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Philips Semiconductors
50
P
o
(W)
40
30
20
10
0
8
12
THD = 10 %; R
L
Fig 7. Output power as a function of supply voltage
0
cs
(dB)
20
40
60
80
100
2
10
10
V
= 18 V; R
= 4
CC
L
Fig 9. Channel separation as a function of frequency
(no bandpass filter applied)
TFA9843AJ_1
Preliminary data sheet
mce491
16
20
24
V
(V)
CC
= 4 ; f = 1 kHz
mce495
3
4
10
10
f (Hz)
20 W stereo power amplifier with volume control
10
P
tot
(W)
8
6
4
2
0
28
0
V
CC
Fig 8. Total power dissipation as a function of channel
output power per channel (worst case, both
channels driven)
0
SVRR
(dB)
20
40
60
80
5
10
10
V
CC
bandpass filter of 20 Hz to 22 kHz has been applied;
inputs short-circuited.
Fig 10. Supply voltage ripple rejection as a function of
frequency
Rev. 01 — 28 April 2006
TFA9843AJ
4
8
12
= 18 V; R
= 4
L
2
3
10
10
= 18 V; Z
= 0 ; V
= 300 mV (RMS); a
S
ripple
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
mce507
16
20
P
(W)
o
mce497
4
5
10
10
f (Hz)
9 of 19
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