MAX98095 Datasheet, PDF (1/1 Pages) Maxim Integrated Products – Audio Hub with FlexSound Processor

19-6204; Rev 0; 4/12
EVALUATION KIT AVAILABLE
MAX98095
Audio Hub with FlexSound Processor
General Description
The MAX98095 is a full-featured high performance audio
hub with low power consumption and advanced signal
processing, making it ideal for a wide range of portable
applications.
Three differential analog microphone inputs and four 1-bit
digital microphone inputs accept audio from main, acces-
sory, and background microphones. Analog line inputs
accept four single-ended or two differential audio signals.
Three digital audio interfaces support I²S/PCM/TDM
audio formats. Three integrated sample rate converters
and highly configurable signal routing enable a wide
range of use cases. The FlexSoundK audio processor
provides low-power advanced signal processing, includ-
ing equalization, dynamic range compression, speaker
protection, microphone noise suppression, acoustic
echo cancellation, and ambient aware outputs.
Integrated amplifiers can output signals from three DACs
or any of the analog inputs. Amplifiers include a differen-
tial receiver amplifier, a stereo Class D speaker amplifier,
a stereo Class H headphone amplifier and four single-
ended line outputs.
The IC is fully specified over the -40NC to +85NC extended
temperature.
FlexSound is a trademark of Maxim Integrated Products, Inc.
DirectDrive is a registered trademark of Maxim Integrated
Products, Inc.
Benefits and Features
S 102dB DR Stereo DAC (8kHz < f_S < 96kHz)
S 90dB DR Stereo ADC (8kHz < f_S < 96kHz)
S 4.2mW Headphone Playback Power Consumption
S Stereo Low EMI Class D Amplifiers
3.2W per Channel (4I , PVDD_ = 5.0V)
1.2W per Channel (8I , PVDD_ = 4.2V)
S Stereo DirectDriveM Headphone Amplifiers
33mW per Channel (32I)
S Differential Receiver Amplifier
S 2 Stereo Single-Ended/Mono Differential Line
Inputs
S 3 Differential Microphone Inputs
S FlexSound Audio Processing
Enhanced Speakerphone
Single/Dual Microphone Noise Suppression
Ambient Aware Receiver Output
Acoustic Echo Cancellation
S Three I²S/PCM/TDM Digital Audio Interfaces
S Asynchronous Digital Mixing and Sample Rate
Conversion
S Extensive Click-and-Pop Reduction Circuitry
S I²C/SPI Control Interface
S 108 WLP Package (6.4mm x 4.7mm, 0.5mm pitch)
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/MAX98095.related.
Simplified Block Diagram
OR
DIGITAL
ANALOG
OR
DIGITAL
ANALOG
ANALOG
1.8V 1.2V BATTERY I2C/SPI
I2S/PCM
I2S/PCM
I2S/PCM
POWER SUPPLY
CONTROL
DIGITAL AUDIO DIGITAL AUDIO DIGITAL AUDIO
INTERFACE
INTERFACE
INTERFACE
MIC
INPUT
MIC
INPUT
MIC
INPUT
JACK
DETECTION
STEREO
ADC
FlexSound DSP
• 5-BAND PARAMETRIC EQ
• COMPRESSOR /EXPANDER
• ASYNCHRONOUS DIGITAL MIXING
• SAMPLE RATE CONVERSION
• MICROPHONE NOISE SUPPRESSION
• ACOUSTIC ECHO CANCELLATION
• SPEAKER PROTECTION
• AMBIENT AWARE OUTPUTS
MONO
DAC
STEREO
ADC
LINE
INPUT
MAX98095
EARPIECE
AMPLIFIER
CLASS D
AMPLIFIER
CLASS D
AMPLIFIER
CHARGE
PUMP
CLASS H
AMPLIFIER
LINE
OUTPUT
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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.