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AK4955

Part Number	AK4955
Manufacturer	AKM
Description	24bit Stereo CODEC
Published	Feb 27, 2017
Detailed Description	[AK4955] AK4955 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP GENERAL DESCRIPTION The AK4955 is a 24bit ...
Datasheet	AK4955 PDF File

Overview

[AK4955] 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 composite 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 (+24dB/+21dB/+18dB/+16dB/+14dB/+11dB/+8dB/+5dB/0dB) • Digital ALC (Automatic Level Control) (Setting Range: +36dB ∼ −54dB, 0.
375dB Step) • ADC Performance: S/(N+D): 81dB, DR, S/N: 88dB (MIC-Amp=+18dB) S/(N+D): 82dB, DR, S/N: 9...

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