TDA8948J_1
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 27 February 2008
13 of 26
NXP Semiconductors
TDA8948J
4-channel audio amplifier
V
CC
= 17 V; R
L
= 4
Ω
.
V
CC
= 17 V; R
L
= 8
Ω
.
a. SE
b. BTL
Fig 8.
Total power dissipation as a function of channel output power per channel
(worst case, all channels driven)
010aaa430
0
20
P
o
(W)
20
0
4
8
12
16
4
P
tot
(W)
8
12
16
P
o
(W)
0
20
16
8
12
4
010aaa432
8
12
4
16
20
Ptot
(W)
0
V
CC
= 17 V; R
L
= 4
Ω
.
V
CC
= 17 V; R
L
= 8
Ω
.
a. SE
b. BTL
Fig 9.
Channel separation as a function of frequency (no band-pass 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
