SA58672
1. General description
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 W. It delivers 3.0 W at 5 V
and 1.6 W at 3.6 V into 4 W. The maximum power efficiency is excellent at 90 % into 8 W
and 84 % to 88 % into 4 W. The SA58672 provides thermal and short-circuit shutdown
protection.
2. Features
n Output power
u 3.0 W into 4 W at 5 V
u 1.6 W into 4 W at 3.6 V
u 1.7 W into 8 W at 5 V
u 800 mW into 8 W at 3.6 V
n Power supply range: 2.0 V to 5.5 V
n Shutdown control
n High SVRR: -77 dB at 217 Hz
n Fast start-up time: 7.0 ms
n Low supply current
n Low shutdown current
n Short-circuit and thermal protection
n Space savings with 1.66 mm ´ 1.71 mm ´ 0.6 mm 9 bump WLCSP package
n Low junction to ambient thermal resistance of 100 K/W with adequate heat sinking of
WLCSP
n Enhanced power dissipation with 3.0 mm ´ 3.0 mm ´ 0.85 mm HVSON10 package
