3V 104dB 192kHz 24-Bit 8ch DAC
The AK4348 is an 8-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.
• 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 to 85°C (EF), -40 to 85°C (VF)
• Package: 30-pin VSOP
• AK4359 Pin Compatible