VP = 5.5 V
MIN. TYP. MAX. UNIT
−
200
−
kHz/kΩ
1.4
1.9
−
2.0
3.0
−
MHz
MHz
1.8
2.1
2.5
V
0.4
0.5
0.6
V
1.2
−
−
V
−
−
1.5
mA
−
−
2.0
mA
−
0.7
−
dB
−
0.2
−
dB
−
0.3
1.0
dB
−
100
150
Ω
1.5
−
−
dB
−
0.1
0.3
%
−
0.25 0.5
%
46
66
−
dB
64
68
−
dB
−
−
20
Hz
200
−
−
kHz
−
50
80
mV
60
70
−
dB
16
20
−
dB
24
28
−
dB
18
24
−
dB
21
27
−
dB
24
30
−
dB
21
27
−
dB
1996 Nov 20
8
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