General Description

The AK4520 is a stereo CMOS A/D & D/A converter for middle-range MD/DAT, Surround System and musical instruments. Signal inputs and outputs are single-ended. The DAC outputs are analog filtered to remove out of band noise. External components are minimized.

Features

□ ∆Σ Stereo ADC

- 64x Oversampling

- S/(N+D): 90dB at 5V, 86dB at 3V

- Dynamic Range: 100dB at 5V, 96dB at 3V

- S/N: 100dB at 5V, 96dB at 3V

- Digital HPF for offset cancel

□ ∆Σ Stereo DAC

- 128x Oversampling

- 2nd order SCF + 2nd order CTF

- Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling

- S/(N+D): 90dB at 5V, 90dB at 3V

- Dynamic Range: 100dB at 5V, 96dB at 3V

- S/N: 100dB at 5V, 96dB at 3V

□ High Jitter Tolerance

□ Sample Rate Ranging from 16kHz to 54kHz

□ Master Clock: 256fs or 384fs

□ 2.7 to 3.6V or 4.5 to 5.5V supply

□ Low Power Dissipation: 255mW

□ Small 28pin VSOP Package