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AK4647

AKM
Part Number AK4647
Manufacturer AKM
Description Stereo CODEC
Published May 11, 2014
Detailed Description ASAHI KASEI [AK4647] AK4647 Stereo CODEC with MIC/HP-AMP GENERAL DESCRIPTION The AK4647 features a s tereo CODEC with ...
Datasheet PDF File AK4647 PDF File

AK4647
AK4647

Overview
ASAHI KASEI [AK4647] AK4647 Stereo CODEC with MIC/HP-AMP GENERAL DESCRIPTION The AK4647 features a s tereo CODEC with a built-in Microphone-Amplifier and Headphone-Amplifier.
Built-in PLL circuit supports an easy interface with variable systems.
The AK4647 is available in a 48pin LQFP, utilizing less board space than competitive offerings.
FEATURES 1.
Recording Function • Stereo Mic Input (Full-differential or Single-ended) • Stereo Line Input • MIC Amplifier (+32dB/+26dB/+20dB or 0dB) • Digital ALC (Automatic Level Control) (+36dB ∼ −54dB, 0.
375dB Step, Mute) • ADC Performance: S/(N+D): 83dB, DR, S/N: 86dB (MIC-Amp=+20dB) S/(N+D): 88dB, DR, S/N: 95dB (MIC-Amp=0dB) • Wind-noise Reduction Filter • Stereo Separation Emphasis • Programmable EQ 2.
Playback Function • Digital De-emphasis Filter (tc=50/15μs, fs=32kHz, 44.
1kHz, 48kHz) • Bass Boost • Soft Mute • Digital Volume (+12dB ∼ −115.
0dB, 0.
5dB Step, Mute) • Digital ALC (Automatic Level Control) (+36dB ∼ −54dB, 0.
375dB Step, Mute) • Stereo Separation Emphasis • Stereo Line Output - Performance: S/(N+D): 88dB, S/N: 92dB • Stereo Headphone-Amp - S/(N+D): 70dB, S/N: 90dB - Output Power: 62mW@16Ω (HVDD=3.
3V) - Pop Noise Free at Power ON/OFF • Analog Mixing: Mono Input 3.
Power Management 4.
Master Clock: (1) PLL Mode • Frequencies: 11.
2896MHz, 12MHz, 12.
288MHz, 13.
5MHz, 24MHz, 27MHz (MCKI pin) 1fs (LRCK pin) 32fs or 64fs (BICK pin) (2) External Clock Mode • Frequencies: 256fs, 512fs or 1024fs (MCKI pin) 5.
Output Master Clock Frequencies: 32fs/64fs/128fs/256fs MS0566-E-00 - 2006/11 1http://www.
Datasheet4U.
com ASAHI KASEI [AK4647] 6.
Sampling Rate: • PLL Slave Mode (LRCK pin): 7.
35kHz ∼ 48kHz • PLL Slave Mode (BICK pin): 7.
35kHz ∼ 48kHz • PLL Slave Mode (MCKI pin): 8kHz, 11.
025kHz, 12kHz, 16kHz, 22.
05kHz, 24kHz, 32kHz, 44.
1kHz, 48kHz • PLL Master Mode: 8kHz, 11.
025kHz, 12kHz, 16kHz, 22.
05kHz, 24kHz, 32kHz, 44.
1kHz, 48kHz • EXT Slave Mode: 7.
35kHz ∼ 48kHz (256fs), 7.
35kHz ∼ 26kHz (512fs), 7.
35kHz ∼ 13kHz (1024fs) 7.
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