TDA4340X Просмотр технического описания (PDF) - Siemens AG
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TDA4340X Datasheet PDF : 15 Pages
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TDA 4340X
3.3 AC/DC Characteristics (cont’d)
VS = 10 V, TA = 25 °C
Parameter
Symbol
Limit Values Unit
min. typ. max.
Test Condition
Mono/Stereo Control
Pilot threshold
voltage:
– for Stereo
ON
– for Stereo
OFF
– hysteresis
Stereo indicator
output:
– Pilot OFF
– Pilot ON
VPIL on
VPIL off
V18 off
I18 on
20
5
14
1.5 3
30 mVrms
mVrms
dB
VPIL on/VPIL off
0.5 V
10 µA
I18 = 1 mA
V18 = 13.2 V
External Control Voltages (active low)
Threshold voltage V19 thr
1
1.2
V
for external mono
control (pin 19)
Threshold voltage V8 thr
1
1.5
V
for MUTE (pin 8)
Threshold voltage V7 thr
1
1.5
V
for VCO OFF (pin 7)
Deemphasis
Reference voltage V17
Control Range
Minimum
τmin
Maximum
τmax
τdeemph = τnom
V15
τdeemph =
V15
1.5 × τnom
τdeemph =
V15
2.7 × τnom
0.5
4.5 V
Reference level 100 Hz
45 50 55 µs
135 150 165 µs
V17
V17 – V17 – V17 – mV
220 170 120
V17 – V17 – V17 – mV
400 300 200
V17 = 3 V, V15 = 6 V,
Cdeemph = 6.8 nF
V17 = 3 V, V15 = 0 V
Cdeemph = 6.8 nF
V17 = 3 V, Cdeemph = 6.8 nF
V17 = 3 V, Cdeemph = 6.8 nF
V17 = 3 V, Cdeemph = 6.8 nF
Semiconductor Group
9
04.96
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