SA58671 PDF Datasheet
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Description
This is 1.2 W/channel Stereo Class-D Audio Amplifier. SA58671
1.2 W, channel stereo class-D audio ampli er
Rev. 01 21 December 2007 Product data sheet
1. General description
The SA58671 is a stereo, lter-free class-D audio ampli er which is available in a 16 bump WLCSP (Wafer Level Chip-Size Package).
The SA58671 features independent shutdown controls for each channel. The gain can be set at 6 dB, 12 dB, 18 dB or 24 dB using G0 and G1 gain select pins. Improved immunity to noise and RF recti cation is increased by high PSRR and differential circuit topology. Fast start-up time and very small WLCSP package makes it an ideal choice for both cellular handsets and PDAs. The SA58671 delivers 1.3 W, channel at 5 V and 720 mW, channel at 3.6 V into 8 Ω. It delivers 1.2 W, channel at 5 V into 4 Ω. The maximum power ef ciency is excellent at 70 % to 74 % into 4 Ω and 84 % to 88 % into 8 Ω. The SA58671 provides thermal and short-circuit shutdown protection.
2. Features
I Output power: N 1.2 W, channel into 4 Ω at 5 V N 1.3 W, ch.