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Home > Mixed Signal IC's > Audio Converter > CODEC > AK4631 
AK4631
16-bit mono CODEC with headphone amp and speaker driver
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- 16-Bit Delta-Sigma Mono CODEC
- Recording Function
· 1ch Mono Input
· 1st MIC Amplifier: 0dB, 20dB, 26dB or 32dB
· 2nd Amplifier with ALC: -8dB ~ +27.5dB, 0.5dB Step
· ADC Performance: S/(N+D): 80dB, DR, S/N: 85dB
- Playback Function
· Digital Volume: +12dB ~ -115dB, 0.5dB Step, Mute
· Mono Line Output Performance: S/(N+D): 85dB, S/N: 93dB
· Mono Speaker-Amp
- BTL Output
- ALC (Automatic Level Control) Circuit
- Output Power: 250mW @ 8Ω, SVDD=3.3V 3.0Vrms@SVDD=5V
· Beep Input
- Power Management
- Flexible PLL Mode:
· Frequencies:
11.2896MHz, 12MHz, 12.288MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)
1fs (FCK pin)
16fs, 32fs or 64fs (BICK pin)
- EXT Mode:
· Frequencies: 256fs, 512fs or 1024fs (MCKI pin)
- Sampling Rate:
· PLL Slave Mode (FCK pin) : 7.35kHz ~ 26kHz
· 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)
- Output Master Clock Frequency: 256fs
- Serial ZÎZ¼P Interface: 3-wire
- Master / Slave Mode
- Audio Interface Format: MSB First, 2's compliment
· ADC: DSP Mode, 16bit MSB justified, I2S
· DAC: DSP Mode, 16bit MSB justified, 16bit LSB justified, I2S
- Ta = -10 ~ 70ZÂZ°C
- Power Supply
· CODEC: 2.6 ~ 3.6V (typ. 3.3V)
· Speaker-Amp: 2.6 ~ 5.25V (typ. 3.3V/5.0V)
- Low Power Consumption
- Package: 28pin QFN, 41pin BGA
- Pin and Register Compatible with AK4536/AK4630
- Evaluation Board: AKD4631
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AK4631 BLOCK DIAGRAM
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