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MAX98089ETN

Description
Low-Power, Stereo Audio Codec with FlexSound Technology 93dB DR Stereo ADC
File Size11MB,131 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX98089ETN Overview

Low-Power, Stereo Audio Codec with FlexSound Technology 93dB DR Stereo ADC

19-5865;
Rev 0;
6/11
EVALUATION KIT AVAILABLE
MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
General Description
The MAX98089 is a full-featured audio codec whose high
performance and low power consumption make it ideal
for portable applications.
Class D speaker amplifiers provide efficient amplification
for two speakers. Low radiated emissions enable com-
pletely filterless operation. Integrated bypass switches
optionally connect an external amplifier to the transducer
when the Class D amplifiers are disabled.
The IC features a stereo Class H headphone amplifier
that utilizes a dual-mode charge pump to maximize effi-
ciency while outputting a ground referenced signal that
does not require output coupling capacitors.
The IC also features a mono differential amplifier that can
also be configured as a stereo line output.
Two differential analog microphone inputs are available as
well as support for two PDM digital microphones. Integrated
switches allow for an additional microphone input as well
as microphone signals to be routed out to external devices.
Two flexible single-ended or differential line inputs may be
connected to an FM radio or other sources.
Integrated FlexSoundK technology improves loudspeak-
er performance by optimizing the signal level and fre-
quency response while limiting the maximum distortion
and power at the output to prevent speaker damage.
Automatic gain control (AGC) and a noise gate optimize
the signal level of microphone input signals to make best
use of the ADC dynamic range.
The device is fully specified over the -40NC to +85NC
extended temperature range.
FlexSound is a trademark of Maxim Integrated Products, Inc.
Features
S
S
S
S
S
S
S
S
S
5.6mW Power Comsumption (DAC to HP at 97dB DR)
101dB DR Stereo DAC (8kHz < f
S
< 96kHz)
93dB DR Stereo ADC (8kHz < f
S
< 96kHz)
Stereo Low EMI Class D Amplifiers
1.7W/Channel (8I, V
SPK½VDD
= 5.0V)
2.9W/Channel (4I, V
SPK½VDD
= 5.0V)
Efficient Class H Headphone Amplifier
Differential Receiver Amplifier/Stereo Line Outputs
2 Stereo Single-Ended/Mono Differential Line
Inputs
3 Differential Microphone Inputs
FlexSound Technology
5-Band Parametric EQ
Automatic Level Control (ALC)
Excursion Limiter
Speaker Power Limiter
Speaker Distortion Limiter
Microphone Automatic Gain Control
and Noise Gate
Dual I
2
S/PCM/TDM Digital Audio Interfaces
Asynchronous Digital Mixing
Supports Master Clock Frequencies from 10MHz
to 60MHz
RF Immune Analog Inputs and Outputs
Extensive Click-and-Pop Reduction Circuitry
Available in 63-Bump WLP Package (3.80mm x
3.30mm, 0.4mm Pitch) and 56-Pin TQFN Package
(7mm x 7mm x 0.75mm)
S
S
S
S
S
S
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/MAX98089.related.
Simplified Block Diagram
I
2
C
I
2
S/PCM
I
2
S/PCM
RECEIVER/LINEOUT AMPS
CONTROL
DIGITAL MICROPHONE
INPUT
DIGITAL
AUDIO
INTERFACE
DIGITAL
AUDIO
INTERFACE
FLEXSOUND TECHNOLOGY
ADC
• 5-BAND PARAMETRIC EQ
• AUTOMATIC LEVEL CONTROL
• LOUDSPEAKER PROCESSING
• EXCURSION LIMITER
• THD LIMITER
• POWER LIMITER
• MICROPHONE PROCESSING
• AUTOMATIC GAIN CONTROL
• NOISE GATE
• ASYNCHRONOUS DIGITAL MIXING
SPEAKER AMP
DAC
MIX
LINEIN A1
ADC
LINEIN A2
SPEAKER AMP
MIX
DAC
HEADPHONE AMP
+
LINEIN B1
MAX98089
LINEIN B2
+
HEADPHONE AMP
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.

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