AK4556 Description
The AK4556 is a low voltage 24bit 192kHz CODEC for high performance battery powered digital audio subsystems. The dynamic performance to power supply voltage ratio is very high, attaining 103dB and 106dB SNR for ADC and DAC, respectively. Sampling rates up to 216kHz are supported.
AK4556 Key Features
- Dynamic Range, S/N: 103dB@VA=3.0V
- S/(N+D): 91dB@VA=3.0V
- HPF for DC-offset cancel (fc = 1Hz @ fs=48kHz)
- HPF can be disabled Single-ended DAC
- Dynamic Range, S/N: 106dB@VA=3.0V
- S/(N+D): 90dB@VA=3.0V
- Digital de-emphasis for 32kHz, 44.1kHz and 48kHz sampling Audio I/F format: MSB First, 2’s plement
- ADC: 24bit MSB justified or I2S patible
- DAC: 24bit MSB justified, 24bit LSB justified or I2S patible Input/Output Voltage: ADC = 2.1Vpp @ VA=3.0V DAC = 2.1Vpp
- Double Speed: 54kHz to 108kHz (256fs) 48kHz to 96kHz (384fs)