SA58670 查看數據表（PDF） - NXP Semiconductors.
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SA58670 Datasheet PDF : 25 Pages
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NXP Semiconductors
SA58670
2.1 W/channel stereo class-D audio amplifier
0.8
P
(W)
0.6
001aah511
(1)
0.4
P
(W)
0.3
001aah512
(1)
(2)
0.4
(3)
0.2
0.2
(2)
0.1
(3)
0
0
0.4
0.8
1.2
1.6
2.0
Po (W)
0
0
0.4
0.8
1.2
1.6
Po (W)
a. RL = 4 Ω
(1) VDD = 5.0 V.
(2) VDD = 3.6 V.
(3) VDD = 2.5 V.
Fig 14. Power dissipation as a function of output power
b. RL = 8 Ω
100
ηpo
80
60
(3)
(2)
001aah513
(1)
100
ηpo
80
(3)
(2)
60
001aah514
(1)
40
40
20
20
0
0
0.4
0.8
1.2
1.6
2.0
Po (W)
0
0
0.4
0.8
1.2
1.6
Po (W)
a. RL = 4 Ω
b. RL = 8 Ω
(1) VDD = 5.0 V.
(2) VDD = 3.6 V.
(3) VDD = 2.5 V.
Fig 15. Output power efficiency as a function of output power
SA58670_3
Product data sheet
Rev. 03 — 11 June 2009
© NXP B.V. 2009. All rights reserved.
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