ak4646 AKM Semiconductor, Inc., ak4646 Datasheet
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ak4646
Manufacturer Part Number
ak4646
Description
Stereo Codec With Mic/spk-amp
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK4646.pdf
(79 pages)
Available stocks
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The AK4646 features a stereo CODEC with a built-in Microphone-Amplifier and Speaker-Amplifier. Input
circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit, and Output circuits
include a Speaker-Amplifier. These circuits are suitable for portable application with recording/playback
function. The AK4646 is available in a 32pin QFN, utilizing less board space than competitive offerings.
MS0557-E-02
1. Recording Function
2. Playback Function
3. Power Management
4. Master Clock:
5. Output Master Clock Frequencies: 32fs/64fs/128fs/256fs
• Stereo Mic Input (Full-differential or Single-ended)
• Stereo Line Input
• MIC Amplifier (+32dB/+29dB/+26dB/+23dB/+20dB/+17dB/+10dB/0dB)
• Digital ALC (Automatic Level Control)
• ADC Performance: S/(N+D): 83dB, DR, S/N: 86dB (MIC-Amp=+20dB)
• Wind-noise Reduction Filter
• 5 Band Notch Filter
• Stereo Separation Emphasis
• Digital De-emphasis Filter (tc=50/15μs, fs=32kHz, 44.1kHz, 48kHz)
• Digital ALC (Automatic Level Control)
• Stereo Separation Emphasis
• Stereo Line Output
• Mono Speaker-Amp
• Analog Mixing: Mono Input
(1) PLL Mode
(2) External Clock Mode
• Frequencies:
• Frequencies: 256fs, 512fs or 1024fs (MCKI pin)
- Performance: S/(N+D): 88dB, S/N: 92dB
- S/(N+D): 60dB@150mW, S/N: 90dB
- BTL Output
- Available for both Dynamic and Piezo Speaker
- Output Power: 400mW@8Ω (SVDD=3.3V)
12MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)
1fs (LRCK pin)
32fs or 64fs (BICK pin)
(+36dB ∼ −54dB, 0.375dB Step, Mute)
(+36dB ∼ −54dB, 0.375dB Step, Mute)
S/(N+D): 88dB, DR, S/N: 95dB (MIC-Amp=0dB)
GENERAL DESCRIPTION
Stereo CODEC with MIC/SPK-AMP
FEATURES
- 1 -
AK4646
[AK4646]
2007/05