AK4551 Overview
The AK4551 is a low voltage 20bit A/D & D/A converter for portable digital audio system. In the AK4551, 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 AK4551 are single-ended, therefore, any external filters are not required.
AK4551 Key Features
- S/(N+D): 82dB@VDD=2.5V
- Dynamic Range, S/N: 89dB@VDD=2.5V o 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 o Audio I/F format: MSB First, 2’s pliment (AK4519 patible)
- ADC: 20bit MSB justified
- 20 ∼ +85°C
- Ground Pin
- Power Supply Pin I De-emphasis Control Pin I De-emphasis Control Pin O Audio Serial Data Output Pin I Audio Serial Data