NXP Semiconductors TDA8948J, Лист данных продукта

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TDA8948J_1 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 01 — 27 February 2008 11 of 26
NXP Semiconductors
TDA8948J
4-channel audio amplifier
a. BTL; V
CC
= 17 V; V
i
= 50 mV.
Fig 4. AC output voltage as a function of voltage on pin MODE1
20
V
MODE1
(V)
0 4 8 12
V
o
(
µ
V)
16
10
7
10
6
10
5
10
4
10
3
10
2
10
1
coc005
f
i
=1 kHz
(1) 1
Ω
SE at THD = 10 %
(2) 2
Ω
SE at THD = 10 %
(3) 3
Ω
SE at THD = 10 %
(4) 4
Ω
SE at THD = 10 %
(5) 8
Ω
SE at THD = 10 %
f
i
= 1 kHz
(1) 16
Ω
BTL at THD = 10 %
(2) 8
Ω
BTL at THD = 10 %
(3) 6
Ω
BTL at THD = 10 %
(4) 4
Ω
BTL at THD = 10 %
(5) 2
Ω
BTL at THD = 10 %
a. SE: THD = 10 %; one channel b. BTL: THD = 10 %; one channel
Fig 5. Maximum output power as a function of supply voltage at various loads
V
P
(V)
8 28 24 16 20 12
010aaa111
10
20
30
P
o(max)
(W)
0
(5)
(2) (3) (4)
(1)
V
P
(V)
8 28 24 16 20 12
010aaa112
20
40
60
P
o(max)
(W)
0
(4)
(5)
(3) (2)
(1)