AK4426 - Asahi Kasei Microsystems

AK4426 192kHz 24-Bit Stereo DAC

The AK4426 is a 5V 24-bit stereo DAC with an integrated 2Vrms output buffer. A charge pump in the buffer develops an internal negative power supply rail that enables a ground-referenced 2Vrms output. Using AKM’s multi bit modulator architecture, the AK4426 delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4426 int.

Features

† Sampling Rate Ranging from 8kHz to 192kHz † 128 times Oversampling (Normal Speed Mode) † 64 times Oversampling (Double Speed Mode) † 32 times Oversampling (Quad Speed Mode) † 24-Bit 8 times FIR Digital Filter † Switched-Capacitor Filter with High Tolerance to Clock Jitter † Single Ended 2Vrms Output Buffer † Digital De-emphasis Filter: 32kHz, 44.1kHz or 48kHz † Soft mute † Digital Attenuator (Linear 256 Step) † Control I/F: I2C-Bus † Audio I/F format: 24Bit MSB justified, 24/20/16 LSB justified or I2S compatible † Master clock: 256fs, 384fs, 512fs, 768fs or 1152fs (Normal Speed Mode) 128fs, .