MAX98090
Ultra-Low Power Stereo Audio Codec
A High-Performance Audio Codec with Ultra-Low Power Consumption and Small Footprint for Portable Applications
Maxim Confidential 
MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
| Functions | Audio CODEC |
| VSUPPLY (V) (min) | 1.08 (Digital) 1.65 (Analog) 1.65 (Digital) 2.8 (Class D) |
| VSUPPLY (V) (max) | 1.98 (Digital) 2.0 (Analog) 3.6 (Digital) 5.5 (Class D) |
| IQ (mA) | 2.49 (DAC Playback Headphone) 3.64 (Full Duplex Mono Receiver Out) 4.14 (DAC Playback Stereo Speaker) |
| # ADCs | 2 |
| # DACs | 2 |
| SNR (dB) (ADC) | 99 |
| Bit Depth (ADC) | 24 |
| Sample Rate (kHz) (ADC) | 8 to 96 |
| SNR (dB) (DAC) | 102 |
| Bit Depth (DAC) | 24 |
| Sample Rate (kHz) (DAC) | 8 to 96 |
| Pitch (mm) | 0.4 |
| Interface | Audio - I2S Audio - PCM/TDM Serial - I2C Serial - SPI |
| Package/Pins | TQFN/40 WLP/49 |
| Budgetary Price (See Notes) | 2.93 |
Simplified Block Diagram
Technical Docs
| Data Sheet | Ultra-Low Power Stereo Audio Codec | Jan 23, 2019 | |
| Tutorial | Types of Audio Amplifiers |
View a video that highlights the features of the MAX98090.
Enhancing Battery Life and Audio Performance in Mobile Devices
A Better Listening Experience Starts with the Right Stereo Audio Codec
Enhance Battery Life and Sound Quality for Hearables and Wearables with the MAX98090 Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
| Functions | Audio CODEC |
| VSUPPLY (V) (min) | 1.08 (Digital) 1.65 (Analog) 1.65 (Digital) 2.8 (Class D) |
| VSUPPLY (V) (max) | 1.98 (Digital) 2.0 (Analog) 3.6 (Digital) 5.5 (Class D) |
| IQ (mA) | 2.49 (DAC Playback Headphone) 3.64 (Full Duplex Mono Receiver Out) 4.14 (DAC Playback Stereo Speaker) |
| # ADCs | 2 |
| # DACs | 2 |
| SNR (dB) (ADC) | 99 |
| Bit Depth (ADC) | 24 |
| Sample Rate (kHz) (ADC) | 8 to 96 |
| SNR (dB) (DAC) | 102 |
| Bit Depth (DAC) | 24 |
| Sample Rate (kHz) (DAC) | 8 to 96 |
| Pitch (mm) | 0.4 |
| Interface | Audio - I2S Audio - PCM/TDM Serial - I2C Serial - SPI |
| Package/Pins | TQFN/40 WLP/49 |
| Budgetary Price (See Notes) | 2.93 |
Key Features
- 102dB DR Stereo DAC to HP (8kHz < fS < 96kHz)
- 3.6mW Stereo Playback Power Consumption
- 99dB DR Stereo ADC (8kHz < fS < 96kHz)
- 4.2mW Stereo Record Power Consumption
- 3 Stereo Single-Ended/Differential Analog Microphone/Line Inputs (WLP Version)
- Stereo PDM Digital Microphone Input
- 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, VSPK_VDD = 5V, WLP)
- 1.8W/Channel (RL = 8Ω, VSPK_VDD = 5V, WLP)
- 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 with Two Address Options
- 49-Bump 0.4mm WLP and 40-Pin TQFN Packages
Applications/Uses
- Smartphones
- Tablets
Description
The MAX98090 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 (WLP) 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.
Enhance Battery Life and Sound Quality for Hearables and Wearables with the MAX98090. View a video that highlights the features of the MAX98090. View a video that shows how to setup the MAX98090 evaluation kit.Technical Docs
| Data Sheet | Ultra-Low Power Stereo Audio Codec | Jan 23, 2019 | |
| Tutorial | Types of Audio Amplifiers |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Request a Quote