The SN4990 has been designed for demanding audio applications such as mobile phones and permits the reduction of the number of external components.

It is capable of delivering 1.2 W of continuous RMS output power into an 8Ω load @ 5 V.

An externally-controlled standby mode reduces the supply current to less than 10nA. It also includes internal thermal shutdown protection.

The unity-gain stable amplifier can be configured by external gain setting resistors.

 

• Operating from VCC = 2.2 V to 5.5 V
• 1.2 W output power @ VCC = 5 V, THD = 1%,
  F = 1 kHz, with 8Ω load
• Ultra-low consumption in standby mode (10 nA)
• 62 dB PSRR @ 217 Hz in grounded mode
• Near-zero pop & click
• Ultra-low distortion (0.1%)
• Unity gain stable
• Available in a 9-bump Flip-Chip

• Mobile Phones
• PDAs
• Portable Electronic Devices
• Notebook Computer