tfa9843aj NXP Semiconductors, tfa9843aj Datasheet - Page 9

• Manufacturer Part Number: tfa9843aj
• Description: Tfa9843aj 20 W Stereo Power Amplifier With Volume Control
• Manufacturer: NXP Semiconductors

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