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AK4640
16位 编码译码器配有单声道 ADC、立体声DAC、耳机放大器、PLL、输出线
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- Resolution: 16bits
- Recording Function
- Mono Input
- 2 to 1 Selector (Internal and External MIC)
- 1st MIC Amplifier: +20dB or 0dB
- 2nd Amplifier with ALC: +27.5dB ~ -8dB, 0.5dB Step
- ADC Performance: S/(N+D): 79dB, DR, S/N: 83dB
- Playback Function
- Digital De-emphasis Filter (tc=50/15ms, fs=32kHz, 44.1kHz, 48kHz)
- Digital Volume (0dB ~ -127dB, 0.5dB Step, Mute)
- Headphone-Amp
- S/(N+D): 70dB, S/N: 90dB
- Output Power: 15mW@16W (HVDD=3.3V)
- Click Noise Free at Power ON/OFF
- Mono Speaker-Amp with ALC
- S/(N+D): 64dB@150mW, S/N : 90dB
- BTL Output
- ALC circuit
- Output Power: 400mW@8Ω, THD+N=10% (HVDD=3.3V)
- Mono and Stereo Beep Inputs
- Phone I/F
- Full-differential AUX Input
- Full-differential Mono Output
- Power Management
- Master Clock
(1) PLL Mode
- Frequencies: 11.2896MHz, 12MHz and 12.288MHz
- Input Level: CMOS
(2) External Clock Mode
- Frequencies: 1.792MHz ~ 12.288MHz
- Output Master Clock Frequencies: 32fs/64fs/128fs/256fs
- Sampling Rate
(1) PLL Mode
- 8kHz, 11.025kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
(2) External Clock Mode
- 8kHz ~ 48kHz
- Control mode: 4-wire Serial / I²C Bus
- Master/Slave mode
- Audio Interface Format: MSB First, 2's compliment ADC: I²S, 16bit MSB justified
- DAC: I²S, 16bit MSB justified, 16bit LSB justified
- Ta = - 10 ~ 70°C
- Power Supply: 2.4V ~ 3.6V (typ. 3.3V)
- Low Power Consumption
- Package: 57pin BGA (5mm × 5mm, 0.5mm pitch)
52pin QFN (Pin Compatible with AK4534/8VN)
- Register Compatible with AK4534/8
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AK4640 BLOCK DIAGRAM
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