MAX9888 is a high performance, low power consumption audio CODEC produced by Maxim. The device supports two-way stereo audio output and two-way speaker drive. It also integrates low-pass filter, headphone amplifier, digital microphone interface, FM radio interface and other functions. It is suitable for portable audio devices.
The MAX9888 is a full‑featured stereo audio CODEC designed for portable applications. It integrates Class D speaker amplifiers, DirectDrive® headphone amplifiers, a differential receiver, and FlexSound K technology that optimizes speaker performance while protecting against distortion and overload. The device supports multiple analog and digital audio inputs, including differential microphone inputs and PDM digital microphones, and provides extensive signal‑processing features such as automatic gain control, noise gating, and a 5‑band parametric EQ.
The datasheet details the electrical characteristics, absolute maximum ratings, and recommended PCB layout guidelines to achieve optimal audio performance. It also includes specifications for power consumption, supply voltage ranges, operating temperature limits, and digital interface timing for I2C, I2S/PCM/TDM, and other audio protocols.
| Stereo DAC Dynamic Range | 100 dB DR |
|---|---|
| Stereo ADC Dynamic Range | 91 dB DR |
| Class D Speaker Amplifier Power | 950 mW per channel |
| Operating Temperature Range | -40°C to +85°C |
| Supply Voltage Range | 1.65 V to 2.0 V |
| Package | 63‑bump WLP (3.80 mm × 3.30 mm, 0.4 mm pitch) |
The device operates with a supply voltage between 1.65 V and 2.0 V.
Each Class D speaker amplifier can deliver up to 950 mW per channel.
The MAX9888 is specified for operation from –40 °C to +85 °C.
The MAX9888 supports I2S/PCM/TDM digital audio interfaces.