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SA58670A_2 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 02 — 23 October 2008 11 of 24
NXP Semiconductors
SA58670A
2.1 W/channel stereo class-D audio amplifier
(1) P
o
= 1.65 W; V
i
= 1.285 V (RMS).
(2) P
o
= 1.1 W; V
i
= 1.05 V (RMS).
(3) P
o
= 550 mW; V
i
= 741.6 mV (RMS).
a. R
L
=4Ω
(1) P
o
= 1.16 W; V
i
= 1.523 V (RMS).
(2) P
o
= 775 mW; V
i
= 1.245 V (RMS).
(3) P
o
= 380 mW; V
i
= 871.8 mV (RMS).
b. R
L
=8Ω
G
v(cl)
=6dB.
Fig 7. Total harmonic distortion-plus-noise as a function of frequency; V
DD
= 5.0 V
001aah492
f (Hz)
10 10
5
10
4
10
2
10
3
10
−1
10
−2
1
10
−3
THD+N
(%)
(1)
(2)
(3)
001aah493
f (Hz)
10 10
5
10
4
10
2
10
3
10
−2
10
−1
1
10
10
−3
THD+N
(%)
(1)
(2)
(3)