AK4525

ASAHI KASEI [AK4525] AK4525 20Bit Stereo ∆Σ ADC & DAC with X’ tal Osc GENERAL DESCRIPTION The AK4525 has a dynamic range of 100dB and is well-suited middle-range MD, surround system, musical instruments and car audio. Analog inputs are full-differential with single-end capability. Analog outputs are single-ended. The AK4525 has X’ tal oscillation circuit and master mode. FEATURES o ∆Σ Stereo ADC - 64x Oversampling - Sample Rate Ranging from 32kHz to 48kHz - S/(N+D): 92dB - Dynamic range, S/N: 100dB - Digital HPF for offset cancellation o ∆Σ Stereo DAC - 128x Oversampling - Sampling Rate Ranging from 32kHz to 48kHz - 2nd order SCF + 2nd order CTF - Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling - S/(N+D): 90dB - Dynamic Range, S/N: 100dB - Soft Mute o High Jitter Tolerance o Master Clock: 256fs, 384fs, 512fs o X’ tal Oscillation circuit o Master/Slave Mode o Analog Power Supply: 4.5 to 5.5V, Digital Power Supply: 3.1 to 5.5V VA AGND VD DGND CMODE AINL+ AINLAINR+ AINRVREFH VCOM AOUTL AOUTR ∆Σ Modulator Decimation Filter HPF ∆Σ Modulator Decimation Filter HPF Clock Gen & Divider Common Voltage Serial I/O Interface LPF ∆Σ Modulator 8x Interpolator LPF ∆Σ Modulator 8x Interpolator MCKO XTI XTO LRCK SCLK SDTO SDTI DIF0 DIF1 SMUTE M/S PDN DEM0 DEM1 MS0053-E-00 -1- 2000/9 ASAHI KASEI n Ordering Guide AK4525VF AKD4525 n Pin Layout VREFH AINR+ AINRAINL+ AINLVA AGND XTI XTO DIF0 DIF1 LRCK SCLK SDTI -40 ∼ +85°C 28pin VSOP (0.65mm pitch) Evaluation ...