AK4352 - Asahi Kasei Microsystems

AK4352 2V & Low Power Multi-Bit DAC

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 M.

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: .