SA58672 Datasheet, PDF (1/27 Pages) NXP Semiconductors – 3.0 W mono class-D audio amplifier

SA58672
3.0 W mono class-D audio amplifier
Rev. 04 — 8 June 2009
Product data sheet
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 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 % into 8 Ω
and 84 % to 88 % into 4 Ω. The SA58672 provides thermal and short-circuit shutdown
protection.
2. Features
I Output power
N 3.0 W into 4 Ω at 5 V
N 1.6 W into 4 Ω at 3.6 V
N 1.7 W into 8 Ω at 5 V
N 800 mW into 8 Ω at 3.6 V
I Power supply range: 2.0 V to 5.5 V
I Shutdown control
I High SVRR: −77 dB at 217 Hz
I Fast start-up time: 7.0 ms
I Low supply current
I Low shutdown current
I Short-circuit and thermal protection
I Space savings with 1.66 mm × 1.71 mm × 0.6 mm 9 bump WLCSP package
I Low junction to ambient thermal resistance of 100 K/W with adequate heat sinking of
WLCSP
I Enhanced power dissipation with 3.0 mm × 3.0 mm × 0.85 mm HVSON10 package