SA58672

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 Ohm. It delivers 3.0 W at 5 V and 1.6 W at 3.6 V into 4 Ohm. The maximum power efficiency is excellent at 90 pct into 8 Ohm and 84 pct to 88 pct into 4 Ohm. The SA58672 provides thermal and short-circuit shutdown protection.

Features

• Output power
  • 3.0 W into 4 Ohm at 5 V
  • 1.6 W into 4 Ohm at 3.6 V
  • 1.7 W into 8 Ohm at 5 V
  • 800 mW into 8 Ohm 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

Products/packages

Quality/reliability/chemical content

Quality and reliability disclaimer

Pricing/ordering/availability

Applications

• Wireless and cellular handsets and PDAs
• Portable DVD player
• USB speakers
• Notebook PC
• Portable radio and gaming
• Educational toys

Design support

Support Documents

75016197; NXP 3.0-W mono, filter-free, Class-D audio power amplifi er SA58672UK (2008-08-01)

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Disclaimers

• General product disclaimer
• Quality and reliability disclaimer