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MAX9888_V01

更新时间: 2024-11-06 02:52:55
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
115页 11070K
描述
Stereo Audio CODEC with FlexSound Technology

MAX9888_V01 数据手册

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19-5235; Rev 1; 2/11  
Stereo Audio CODEC  
with FlexSound Technology  
General Description  
The MAX9888 is a full-featured audio CODEC whose  
high performance and low power consumption make it  
ideal for portable applications.  
Features  
S 100dB DR Stereo DAC (8kHz < f < 96kHz)  
S
S 91dB DR Stereo ADC (8kHz < f < 96kHz)  
S
S Stereo Low EMI Class D Amplifiers  
950mW/Channel (8I, V  
= 4.2V)  
SPKVDD_  
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.  
S Stereo DirectDrive Headphone Amplifiers  
S Differential Receiver Amplifier  
S 2 Stereo Single-Ended/Mono Differential Line  
Inputs  
S 3 Differential Microphone Inputs  
®
DirectDrive headphone amplifiers provide a true  
S FlexSound Technology  
5-Band Parametric EQ  
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.  
Automatic Level Control (ALC)  
Excursion Limiter  
Speaker Power Limiter  
Speaker Distortion Limiter  
Microphone Automatic Gain Control  
and Noise Gate  
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.  
S Dual I2S/PCM/TDM Digital Audio Interfaces  
S Asynchronous Digital Mixing  
S Supports Master Clock Frequencies from 10MHz  
to 60MHz  
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.  
S RF Immune Analog Inputs and Outputs  
S Extensive Click-and-Pop Reduction Circuitry  
S I2C Control Interface  
S 63 WLP Package (3.80mm x 3.30mm, 0.4mm Pitch)  
Ordering Information  
The device is fully specified over the -40NC to +85NC  
extended temperature range.  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX9888EWY+  
-40NC to +85NC  
63 WLP  
DirectDrive is a registered trademark and FlexSound is a  
trademark of Maxim Integrated Products, Inc.  
+Denotes lead(Pb)-free/RoHS-compliant package.  
Simplified Block Diagram  
2
I
2
2
I S/PCM  
C
I
S/PCM  
RECEIVER AMP  
DIGITAL  
AUDIO  
DIGITAL  
AUDIO  
CONTROL  
INTERFACE  
INTERFACE  
DIGITAL MICROPHONE  
SPEAKER AMP  
INPUT  
FlexSound TECHNOLOGY  
• 5-BAND PARAMETRIC EQ  
• AUTOMATIC LEVEL CONTROL  
• LOUDSPEAKER PROCESSING  
• EXCURSION LIMITER  
• THD LIMITER  
ADC  
DAC  
SPEAKER AMP  
MIX  
MIX  
• POWER LIMITER  
LINEIN A1  
• MICROPHONE PROCESSING  
• AUTOMATIC GAIN CONTROL  
• NOISE GATE  
• ASYNCHRONOUS DIGITAL  
MIXING  
HEADPHONE AMP  
ADC  
DAC  
LINEIN A2  
+
LINEIN B1  
MAX9888  
HEADPHONE AMP  
LINEIN B2  
+
_______________________________________________________________ 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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