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TFA9842J/N1,112

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
Philips Semiconductors
TFA9842J
2-channel audio amplifier (2 x SE or 1 x BTL)
Preliminary data Rev. 01 — 26 April 2004 10 of 21
9397 750 12013
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
THD = 10 %; R
L
=4Ω; f = 1 kHz. THD = 10 %; R
L
=8Ω; f = 1 kHz.
a. SE. b. BTL.
Fig 6. Output power as function of supply voltage.
P
o
(W)
81410 16 18
V
CC
(V)
12
0
15
9
12
3
6
MDB809
P
o
(W)
81410 16 18
V
CC
(V)
12
0
15
9
12
3
6
MDB810
V
CC
= 18 V; f = 1 kHz; R
L
=4Ω.V
CC
= 18 V; f = 1 kHz; R
L
=8Ω.
a. SE. b. BTL.
Fig 7. Total harmonic distortion-plus-noise as function of output power.
10
2
10
1
10
−1
10
−2
MCE488
10
−1
10
2
110
P
o
(W)
THD+N
(%)
10
2
10
1
10
−1
10
−2
MCE487
10
−1
1
THD+N
(%)
10
P
o
(W)
10
2
Philips Semiconductors
TFA9842J
2-channel audio amplifier (2 x SE or 1 x BTL)
Preliminary data Rev. 01 — 26 April 2004 11 of 21
9397 750 12013
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
V
CC
=17V; P
o
= 1 W; R
L
=4Ω.V
CC
= 17 V; P
o
= 1 W; R
L
=8Ω.
a. SE. b. BTL.
Fig 8. Total harmonic distortion-plus-noise as function of frequency.
10
1
10
−1
10
−2
MCE489
10
THD+N
(%)
f (Hz)
10
2
10
3
10
4
10
5
10
1
10
−1
10
−2
MCE490
10
THD+N
(%)
f (Hz)
10
2
10
3
10
4
10
5
V
CC
=18V; R
L
=4Ω.V
CC
= 18 V; R
L
=8Ω.
a. SE. b. BTL.
Fig 9. Total power dissipation as function of channel output power per channel (worst case, both channels
driven).
020
P
o
(W)
10
0
2
4
6
8
4
P
D
(W)
81216
MCE507
020
P
o
(W)
10
0
2
4
6
8
4
P
D
(W)
81216
MCE508
Philips Semiconductors
TFA9842J
2-channel audio amplifier (2 x SE or 1 x BTL)
Preliminary data Rev. 01 — 26 April 2004 12 of 21
9397 750 12013
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
V
CC
=17V; R
L
=4Ω.V
CC
= 17 V; R
L
=8Ω.
a. SE. b. BTL.
Fig 10. Channel separation as function of frequency (no bandpass filter applied).
−100
0
−80
−60
−40
−20
MCE495
10
α
cs
(dB)
f (Hz)
10
2
10
3
10
4
10
5
−100
0
−80
−60
−40
−20
MCE496
10
α
cs
(dB)
f (Hz)
10
2
10
3
10
4
10
5
V
CC
=17V; R
source
=0Ω; V
ripple
= 300 mV (RMS);
a bandpass filter of 20 Hz to 22 kHz has been applied;
inputs short-circuited.
V
CC
= 17 V; R
source
=0Ω; V
ripple
= 300 mV (RMS);
a bandpass filter of 20 Hz to 22 kHz has been applied;
inputs short-circuited.
a. SE. b. BTL.
Fig 11. Supply voltage ripple rejection as function of frequency.
−80
−60
−40
−20
0
MCE497
10
SVRR
(dB)
f (Hz)
10
2
10
3
10
4
10
5
−80
−60
−40
−20
0
MCE498
10
SVRR
(dB)
f (Hz)
10
2
10
3
10
4
10
5
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TFA9842J/N1,112

Mfr. #:
Buy TFA9842J/N1,112
Manufacturer:
NXP Semiconductors
Description:
IC AMP AUDIO PWR 15W STER 9SIL
Lifecycle:
New from this manufacturer.
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