AK4352

ASAHI KASEI [AK4352] AK4352 2V & Low Power Multi-Bit ∆Σ DAC 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 DIF0 DIF1 LRCK BICK SDATA VDD VSS PD Serial Input Interface 8X Interpolator ∆Σ Modulator De-emphasis Control 8X Interpolator ∆Σ Modulator Clock Divider LPF LPF VCML AOUTL AOUTR VCMR DEM MCLK CKS VREF M0040-E-02 -1- 2000/11 ASAHI KASEI [AK4352] n Ordering Guide AK4352VT AKD4352 n Pin Layout MCLK PD BICK SDATA LRCK DIF0 DIF1 DEM -40 ∼ +85°C Evaluation Board 16pin TSSOP (0.65mm...