The MAX98089ETN+ is a low power, stereo audio codec with FlexSound technology in 56 pin TQFN package. This full featured audio codec has high performance and low power consumption. A class D speaker amplifier provides efficient amplification for two speakers. The IC has a stereo class H headphone amplifier that utilizes dual mode charge pump to maximize efficiency while outputting a ground referenced signal that does not require output coupling capacitors. It also has mono differential amplifier that can also be configured as a stereo line output. Two flexible single ended or differential line inputs can be connected to an FM radio or other sources. Integrated FlexSound technology improves loudspeaker performance by optimizing the signal level and frequency response while limiting maximum distortion and power at output to prevent speaker damage. Automatic gain control (AGC) and noise gate optimize the signal level of microphone input signals to make best use of the ADC dynamic range.
Supply voltage range from 1.65V to 3.6V (VDVDDS1, VDVDDS2)
Operating temperature range from -40°C to 85°C
Dual I2S/PCM/TDM digital audio interfaces
High integration frees up board space and supports master clock frequencies from 10MHz to 60MHz
5.6mW power consumption (DAC to HP at 97dB DR)
101dB DR stereo DAC (8KHz < fS < 96KHz) and 93dB DR stereo ADC (8KHz < fS < 96KHz)
Stereo low EMI class D amplifiers, 1.7W/channel (8ohm), 2.9W/channel (4ohm, VSPK_VDD = 5V)
Differential receiver amplifier/stereo line outputs and asynchronous digital mixing
Extensive click and pop reduction circuitry
Total supply current of 4.5mA (analogue full duplex 8KHz mono, receiver output, MAS = 1)
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