| The AK5702 features a 4-channel ADC. Input circuits include a Microphone-Amplifier with programmable gain and an ALC (Auto Level Control) circuit, making it ideal for consumer microphone array applications. On-chip PLL and TDM audio format makes it easy to connect with DSP. The AK5702 has a software compatibility with stereo version, AK5701. |
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- Applications: Game Machine, PC, Phone / Video Conference System
- Recording Function
· 4-Channel ADC
· 3:1 Stereo Input Selector
· Full-differential or Single-ended Input
· MIC Amplifier (+36dB/+30dB/+15dB/0dB)
· Input Voltage: 1.8Vpp@AVDD=3.0V (= 0.6 x AVDD)
· ADC Performance:
 S/(N+D): 83dB, DR, S/N: 89dB@MGAIN=0dB
S/(N+D): 83dB, DR, S/N: 87dB@MGAIN=+15dB
· Digital HPF for DC-offset cancellation (fc=3.4Hz@fs=44.1kHz)
· Digital ALC
· Input Digital Volume (+36dB ~ -54dB, 0.375dB Step, Mute)
- Sampling Rate:
· PLL Slave Mode (LRCK pin): 7.35kHz ~ 48kHz
· PLL Slave Mode (BCLK 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)
- PLL Input Clock:
· MCKI pin:
27MHz, 26MHz, 24MHz, 19.2MHz, 13.5MHz, 13MHz, 12.288MHz,
12MHz, 11.2896MHz
· LRCK pin: 1fs
· BCLK pin: 32fs/64fs
- Master/Slave mode
- Audio Interface Format: MSB First, 2's complement
· DSP Mode, 16bit MSB justified, I2S
· Cascade TDM interface
- µP I/F: 3-wire Serial or I2C Bus (Ver 1.0, 400kHz Mode)
- Power Supply:
· AVDD: 2.4 ~ 3.6V
· DVDD: 1.6 ~ 3.6V (Stereo Mode)
· DVDD: 2.0 ~ 3.6V (TDM128 Mode, 16bit x 8ch)
· DVDD: 2.7 ~ 3.6V (TDM256 Mode, 32bit x 8ch)
- Power Supply Current: 13 mA (EXT Slave Mode)
- Ta = -30 ~ 85°C
- Package: 32pin QFN (5mm x 5mm)
- Register Compatible with AK5701
- Evaluation Board: AKD5702
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