MAX9888 Maxim Integrated Products, MAX9888 Datasheet
MAX9888
Manufacturer Part Number
MAX9888
Description
Stereo Audio CODEC
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX9888.pdf
(115 pages)
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DataSheet.in
DirectDrive is a registered trademark and FLEXSOUND is a
trademark of Maxim Integrated Products, Inc.
19-5235; Rev 0; 6/10
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.
The MAX9888 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.
DirectDrive
ground-referenced output, eliminating the need for
large DC-blocking capacitors. 1.8V headphone opera-
tion ensures low power consumption. The device also
includes a differential receiver amplifier.
Three differential analog microphone inputs are available
as well as support for two PDM digital microphones.
Integrated switches allow 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 loud-
speaker performance by optimizing the signal level and
frequency response while limiting the maximum distor-
tion 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.
®
headphone amplifiers provide a true
_______________________________________________________________ Maxim Integrated Products 1
LINEIN A1
LINEIN A2
LINEIN B1
LINEIN B2
General Description
DIGITAL MICROPHONE
+
+
INPUT
with FLEXSOUND Technology
MIX
CONTROL
ADC
ADC
I
2
C
S 100dB DR Stereo DAC (8kHz < f
S 91dB DR Stereo ADC (8kHz < f
S Stereo Low EMI Class D Amplifiers
S Stereo DirectDrive Headphone Amplifiers
S Differential Receiver Amplifier
S 2 Stereo Single-Ended/Mono Differential Line
S 3 Differential Microphone Inputs
S FLEXSOUND Technology
S Dual I
S Asynchronous Digital Mixing
S Supports Master Clock Frequencies from 10MHz
S RF Immune Analog Inputs and Outputs
S Extensive Click-and-Pop Reduction Circuitry
S I
S 63 WLP Package (3.80mm x 3.30mm, 0.4mm Pitch)
+Denotes lead(Pb)-free/RoHS-compliant package.
FLEXSOUND TECHNOLOGY
• 5-BAND PARAMETRIC EQ
• AUTOMATIC LEVEL CONTROL
• LOUDSPEAKER PROCESSING
• MICROPHONE PROCESSING
• ASYNCHRONOUS DIGITAL
• EXCURSION LIMITER
• THD LIMITER
• POWER LIMITER
• AUTOMATIC GAIN CONTROL
• NOISE GATE
MIXING
MAX9888EWY+
INTERFACE
I
Inputs
to 60MHz
DIGITAL
2
AUDIO
S/PCM
2
MAX9888
C Control Interface
Stereo Audio CODEC
950mW/Channel (8I, V
5-Band Parametric EQ
Automatic Level Control (ALC)
Excursion Limiter
Speaker Power Limiter
Speaker Distortion Limiter
Microphone Automatic Gain Control
and Noise Gate
PART
INTERFACE
2
I
2
DIGITAL
AUDIO
S/PCM
S/PCM/TDM Digital Audio Interfaces
DAC
DAC
Simplified Block Diagram
MIX
-40NC to +85NC
TEMP RANGE
HEADPHONE AMP
HEADPHONE AMP
RECEIVER AMP
SPEAKER AMP
SPEAKER AMP
Ordering Information
SPKVDD_
S
S
< 96kHz)
< 96kHz)
PIN-PACKAGE
= 4.2V)
Features
63 WLP
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