NXP Semiconductors SA58670A Stereo Amplifier User Manual


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SA58670A_2 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 02 — 23 October 2008 14 of 24
NXP Semiconductors
SA58670A
2.1 W/channel stereo class-D audio amplifier
(1) left channel; R
L
=8Ω.
(2) right channel; R
L
=4Ω.
(3) right channel; R
L
=8Ω.
Fig 11. Supply voltage as a function of shutdown
voltage
Fig 12. Supply current as a function of supply voltage
V
SDR;
V
SDL
(V)
0321
001aah507
2
4
6
V
DD
(V)
0
2.5 V
3.6 V
5 V
V
DD
(V)
2.5 5.54.53.5
001aah508
3.5
4.5
5.5
I
DD
(mA)
2.5
(1)
(2)
(3)
a. R
L
=4Ω b. R
L
=8Ω
(1) V
DD
= 2.5 V.
(2) V
DD
= 3.6 V.
(3) V
DD
= 5.0 V.
Fig 13. Supply current as a function of output power
0
1200
800
400
1600
I
DD
(mA)
P
o
(W)
0 2.01.60.8 1.20.4
001aah509
(1)
(2) (3)
0
600
400
200
800
I
DD
(mA)
P
o
(W)
0 1.61.20.4 0.8
001aah510
(1)
(2) (3)
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