GENERAL DESCRIPTION

The AK4563A is low power operation, 16bit CODEC that include 4ch ADC and 2ch DAC. The AK4563A also includes ALC (Automatic Level Control) circuit, therefore is suitable for microphone application and etc. As the ALC circuit can be stopped by controlling µP, IPGA can also be used as the manual volume. Digital I/F can be input/output from 1.5V to 3.0V by external power supply. The AK4563A can be powered-down by each block, therefore the AK4563A is suitable to low power dissipation in system.

FEATURES

1. Resolution : 16bits

2. Recording Functions

• 4ch Analog Input PGA (Programmable Gain Amplifier)

• Digital ALC (Automatic Level Control) circuit

• FADEIN / FADEOUT

• Digital HPF for DC-offset cancellation (fc=3.7Hz@fs=48kHz)

• Peak-Meter Output (2ch)

3. Playback Function

• Digital De-emphasis Filter (tc = 50/15µs, fs=32k, 44.1k and 48kHz)

4. Power Management

5. CODEC (ADC: 4ch, DAC: 2ch)

• Single-ended Inputs/Outputs

• Input / Output Level: 1.5Vpp@VREF=2.5V (= 0.6 x VREF)

• S/(N+D): 83dB(ADC), 86dB(DAC) @VREF=2.5V

• DR, S/N: 87dB(ADC), 91dB(DAC) @VREF=2.5V

6. Master Clock: 256fs/384fs

7. Sampling Rate: 8kHz ∼ 50kHz

8. Audio Data Interface Format: MSB-First, 2’s compliment (AK4516A Compatible)

• ADC: 16bit MSB justified, 16bit LSB justified, I2S

• DAC: 16bit MSB justified, 16bit LSB justified, I2S

9. Power Supply

• CODEC, PGA: 2.3 ∼ 3.0V (typ.2.5V)

• Digital I/F: 1.5 ∼ 3.0V(typ.2.5V)

10. Power Supply Current

• ALL Power ON: 18mA

• (ALC + ADC) x 4ch: 13.5mA

• DAC: 5.5mA

11. Ta = -20 ∼ 85 ºC

12. Package: 28pin VSOP