AK4555 Datasheet - Asahi Kasei Microsystems

AK4555 Low Power & Small Package 20-bit CODEC

The AK4555 is a low voltage 20bit A/D & D/A converter for portable digital audio system. In the AK4555, the loss of accuracy form clock jitter is also improved by using SCF techniques for on-chip post filter. Analog signal input/output of the AK4555 are single-ended, therefore, any external filters .

AK4555 Features

* HPF for DC-offset cancel (fc=3.4Hz) Single-ended ADC - S/(N+D): 80dB@VDD=2.5V - Dynamic Range, S/N: 89dB@VDD=2.5V Single-ended DAC - Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling - S/(N+D): 85dB@VDD=2.5V - Dynamic Range, S/N: 92dB@VDD=2.5V Audio I/F format: MSB First, 2’s Compliment

AK4555_AsahiKaseiMicrosystems.pdf