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MAX98091: Ultra-Low Power Stereo Audio Codec Data Sheet (Rev. 2)12/23/2014PDF7M
MAX98091
Ultra-Low Power Stereo Audio Codec
High-Performance Audio Codec with Ultra-Low Power Consumption and Small Footprint for Portable Applications
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Overview
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 6mm x 6mm x 0.75mm TQFN Packages
Product Details
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.
Applications
- Smartphones
- Tablets
Product Categories
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (2)
Documentation & Resources
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MAX98091 Reliability Data1/12/2023PDF124K
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Types of Audio Amplifiers5/24/2013
Tools & Simulations
Software Development
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.