SA58672_15 Datasheet, PDF (8/27 Pages) NXP Semiconductors – 3.0 W mono class-D audio amplifier

NXP Semiconductors
SA58672
3.0 W mono class-D audio amplifier
400
I_DD
(mA)
300
200
(2)
(3)
002aad860
(1)
100
0
0
0.5
1.0
1.5
2.0
P_o (W)
a. R_L = 2 × 15 µH + 8.03 Ω
(1) V_DD = 5.0 V.
(2) V_DD = 3.6 V.
(3) V_DD = 2.5 V.
Fig 7. Supply current as a function of output power
800
I_DD
(mA)
600
400
(3)
200
002aad861
(1)
(2)
0
0
1
b. R_L = 2 × 15 µH + 4.11 Ω
2
3
P_o (W)
8
I_DD
(mA)
6
4
2
002aad862
(1)
(2)
8
I_DD(sd)
(µA)
6
4
2
002aad863
(1)
(2)
(3)
0
2.5
3.5
4.5
5.5
V_DD (V)
0
0
0.5
1.0
1.5
2.0
V_SD (V)
(1) With ferrite bead + 1 nF capacitor on outputs;
R_L = 2 × 15 µH + 8.03 Ω.
(2) Without ferrite beads + 1 nF capacitor on outputs;
R_L = 2 × 15 µH + 8.03 Ω or no load.
Fig 8. Supply current as a function of supply voltage
(1) V_DD = 5.0 V.
(2) V_DD = 3.6 V.
(3) V_DD = 2.5 V.
Fig 9. Shutdown mode supply current as a function
of shutdown voltage
SA58672_4
Product data sheet
Rev. 04 — 8 June 2009
© NXP B.V. 2009. All rights reserved.
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