SA58672UK

：3.0 W单声道D类音频放大器器 3.0 W mono class-D audio amplifier

Overview

The SA58672 is a mono, filter-free class-D audio amplifier which is available in a 9 bump WLCSP Wafer Level Chip-Size Package and 10-terminal HVSON packages.

The SA58672 features shutdown control. Improved immunity to noise and RF rectification 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 SA58672 delivers 1.7 W at 5 V and 800 mW at 3.6 V into 8 Ω. It delivers 3.0 W at 5 V and 1.6 W at 3.6 V into 4 Ω. The maximum power efficiency is excellent at 90 pct into 8 Ω and 84 pct to 88 pct into 4 Ω. The SA58672 provides thermal and short-circuit shutdown protection.

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## Features

* Output power

* 3.0 W into 4 Ω at 5 V

* 1.6 W into 4 Ω at 3.6 V

* 1.7 W into 8 Ω at 5 V

* 800 mW into 8 Ω at 3.6 V

* Power supply range: 2.0 V to 5.5 V

* Shutdown control

* High SVRR: -77 dB at 217 Hz

* Fast start-up time: 7.0 ms

* Low supply current

* Low shutdown current

* Short-circuit and thermal protection

* Space savings with 1.66 mm x 1.71 mm x 0.6 mm 9 bump WLCSP package

* Low junction to ambient thermal resistance of 100 K/W with adequate heat sinking of WLCSP

* Enhanced power dissipation with 3.0 mm x 3.0 mm x 0.85 mm HVSON10 package

## Target Applications

* Wireless and cellular handsets and PDAs

* Portable DVD player

* USB speakers

* Notebook PC

* Portable radio and gaming

* Educational toys

## Features