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MAX98091 Dataheets PDF



Part Number MAX98091
Manufacturers Maxim Integrated
Logo Maxim Integrated
Description Ultra-Low Power Stereo Audio Codec
Datasheet MAX98091 DatasheetMAX98091 Datasheet (PDF)

EVALUATION KIT AVAILABLE MAX98091 Ultra-Low Power Stereo Audio Codec General Description 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.

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EVALUATION KIT AVAILABLE MAX98091 Ultra-Low Power Stereo Audio Codec General Description 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 4Ω and 8Ω 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. Simplified Block Diagram BATTERY 1.8V 1.2V Features and Benefits ● 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 ● Stereo Low EMI Class D Speaker Amplifiers • 3.2W/Channel (RL = 4Ω, VSPKVDD = 5V) • 1.8W/Channel (RL = 8Ω, VSPKVDD = 5V) ● Stereo DirectDrive Class H Headphone Amplifier Jack Detection and Identification ● Differential Receiver Amplifier/Stereo Line Output ● Extensive Click-and-Pop Reduction Circuitry ● RF Immune Analog Inputs and Outputs ● Programmable Microphone Bias ● I2C Control Interface ● 56-Bump 0.4mm WLP and 48-Pin 6mmx6mmx0.75mm TQFN Packages I2S/ TDM I2C OR DIGITAL MICROPHONE OR ANALOG MICROPHONE LINE INPUT OR ANALOG MICROPHONE LINE INPUT 1 2 3 4 STEREO DIGITAL MICROPHONE 1 STEREO DIGITAL MICROPHONE 2 MICROPHONE 1 PREAMP/PGA (DIFFERENTIAL) MICROPHONE 2 PREAMP/PGA (DIFFERENTIAL) OR DIGITAL MICROPHONE LINE INPUT A PGA 5 (DIFFERENTIAL OR 6 SINGLE-ENDED) OR ANALOG MICROPHONE LINE INPUT LINE INPUT B PGA (DIFF.


V2267 MAX98091 LTC6946


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