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AK4958

AKM
Part Number AK4958
Manufacturer AKM
Description 24bit Stereo CODEC
Published May 11, 2014
Detailed Description [AK4958] AK4958 24bit Stereo CODEC with MIC/SPK/VIDEO-AMP & LDO GENERAL DESCRIPTION The AK4958 is a 24-bit stereo CODEC...
Datasheet PDF File AK4958 PDF File

AK4958
AK4958

Overview
[AK4958] AK4958 24bit Stereo CODEC with MIC/SPK/VIDEO-AMP & LDO GENERAL DESCRIPTION The AK4958 is a 24-bit stereo CODEC with a microphone, speaker, video amplifiers and LDO.
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 AK4958 is available in a small 32-pin BGA (3.
5mm x 3.
5mm, 0.
5mm pitch: AK4958EG) and a 25-pin CSP (2.
2mm x 2.
2mm, 0.
4mm pitch: AK4958ECB) packages saving mounting area on the board.
FEATURES 1.
Recording Functions  Analog Input (AK4958EG) Stereo Single-ended input with two Selectors (AK4958ECB) Stereo Single-ended input  Microphone Amplifier (+30dB, +25dB, +21dB, +18dB, +15dB, +12dB, +6dB, 0dB)  Digital ALC (Automatic Level Control) - Setting Range: +36dB  52.
5dB, 0.
375dB Step & Mute - Motor Noise Reduction Circuit  ADC Performance: S/(N+D): 83dB, DR, S/N: 88dB (MIC-Amp=+18dB) S/(N+D): 85dB, DR, S/N: 96dB (MIC-Amp=0dB)  Microphone Sensitivity Compensation (with Moving Average Data Output Circuit)  Automatic Wind Noise Reduction Filter  5-Band Notch Filter Include Dynamic Gain Control  Stereo Separation Emphasis Circuit  Digital Microphone Interface 2.
Playback Functions  Soft Mute  Digital ALC (Automatic Level Control) - Setting Range: +36dB ~ 52.
5dB, 0.
375dB Step & Mute  Digital Volume Control - +6dB ~ 89.
5dB, 0.
5dB Step & Mute)  Stereo Separation Emphasis Circuit  Stereo Line Output - Output Voltage: 1Vrms (AVDD= 3.
3V) - S/(N+D): 85dB - S/N: 92dB  Mono Mixing Output  Mono Speaker-Amplifier - S/(N+D): 65dB@150mW, 60dB@250mW, - S/N: 90dB - BTL Output - Output Power: 400mW@8 (AVDD=3.
3V)  Analog Mixing: BEEP Input  Bass Boost Circuit  3-band Dynamic Range Control Circuit MS1558-E-01-PB -1- 2013/10 http://www.
Datasheet4U.
com [AK4958] 3.
Master Clock: Reference Clock Input Frequency (1) MCKI Reference PLL Mode Frequencies: 11.
2...


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