GENERAL DESCRIPTION

AK4560A is a 16bit stereo CODEC with a built-in Microphone-Amp, Headphone-Amp and Speaker-Amp. Input circuits include Microphone/LINE inputs selector, power supply for microphone, Pre-Amp, HPF-Amp, EQ-Amp and ALC (Auto Level Control) circuit, and output circuits include LINEOUT buffer, Analog Volume, Headphone-Amp and Speaker-Amp, therefore the AK4560A suits a portable application with a built-in LCD and etc. As Multi-Power-Supply-System can be set a suitable power supply voltage in each block, the AK4560A is compatible with high performance and low power dissipation. The package is a 64pin LQFP, therefore, a new system can be a smaller board area than a current system is composed of 2 or 3 chips.

FEATURE

1. Resolution: 16bits

2. Recording Function:

• 3-Input Selector (Internal MIC, External MIC, LINE)

• Pre-Amp/EQ-Amp

• HPF-Amp for wind-noise

• Digital ALC (Auto Level Control) circuit

• FADEIN / FADEOUT

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

3. Playback Function

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

• LINEOUT Buffer: +2dBV

• Analog Volume - 0dB ∼ -50dB, Mute

• Headphone-Amp

- Output Level: -3.4dBV, THD+N = 1

• Speaker-Amp with a built-in Digital ALC circuit

- BTL Output

- Output Power: 80mW @ 8Ω

• BEEP and Shutter Signal Inputs

4. Analog Through Mode

5. Power Management

6. ADC Characteristics (LIN → ALC1 → ADMIX → ADC)

• S/(N+D): 80dB, DR=S/N: 86dB

7. DAC Characteristics (DAC → LINEOUT)

• S/(N+D): 82dB, DR=S/N: 88dB

8. Master Clock: 256fs/384fs

9. Sampling Rate: 8kHz ∼ 50kHz

10. Audio Data Interface Format: MSB-First, 2’s compliment (AK4518/AK4550 Compatible)

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

11. Ta = -20 ∼ 85°C

12. Power Supply

• CODEC, Analog Volume: 2.6 ∼ 3.3V (typ. 2.8V)

• LINEOUT, Headphone-Amp: 3.8 ∼ 5.5V (typ. 4.5V)

• MIC-Amp: 2.6 ∼ 5.5V (typ. 3.9V)

• Speaker-Amp: 3.8 ∼ 4.3V (typ. 4.0V)

13. Power Supply Current

• All Circuits Power-up: 32.5mA

14. Package: 64pin LQFP, 0.5mm Pitch