Описание
The MAX98091 is a fully integrated audio codec whose high-performance, ultra-low power consumption and small footprint make it ideal for portable applications. The device features a highly flexible input scheme with six input pins that can be configured as analog or digital microphone inputs, differential or single-ended line inputs, or as full-scale direct differential inputs. Analog inputs can be routed to the record path ADC or directly to any analog output mixer. The device accepts master clock frequencies of either 256 x fS or from 10MHz to 60MHz. The digital audio interface supports master or slave mode operation, sample rates from 8kHz to 96kHz, and standard PCM formats such as I²S, left/right-justified, and TDM. The record/playback paths feature FlexSound technology DSP. This includes digital gain and filtering, a biquad filter (record), dynamic range control (playback), and a seven band parametric equalizer (playback) that can improve loudspeaker performance by optimizing the frequency response. The stereo Class D speaker amplifier provides efficient amplification, features low radiated emissions, supports filterless operation, and can drive both 4O and 😯 loads. The DirectDrive stereo Class H headphone amplifier provides a ground-referenced output eliminating the need for large DC-blocking capacitors. The device also includes a differential receiver (earpiece) amplifier that can be reconfigured as a stereo single-ended line output.
- 102dB DR Stereo DAC to HP
- 4.1mW Stereo Playback Power Consumption
- 99dB DR Stereo ADC
- 4.5mW Stereo Record Power Consumption
- 3 Stereo Single-Ended/Differential Analog Microphone/Line Inputs
- Two PDM Digital Microphone Inputs
- Master Clock Frequencies from 256 x fS to 60MHz
- I2S/LJ/RJ/TDM Digital Audio Interface
- FlexSound Technology Signal Processing
- Record Path Biquad Filter
- Playback Path 7-Band Parametric EQ
- Playback Path Automatic Level Control
- Digital Filtering and Gain/Level Control
- 3.2W/Channel (RL = 4O, VSPKVDD = 5V)
- 1.8W/Channel (RL = 8O, VSPKVDD = 5V)
