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| 型号： | MAX9761EUI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/31页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 3W STER 28TSSOP |
| 标准包装： | 2,500 |
| 类型： | AB 类 |
| 输出类型： | 2-通道（立体声）带立体声耳机 |
| 在某负载时最大输出功率 x 通道数量： | 3W x 2 @ 3 欧姆; 200mW x 2 @ 16 欧姆 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 特点： | 消除爆音，输入多路复用器，静音，关机，热保护， |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 28-TSSOP 裸露焊盘 |
| 封装/外壳： | 28-SOIC（0.173"，4.40mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
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MAX9760–MAX9763
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
12
______________________________________________________________________________________
Detailed Description
The MAX9760–MAX9763 feature 3W BTL speaker
amplifiers, 200mW headphone amplifiers, input multi-
plexers, headphone sensing, and comprehensive click-
and-pop suppression. The MAX9760/ MAX9761 are
stereo BTL/headphone amplifiers. The MAX9762/
MAX9763 are mono BTL/stereo headphone amplifiers.
The MAX9760/MAX9762 are controlled through an I2C-
compatible, 2-wire serial interface. The MAX9761/
MAX9763 are controlled through five logic inputs:
MUTE, SHDN, HPS_EN, GAINA/B, and IN1/2 (see
Selector Guide). The MAX9760–MAX9763 feature
exceptional PSRR (100dB at 1kHz), allowing these
devices to operate from noisy digital supplies without
the need for a linear regulator.
The speaker amplifiers use a BTL configuration. The
signal path is composed of an input amplifier and an
output amplifier. Resistor RIN sets the input amplifier’s
gain, and resistor RF sets the output amplifier’s gain.
The output of these two amplifiers serves as the input to
a slave amplifier configured as an inverting unity-gain
follower. This results in two outputs, identical in magni-
tude, but 180° out of phase. The overall gain of the
speaker amplifiers is twice the product of the two
amplifier gains (see Gain-Setting Resistor section). A
feature of this architecture is that there is no phase
inversion from input to output.
Pin Description (continued)
PIN
MAX9760
MAX9761
MAX9762
MAX9763
QFN
TSSOP
QFN
TSSOP
QFN
TSSOP
QFN
TSSOP
NAME
FUNCTION
19
16
19
16
19
16
19
16
INR1
Right-Channel Input 1
20
17
20
17
20
17
20
17
INR2
Right-Channel Input 2
21
18
21
18
21
18
21
18
GAINRA
Right-Channel Gain Set A
22
19
22
19
22
19
22
19
GAINRB
Right-Channel Gain Set B
24
21
24
21
24
21
24
21
OUTR+
Right-Channel Bridged Amplifier
Positive Output. OUTR+ also
serves as the right-channel
headphone amplifier output.
26
23
26
23
26
23
26
23
OUTR-
Right-Channel Bridged Amplifier
Negative Output
28
25
——
28
25
——
SCL
Serial Clock Line
——
—
12
9
12
9
N.C.
No Connection. Not internally
connected.
——
—
18
15
18
15
GAINM
Mono Gain Set
——
126
——
1
26
MUTE
Active-High Mute Input
——
227
——
2
27
HPS_EN
Headphone Enable. A logic high
enables HPS. A logic low disables
HPS and the device is always
configured as a BTL speaker amp.
——
15
12
——
15
12
GAINA/B
Gain Select. A logic low selects
the gain set by GAIN_A. A logic
high selects the gain set by
GAIN_B.
——
28
25
——
28
25
IN1/2
Input Select. A logic low selects
amplifier input 1. A logic high
selects amplifier input 2.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9761EVKIT | 功能描述:放大器 IC 开发工具 RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX9762ETI | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9762ETI+ | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9762ETI+T | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9762ETI-T | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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