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参数资料
| 型号： | MAX9767ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/33页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO .75W STER AB 32TQFN |
| 标准包装： | 60 |
| 类型： | AB 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 750mW x 2 @ 4 欧姆 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 特点： | 消除爆音，麦克风，静音，短路保护和热保护，关机 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 包装： | 管件 |
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MAX9765/MAX9766/MAX9767
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
20
______________________________________________________________________________________
Write Data Format
There are three registers that configure the
MAX9765/MAX9766: the MUTE register, SHDN register,
and control register. In write data mode (R/W = 0), the
register address and data byte follow the device
address (Figure 7).
MUTE Register
The MUTE register (01hex) is a read/write register that
sets the MUTE status of the device. Bit 3 (MUTEL) of
the MUTE register controls the left channel, bit 4
(MUTER) controls the right channel. A logic high mutes
the respective channel, a logic low brings the channel
out of mute.
SHDN Register
The SHDN register (02hex) is a read/write register that
controls the power-up state of the device. A logic high
in bit 0 of the SHDN register shuts down the device; a
logic low turns on the device. A logic high is required in
bits 2 to 7 to reset all registers to their default register
settings.
Control Register
The control register (03hex) is a read/write register that
determines the device configuration. Bit 1 (IN1/IN2)
controls the input multiplexer, a logic high selects input
1, a logic low selects input 2. Bit 2 (HPS_EN) controls
the headphone sensing. A logic low configures the
device in automatic headphone detection mode. A
logic high disables the HPS input. Bit 3 (INT/EXT) con-
trols the microphone amplifier inputs. A logic low
selects differential (internal) input mode. A logic high
selects single-ended (external) input mode. Bit 4
(SPKR/HP) selects the amplifier operating mode when
SCL
SDA
STOP
START
SCL
SDA
ILLEGAL
STOP
START
LEGAL STOP CONDITION
ILLEGAL EARLY STOP CONDITION
Figure 5. Early STOP Condition
S
A6A5A4A3A2A1A0
R/W
Figure 6. Slave Address Byte Definition
ADD CONNECTION
I
2C ADDRESS
GND
100 1000
VDD
100 1001
SDA
100 1010
SCL
100 1011
Table 2. I2C Slave Addresses
REGISTER
ADDRESS
0000 0001
BIT
NAME
VALUE
DESCRIPTION
7
X
Don’t Care
—
6
X
Don’t Care
—
5
X
Don’t Care
—
0*
Unmute right channel
4
MUTER
1
Mute right channel
0*
Unmute left channel
3
MUTEL
1
Mute left channel
2
X
Don’t Care
—
1
X
Don’t Care
—
0
X
Don’t Care
—
Table 3. MUTE Register Format
*Default state.
HPS_D BIT
HPS
SPKR/
HP BIT
MODE
0
X
BTL
01
X
SE
1
X
0
BTL
1X
1
SE
Table 1. HPS Setting (MAX9765/MAX9766)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9767ETJ+ | 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 |
| MAX9767ETJ+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 |
| MAX9767ETJ-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 |
| MAX9768BETG+ | 功能描述:音频放大器 10W Mono Class D Speaker 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 |
| MAX9768BETG+T | 功能描述:音频放大器 10W Mono Class D Speaker 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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