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 I
2
S/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
S
S
S
S
S
S
S
S
S
S
3.2W per Channel (4I , PVDD½ = 5.0V)
1.2W per Channel (8I , PVDD½ = 4.2V)
Stereo DirectDriveM Headphone Amplifiers
33mW per Channel (32I)
Differential Receiver Amplifier
2 Stereo Single-Ended/Mono Differential Line
Inputs
3 Differential Microphone Inputs
FlexSound Audio Processing
Enhanced Speakerphone
Single/Dual Microphone Noise Suppression
Ambient Aware Receiver Output
Acoustic Echo Cancellation
Three I
2
S/PCM/TDM Digital Audio Interfaces
Asynchronous Digital Mixing and Sample Rate
Conversion
Extensive Click-and-Pop Reduction Circuitry
I
2
C/SPI Control Interface
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
1.8V 1.2V
POWER SUPPLY
OR
DIGITAL
OR
DIGITAL
ANALOG
MIC
INPUT
ANALOG
JACK
DETECTION
LINE
INPUT
LINE
OUTPUT
ANALOG
MIC
INPUT
•
•
•
•
•
•
•
•
MIC
INPUT
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
BATTERY I
2
C/SPI
CONTROL
I
2
S/PCM
DIGITAL AUDIO
INTERFACE
I
2
S/PCM
DIGITAL AUDIO
INTERFACE
I
2
S/PCM
DIGITAL AUDIO
INTERFACE
EARPIECE
AMPLIFIER
CLASS D
AMPLIFIER
CLASS D
AMPLIFIER
CHARGE
PUMP
CLASS H
AMPLIFIER
STEREO
ADC
STEREO
ADC
MAX98095
½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
Maxim Integrated Products
1
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.
MCU
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