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Home > Mixed Signal IC's > Audio Converter > CODEC > AK4646EZ
AK4646EZ
Low Power 2ch ADC & 2ch DAC with ALC/Eq and MIC/SPK-Amp
| The AK4646EZ 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 (4mm × 4mm 0.4mm pitch), utilizing less board space than competitive offerings. |
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- Applications: Digital still camera, Digital video camera
- Recording Function
· 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)
 (+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
· 5 Band Notch Filter
· Stereo Separation Emphasis
- Playback Function
· Digital De-emphasis Filter (tc=50/15μs, fs=32kHz, 44.1kHz, 48kHz)
· 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
· Mono Speaker-Amp
- S/(N+D): 60dB@150mW, S/N: 90dB
- BTL Output
- Available for both Dynamic and Piezo Speaker
- Output Power: 400mW@8Ω (SVDD=3.3V)
· Analog Mixing: Mono Input
- Power Management
- Master Clock:
(1) PLL Mode
· Frequencies:
12MHz, 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)
- Output Master Clock Frequencies: 32fs/64fs/128fs/256fs
- 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)
- μP I/F: 3-wire Serial
- Master/Slave mode
- Audio Interface Format: MSB First, 2's compliment
· ADC: 16bit MSB justified, I2S
· DAC: 16bit MSB justified, 16bit LSB justified, 16-24bit I2S
- Ta = -30 ~ 85°C
- Power Supply:
· AVDD: 2.2 ~ 3.6V (typ. 3.3V)
· DVDD: 1.6 ~ 3.6V (typ. 3.3V)
· SVDD: 2.2 ~ 4.0 V (typ. 3.3V)
- Package: 32pin QFN (4mm × 4mm, 0.4mm pitch)
- Pin/Register Compatible with AK4642EN/AK4643EN
- Evaluation Board: AKD4646
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AK4646EZ BLOCK DIAGRAM
Data Sheet PDF
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Data Sheets
Rev. MS0630-E-00 2007/06
PDF : 835KB / 78pages
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Evalution Board Manual
Rev. KM084101 2006/08
PDF : 572KB / 30pages |
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