GENERAL DESCRIPTION
The AK5356 is a low voltage 20bit A/D converter for digital audio system. The AK5356 also includes microphone amplifier and analog input PGA, making it suitable for microphone applications or low-input signal levels. As digital power supply of the AK5356 corresponds to 1.8V, the interface with microprocessor can operate at low voltage. The AK5356 is housed in a space-saving 28-pin QFN package.

FEATURES
1. MIC Block
   · MIC Power
   · Pre-Amplifier (+13dB / +18dB / +28dB / +33dB)
2. 20bit 2ch ADC
   · 2-Input Stereo Selector
   · Analog Input PGA: +28dB ~ - 52dB, Mute
   · S/(N+D): 84dB
   · DR, S/N: 89dB
   · Monaural Mixing
   · Digital HPF for DC-offset cancellation (fc=3.4Hz@fs=44.1kHz)
3. 3-wire Serial Control I/F
4. Master Clock: 256fs/384fs
5. Audio Data Format: MSB First, 2’s compliment
   · 16/20bit MSB justified or 16/20bit I2S compatible
6. Power Supply Voltage
   · AVDD: 2.0 ~ 3.3V
   · MVDD: 2.4 ~ 3.3V
   · DVDD: 1.8 ~ 3.3V
7. Power Supply Current
   · MIC Block: 3.4mA
   · IPGA+ADC: 6mA
8. Ta = - 40 ~ 85°C
9. Package: 28pin QFN