GENERAL DESCRIPTION

The AK4346 is an 6-channel 24bit DAC operating off of a single +3.3V power supply. The outputs are single-ended, and it samples at rates from 8kHz to 192kHz. It uses AKM’s advanced multi-bit architecture for the modulator to achieve a wide dynamic range while preserving linearity for improved THD+N performance. The output circuit includes a switched-cap filter and a second- order analog low pass filter, minimizing the need for external filtering.

FEATURES

□ Sampling Rate: 8kHz to 192kHz
□ 24-Bit 8 times Digital Filter with Slow Roll-Off Option
□ DR, S/N: 104dB
□ THD+N: -90dB
□ High Tolerance to Clock Jitter
□ Single Ended Output Buffer with Second Order Analog LPF
□ Digital De-emphasis for 32, 44.1 & 48kHz sampling
□ Zero Detect Function
□ Channel Independent Digital Attenuator (Linear 256 steps)
□ 3-wire Serial or I2C Control
□ I/F format: MSB justified, LSB justified (16-, 20-, 24-bit), I2S, TDM
□ Master clock: 256fs, 384fs, 512fs or 768fs or 1152fs (Normal Speed Mode)
128fs, 192fs, 256fs or 384fs (Double Speed Mode)
128fs or 192fs (Quad Speed Mode)
□ Power Supply: 2.7V to 3.6V
□ Ta = −20 ∼ 85°C (EF), −40 ∼ 85°C (VF)
□ Package: 30-pin VSOP