SA58670 Datasheet, PDF (14/25 Pages) NXP Semiconductors – 2.1 W/channel stereo Class D audio amplifier

NXP Semiconductors
SA58670
2.1 W/channel stereo class-D audio amplifier
6
V_DD
(V)
4
2
3.6 V
2.5 V
001aah507
5V
5.5
I_DD
(mA)
4.5
3.5
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(1)
(2)
(3)
0
0
1
2
3
V_SDR; V_SDL (V)
Fig 11. Supply voltage as a function of shutdown
voltage
2.5
2.5
3.5
4.5
5.5
V_DD (V)
(1) left channel; R_L = 8 Ω.
(2) right channel; R_L = 4 Ω.
(3) right channel; R_L = 8 Ω.
Fig 12. Supply current as a function of supply voltage
1600
I_DD
(mA)
1200
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800
(1)
(2) (3)
400
0
0
0.4
0.8
1.2
1.6
2.0
P_o (W)
a. R_L = 4 Ω
(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
800
I_DD
(mA)
600
400
(1) (2) (3)
200
0
0
0.4
0.8
b. R_L = 8 Ω
001aah510
1.2
1.6
P_o (W)
SA58670_1
Product data sheet
Rev. 01 — 4 January 2008
© NXP B.V. 2008. All rights reserved.
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