Description
The LM4921 combines a 16-bit resolution stereo I2S input digital-to-analog converter (DAC) with a stereo headphone audio power amplifier..
Features
- 1.
- 2 16-Bit Resolution Stereo DAC.
- I2S Digital Audio Data Serial Interface.
- SPI Serial Interface (Control Register).
- Volume Control (32 steps; 1.5 dB Increments).
- Up to 50mW/Channel Stereo Headphone
Amplifier.
- Zero Crossing Detection for Silent Attenuation
Steps.
- 2.6VDC to 5.0VDC Digital Supply Voltage Range.
- 2.6VDC to 5.5VDC Analog Supply Voltage Range
(See (1)).
- Unity-Gain Stable Headphone Amplifiers.
- Available in the 20-bump DSBGA Package
KEY SPECIFICATIONS.
- PSRR at 217Hz, A/DVDD = 3V, (See Figure 1): 52dB (typ).
- POUT at AVDD = 3.0V, 32Ω.
- < 0.05% THD: 13mW (typ).
- < 0.05% THD: 26mW (typ).
- Supply Voltage Range.
- DVDD: 2,6V to 5.0V.
- AVDD: (S.
