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参数资料
| 型号： | MAX4368ETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR .33W MONO 8TDFN |
| 标准包装： | 2,500 |
| 类型： | AB 类 |
| 输出类型： | 1-通道（单声道） |
| 在某负载时最大输出功率 x 通道数量： | 330mW x 1 @ 16 欧姆 |
| 电源电压： | 2.3 V ~ 5.5 V |
| 特点： | 消除爆音，关机，热保护 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
Wireless-Phone Headset Application
Many wireless telephones feature an earbud speaker/in-
line microphone combination for hands-free use. One
common solution is to use a BTL amplifier that drives the
internal speaker and an earplug jack that mutes the inter-
nal speaker by physically disconnecting OUT- when a
headset is plugged in (Figure 7). The headset is driven
single-endedly, requiring an output-coupling capacitor,
COUT, and resulting in a 4x reduction in output power.
Adding Volume Control
The addition of a digital potentiometer provides simple
volume control. Figure 8 shows the MAX4367/MAX4368
with the MAX5160 digital potentiometer used as an
input attenuator. Connect the high terminal of the
MAX5160 to the audio input, the low terminal to ground
and the wiper to CIN. Setting the wiper to the top posi-
tion passes the audio signal unattenuated. Setting the
wiper to the lowest position fully attenuates the input.
Use the 100k
Ω version of the MAX5160.
Layout Considerations
Good layout improves performance by decreasing the
amount of stray capacitance and noise at the amplifi-
er’s inputs and outputs. Decrease stray capacitance by
minimizing PC board trace lengths, using surface-
mount components and placing external components
as close to the device as possible.
UCSP Considerations
For general UCSP information and PC layout considera-
tions, please refer to the Maxim Application Note:
UCSP–A
Wafer-Level Chip-Scale Package.
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
______________________________________________________________________________________
13
OUT+
HEADPHONE JACK
OUT-
8
5
C
OUT
MAX4366
MAX4367
MAX4368
Figure 6. MAX4367 Headphone Application Circuit
EARBUD SPEAKER
JACK
INTERNAL
LOUDSPEAKER
COUT
OUT+
OUT-
MAX4366
MAX4367
MAX4368
Figure 7. Headset with Internal Speaker Application Circuit
OUT+
AUDIO
INPUT
OUT-
IN-
3H
W5
4
5
8
C
IN
6L
MAX4367
MAX4368
MAX5160
Figure 8. MAX4367/MAX5160 Volume Control Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4368EUA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4369EBL+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4369EBL+T | 功能描述:高速运算放大器 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX436C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX436CPD | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
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