SA58670A_2 © NXP B.V. 2008. All rights reserved.

Product data sheet Rev. 02 — 23 October 2008 8 of 24

NXP Semiconductors SA58670A
2.1 W/channel stereo class-D audio amplifier

a. Gv(cl) =24dB.

b. Gv(cl) = 6 dB.

fi=1 kHz.

(1) VDD= 2.5 V.

(2) VDD= 3.6 V.

(3) VDD= 5.0 V.

Fig 4. Total harmonic distortion-plus-noise as a function of output power; RL=4Ω

001aah486
Po (W)
10−510110−1
10−410−2
10−3
10−1
1
10
102
10−2
THD+N
(%)
(1) (2) (3)
001aah487
Po (W)
10−510110−1
10−410−2
10−3
10−1
1
10
102
10−2
THD+N
(%) (1) (2) (3)