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TFA9842AJ Datasheet PDF : 18 Pages
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Philips Semiconductors
TFA9842AJ
7.5 W stereo power amplifier with volume control
11. Static characteristics
Table 8. Static characteristics
VCC = 17 V; Tamb = 25 °C; RL = 4 Ω; VI(VC) = VCC; Vi = 0 V; measured in test circuit of Figure 11;
unless otherwise specified.
Symbol Parameter
Conditions
Min Typ Max Unit
VCC
Iq
Istb
VO
VI(VC)
supply voltage
operating
[1] 9
17
quiescent current
RL = ∞ Ω
-
60
standby current
output voltage
VI(VC) = 0 V
-
-
[2] -
9
input voltage on pin VC On mode (maximum
gain)
5.0 -
28
V
100 mA
150 µA
-
V
VCC
V
Volume control mode
1.5 -
5.0
V
Mute mode
1.2 -
1.5
V
Standby mode
0
-
0.8
V
II(VC)
input current on pin VC 0 V < VI(VC) < VCC
-
-
20
µA
[1] A minimum load of 3 Ω is allowed at supply voltages > 22 V.
[2] The DC output voltage with respect to ground is approximately 0.5VCC.
12. Dynamic characteristics
Table 9. Dynamic characteristics
VCC = 17 V; Tamb = 25 °C; RL = 4 Ω; f = 1 kHz; VI(VC) = VCC; measured in test circuit Figure 11;
unless otherwise specified.
Symbol Parameter
Conditions
Min Typ Max Unit
Po
THD
output power
total harmonic
distortion
THD = 10 %; RL = 4 Ω
7
7.5 -
W
THD = 0.5 %; RL = 4 Ω
-
6.1 -
W
Po = 1 W
-
0.1 0.5 %
Gv(max)
∆Gv
Vi
maximum voltage gain
voltage gain range
input voltage
VI(VC) > 5.0 V
1.5 V < VI(VC) < 5.0 V
Gain = 0 dB;
THD < 1 %
25
26
27
dB
-
80
-
dB
1.0 -
-
V
Zi
Vn(o)
SVRR
input impedance
noise output voltage
supply voltage ripple
rejection
fripple = 1 kHz
fripple = 100 Hz to
20 kHz
40
60
-
kΩ
[1] -
150 -
µV
[2] -
60
-
dB
[2] -
60
-
dB
Vo(mute)
αcs
|∆Gv(max)|
mute output voltage
channel separation
maximum voltage gain
difference
ZS = 0 Ω
[3] -
-
150 µV
50
60
-
dB
-
-
1
dB
[1] The noise output voltage is measured at the output in a frequency range from 20 Hz to 22 kHz
(unweighted), with a source impedance ZS = 0 Ω at the input.
TFA9842AJ_1
Preliminary specification
Rev. 01 — 28 April 2006
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
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