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TFA9843J Datasheet PDF : 21 Pages
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Philips Semiconductors
TFA9843J
2-channel audio amplifier (2 x SE or 1 x BTL)
12. Dynamic characteristics
Table 9: Dynamic characteristics SE
VCC = 18 V; Tamb = 25 °C; RL = 4 Ω; f = 1 kHz; VMODE = VCC; measured in test circuit Figure 19; unless otherwise specified.
Symbol Parameter
Conditions
Min
Typ
Max
Unit
Po
output power
THD = 10 %; RL = 4 Ω
7
8.5
-
W
THD = 0.5 % RL = 4 Ω
-
6.5
-
W
VCC = 22 V;
-
14
-
W
THD = 10 %; RL = 4 Ω
THD
total harmonic distortion
Po = 1 W
-
0.1
0.5
%
Gv
SE voltage gain
25
26
27
dB
Zi
Vn(o)
SVRR
Vo(mute)
input impedance
noise output voltage
supply voltage ripple
rejection
fripple = 1 kHz
fripple = 100 Hz to 20 kHz
output voltage in mute mode
40
[1] -
[2] -
[2] -
[3] -
60
-
kΩ
150
-
µV
60
-
dB
60
-
dB
-
150
µV
αcs
channel separation
Rsource = 0 Ω
50
60
-
dB
|Gv|
channel unbalance
-
-
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
Rsource = 0 Ω at the input.
[2] Supply voltage ripple rejection is measured at the output, with a source impedance Rsource = 0 Ω at the input and with a frequency range
from 20 Hz to 22 kHz (unweighted). The ripple voltage is a sine wave with a frequency fripple and an amplitude of 300 mV (RMS), which
is applied to the positive supply rail.
[3] Output voltage in mute mode (VMODE = 7 V) and an input voltage of 1 V (RMS) in a bandwidth from 20 Hz to 22 kHz, so including noise.
Table 10: Dynamic characteristics BTL
VCC = 18 V; Tamb = 25 °C; RL = 8 Ω; f = 1 kHz; VMODE = VCC; measured in test circuit Figure 20; unless otherwise specified.
Symbol Parameter
Conditions
Min
Typ
Max
Unit
Po
output power
THD = 10 %; RL = 8 Ω
16
18
-
W
THD = 0.5 %; RL = 8 Ω
-
14
W
VCC = 22 V;
-
29
-
W
THD = 10 %; RL = 8 Ω
THD
total harmonic distortion
Po = 1 W
-
0.05
0.5
%
Gv
BTL voltage gain
31
32
33
dB
Zi
Vn(o)
SVRR
Vo(mute)
input impedance
noise output voltage
supply voltage ripple
rejection
fripple = 1 kHz
fripple = 100 Hz to 20 kHz
output voltage in mute mode
20
[1] -
[2] -
[2] -
[3] -
30
-
kΩ
200
-
µV
65
-
dB
65
-
dB
-
250
µV
αcs
channel separation
Rsource = 0 Ω
50
65
-
dB
|Gv|
channel unbalance
-
-
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
Rsource = 0 Ω at the input.
[2] Supply voltage ripple rejection is measured at the output, with a source impedance Rsource = 0 Ω at the input and with a frequency range
from 20 Hz to 22 kHz (unweighted). The ripple voltage is a sine wave with a frequency fripple and an amplitude of 300 mV (RMS), which
is applied to the positive supply rail.
9397 750 12587
Preliminary data
Rev. 02 — 19 January 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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