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Ultra-Low Power Stereo Audio Codec

A High-Performance Audio Codec with Ultra-Low Power Consumption and Small Footprint for Portable Applications

Product Details

Key Features

Applications/Uses

Parametric specs for Audio Data Converters
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
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Simplified Block Diagram

Technical Docs

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Parameters

Parametric specs for Audio Data Converters
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.

Simplified Block Diagram

MAX98090: Simplified Block Diagram MAX98090: Simplified Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .