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MAX97000

更新时间: 2024-02-12 10:16:52
品牌 Logo 应用领域
美信 - MAXIM 放大器
页数 文件大小 规格书
33页 3483K
描述
Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier

MAX97000 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:,
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.81
商用集成电路类型:VOLUME CONTROL CIRCUITJESD-609代码:e1
湿度敏感等级:1峰值回流温度(摄氏度):NOT SPECIFIED
端子面层:Tin/Silver/Copper (Sn/Ag/Cu)处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

MAX97000 数据手册

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19-5004; Rev 0; 11/09  
Audio Subsystem with Mono Class D  
Speaker and Class H Headphone Amplifier  
General Description  
Features  
The MAX97000 audio subsystem combines a mono  
speaker amplifier with a stereo headphone amplifier and  
an analog DPST switch. The headphone and speaker  
amplifiers have independent volume control and on/off  
control. The four inputs are configurable as two differen-  
tial inputs or four single-ended inputs.  
S 2.7V to 5.5V Single Supply Voltage  
S 725mW Speaker Output (V  
= 3.7V, Z  
= 8I  
PVDD  
SPK  
+ 68µH)  
S 40mW/Channel Headphone Output (R  
S Low-Emission Class D Amplifier  
= 16I)  
HP  
S Efficient Class H Headphone Amplifier  
S Ground-Referenced Headphone Outputs  
The entire subsystem is designed for maximum efficiency.  
The high-efficiency 725mW Class D speaker amplifier  
operates directly from the battery and consumes no more  
than 1FA in shutdown mode. The Class H headphone  
amplifier utilizes a dual-mode charge pump to maximize  
efficiency while outputting a ground-referenced signal  
that does not require output coupling capacitors.  
S Two Stereo Single-Ended/Mono Differential Inputs  
S Integrated Distortion Limiter (Speaker Outputs)  
S Integrated DPST Analog Switch  
S No Clicks and Pops  
The speaker amplifier incorporates a distortion limiter to  
automatically reduce the volume level when excessive  
clipping occurs. This allows high gain for low-level sig-  
nals without compromising the quality of large signals.  
All control is performed using the 2-wire, I2C interface.  
The MAX97000 operates in the extended -40NC to +85NC  
temperature range, and is available in the 2mm x 2mm,  
25-bump WLP package (0.4mm pitch).  
S TDMA Noise Free  
S 2mm x 2mm, 25-Bump 0.4mm Pitch WLP Package  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX97000EWA+  
-40NC to +85NC  
25 WLP  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
Applications  
Cell Phones  
Portable Multimedia Players  
Simplified Block Diagram  
BATTERY  
2.7V TO 5.5V  
2
I C  
POWER SUPPLY  
CONTROL  
MAX97000  
STEREO/  
MONO  
INPUT  
CLASS D  
AMPLIFIER  
VOLUME  
LIMITER  
CLASS H  
AMPLIFIER  
VOLUME  
STEREO/  
MONO  
INPUT  
CHARGE  
PUMP  
SWITCH  
_______________________________________________________________ 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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