AK4531A

ASAHI KASEI w w w The AK4531A is a two channel 16bit AUDIO Hi-Fi CODEC (ADC and DAC) with a sampling rate of 4kHz to 50kHz and includes a 2 channel 18bit DAC designed to work together with an extra sound source. Each converter can also operate by independent sampling rates. Its internal recording and playback mixer has 5 channel stereo and 3 channel mono with L/R, R/L, L/L and R/R switching. The AK4531A also has an internal 30dB microphone amplifier. Its master clock is 256 times of fs and an internal PLL can also automatically generates 256fs for master clock from fs. The sampling ADC has an enhanced dual bit delta sigma modulator. Both the 16bit and 18bit DAC have low outband noise and high jitter tolerance due to a switched capacitor filter(SCF) and a continuous time filter(CTF). The AK4531A corresponds to a 3.3V digital interface, performing with a low power dissipation of 315mW. The package is a low profile 44pin LQFP. .D a t a e h S 4 t e U .c om [AK4531A] AK4531A Audio CODEC with 13ch Mixer & 18bit DAC General Description Features w w 2ch Audio CODEC with low outband noise DAC 2ch 18bit Extra Audio DAC Standard Serial Interface for CODEC & DAC CODEC & DAC Dynamic Range: 87dB High Jitter Tolerance 5ch stereo & 3ch mono recording mixer with L/R, R/L, L/L and R/R switching 5ch stereo & 3ch mono playback mixer Input PGA with 32levels & 2dB step 30dB microphone amplifier 3-wire Serial Interface for Mixer Control Sampling Rate: 4kHz 50kHz Independent Sampli...