AK4955 Datasheet | Asahi Kasei Microdevices

[AK4955] 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP GENERAL DESCRIPTION The AK4955 is a 24bit stereo CODEC with a microphone amplifier, speaker amplifier, video amplifier, LDO, and DSP. The input circuits include a microphone amplifier and the output circuits include a speaker amplifier. It is suitable for portable application with recording/playback function. A one channel posite In/Out video amplifier is also integrated. The internal charge pump generates a negative power eliminating the need for AC-coupling capacitors. The AK4955 is available in a small 36pin CSP (3.0mm x 3.1mm, 0.5mm pitch), saving mounting area on the board. Features 1. Recording Functions - Stereo Single-ended input with two Selectors - MIC Amplifier (+24d B/+21d B/+18d B/+16d B/+14d B/+11d B/+8d B/+5d B/0d B) - Digital ALC (Automatic Level Control) (Setting Range: +36d B ∼ - 54d B, 0.375d B Step) - ADC Performance: S/(N+D): 81d B, DR, S/N: 88d B (MIC-Amp=+18d B) S/(N+D): 82d B, DR, S/N:...