GENERAL DESCRIPTION

The AK4352 is an 18bit low voltage & power stereo DAC for digital audio system. The AK4352 uses the new developed Multi-Bit ?Σ architecture, this new architecture achieves DR=94dB at low voltage operation. The AK4352 includes post filter with single-ended output and does not need any external parts. The AK4352 is suitable for the portable audio system like MD, etc as low power and small package.

FEATURES

? Multi-Bit ?Σ DAC

? Sampling Rate Ranging: 8kHz ～ 50kHz

? On chip post filter

? On chip Buffer with Single-ended Output

? On chip Perfect filtering 8 times FIR interpolator

Passband: 20kHz

Passband Ripple: ± 0.06dB

Stopband Attenuation: 43dB

? Digital Audio I/F format: 2’s compliment, MSB first

18bit MSB justified, 16/18bit LSB justified, I2S

? Digital de-emphasis for 44.1kHz sampling

? Master clock: 256fs or 384fs

? THD+N: -83dB@2V, -89dB@3V

? D-Range: 94dB@2V, 96dB@3V

? Output Voltage: 1.10Vpp@2V

? Low Voltage Operation: 2V (1.8 ～ 3.6V)

? Low power Dissipation: 6mW@2V

? Very Small Package: 16pin TSSOP