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TDA9821 Datasheet(PDF) 7 Page - NXP Semiconductors

Part # TDA9821
Description  Dual channel TV FM intercarrier sound demodulator
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA9821 Datasheet(HTML) 7 Page - NXP Semiconductors

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1996 Nov 20
7
Philips Semiconductors
Product specification
Dual channel TV FM intercarrier
sound demodulator
TDA9821
Output amplifiers AF1 (pin 8) and AF2 (pin 7) and overall performance
VO
DC output voltage
1.8
2.1
2.5
V
Vo(rms)
output signal (RMS value)
0.4
0.5
0.6
V
clipping level
1.2
−−
V
IM
AC peak current
−−
1.5
mA
IO
DC source current
−−
2.0
mA
∆Vo/Vo
absolute drift of AF output signals
Tamb = 0 to 70 °C
0.7
dB
∆Vo1/∆Vo2 relative drift of AF output signals
Tamb = 0 to 70 °C
0.2
dB
∆V
AF(1-2)
negative/positive difference between
output signals
50
µs de-emphasis
0.3
1.0
dB
Ro
output resistance
100
−Ω
αcs(ar)
adjustment range of channel separation
Rs = 1.1 kΩ;
Rpot = 2.2 kΩ
1.5
−−
dB
THD
total harmonic distortion
50
µs de-emphasis
pin 8
0.1
0.3
%
pin 7
0.25
0.5
%
αAM
AM suppression of AF(1-2)
50
µs de-emphasis;
m = 0.3; fAM = 1 kHz
46
66
dB
signal plus noise-to-noise ratio
50
µs de-emphasis;
in accordance with
“CCIR 468-3”
64
68
dB
AFresp
LOW-level AF frequency response
∆VAF(1-2) = −3dB
−−
20
Hz
HIGH-level AF frequency response
200
−−
kHz
AMres(rms)
residual sound carrier signal and
harmonics (RMS value)
50
80
mV
α8/7
crosstalk attenuation between
AF outputs
f = 50 to 12500 Hz
60
70
dB
RR
supply voltage ripple rejection
VRR < 200 mV;
fr =20Hzto200 kHz
VP =5V
16
20
dB
VP =8V
24
28
dB
RR
supply voltage ripple rejection with
improved application for VP =5V
fr = 20 Hz to 3 kHz;
see Fig.3 and note 2
VP = 4.5 V
18
24
dB
VP = 4.75 V
21
27
dB
VP = 5.0 V
24
30
dB
VP = 5.5 V
21
27
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
SN
+
N
--------------


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