TDA9830 데이터 시트보기 (PDF) - Philips Electronics
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TDA9830 Datasheet PDF : 15 Pages
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Philips Semiconductors
TV sound AM-demodulator and audio source switch
Product specification
TDA9830
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
V8−13
crosstalk and mute attenuation
20 Hz to 20 kHz 80
90
−
dB
V7,8,9−13 DC-potential
2.00
2.15
2.30
V
R7,9−13 input resistance
40
50
60
kΩ
G7,9−8
gain of audio switch
−0.5
0
+0.5
dB
V10−13
audio switching voltage to activate pin 7
0
−
0.8
V
V10−13
audio switching voltage to activate pin 9 note 4
1.5
−
VP
V
V12−13
input voltage for MUTE-ON
0
−
0.8
V
input voltage for MUTE-OFF
note 4
1.5
−
VP
V
I10, 12
output current of switching-pins at
V10, 12-13 = 0 V
−110
−145
−185
µA
V8-13
DC-plop at AF output pin with switching note 5
from internal to external audio signal or
−
5
10
mV
to mute-state or vice-versa
R8
output resistance
70
100
150
Ω
Ripple rejection note 6
RR
AF signal output:
αRR = Vripple on VP / Vripple on Vout
AF signal output with AF signal from
external source
26
30
−
dB
40
44
−
dB
Notes to the characteristics
1. In the power supply voltage range VP1 = 5.0 V up to 8.0 V the performance will not change essentially.
With power supply from VP2 = 12.0 V the performance will be comparable with the performance at VP1 = 5.0 V up to
8.0 V.
The unused power supply pin must be not connected.
2. Start of gain control (low IF input signal) at −3 dB AF signal reduction at pin 6.
3. End of gain control (high IF input signal) at +1 dB AF signal expansion at pin 6.
4. This state is also valid for pin left open-circuit.
5. If a DC-plop of about maximum 100 mV is acceptable when switching from internal to external audio-signal or from
internal to mute state or vice versa, the capacitor between pin 6 and 7 can be omitted and pin 6 can be connected
to pin 7.
6. Measured with Vripple = 200 mV(p-p) at 70 Hz superimposed on supply voltage VP.
7. Dependent on value of AGC capacitor.
June 1994
7
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