AKM’s AK4331ECB is a 2-channel, 32-bit, advanced, high sound quality, stereo digital-to-analog converter (DAC) including a built-in ground-referenced headphone amplifier. The DAC offers four types of 32-bit digital filters for better sound quality, attaining low distortion characteristics with a wide dynamic range. The IC also has a jitter cleaner with a built-in SRC and a crystal. The AK4331ECB is available in a 36-pin CSP package.
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- Sound color
- Four types, 32-bit 8-fold digital filters
- Short delay sharp roll-off, GD=5.5/fs
- Short delay slow roll-off, GD=4.5/fs
- Sharp roll-off
- Slow roll-off
- Jitter cleaner available (with asynchronous sample rate converter/crystal oscillator/low jitter PLL)
- THD+N: -100 dB
- SNR: 109 dB
- Number of channels: 2
- Operating temperature: -40°C to +85°C
- Microcomputer interface: I2C (400 kHz)
- Power supply
- AVDD = CVDD = LVDD = 1.7 V to 1.9 V
- TVDD = 1.65 V to 3.6 V
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- Headphone amplifier
- Ground referenced class-G stereo headphone amplifier
- Output power: 70 mW @ 8 Ω
- Output noise level: -114 dBV (analog volume = -10 dB)
- Analog volume: +4 to -10 dB, 2 dB step
- Ground loop noise canceling
- Resolution: 32-bit
- VELVET SOUND technology
- Low-distortion technology
- OSRD (oversampling ratio doubler) technology
- Power consumption: 4.4 mW (fs=48 kHz)
- Sampling rate
- 8 kHz to 192 kHz
- Master/slave mode
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| Applications |
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- USB headphones
- Bluetooth headphones
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