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参数资料
| 型号： | MAX9768EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/26页 |
| 文件大小： | 0K |
| 描述： | EVALUATION KIT FOR MAX9768 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 放大器类型： | D 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： | 10W x 1 @ 8 欧姆 |
| 电源电压： | 4.5 V ~ 14 V |
| 工作温度： | -40°C ~ 85°C |
| 板类型： | 完全填充 |
| 已用 IC / 零件： | MAX9768 |
| 已供物品： | 板 |
Detailed Description
The MAX9768 10W, Class D audio power amplifier with
spread-spectrum modulation provides a significant step
forward in switch-mode amplifier technology. The
MAX9768 offers Class AB performance with Class D
efficiency and a minimal board space solution. This
device features a wide supply voltage operation (4.5V to
14V), analog or digitally adjusted volume control, exter-
nally set input gain, shutdown mode, SYNC input and
output, speaker mute, and industry-leading click-and-
pop suppression.
The MAX9768 features a 64-step, dual-mode (analog or
I2C programmed) volume control and mute function. In
analog volume control mode, voltage applied to
SDA/VOL sets the volume level. Two address inputs
(ADDR1, ADDR2) set the volume control function
between analog and I2C and set the slave address. In
I2C mode there are three selectable slave addresses
allowing for multiple devices on a single bus.
Spread-spectrum modulation and synchronizable
switching frequency significantly reduce EMI emis-
sions. The outputs use Maxim’s low-EMI modulation
scheme with minimum pulse outputs when the audio
inputs are at the zero crossing. As the input voltage
increases or decreases, the duration of the pulse at
one output increases while the other output pulse dura-
tion remains the same. This causes the net voltage
across the speaker (VOUT+ - VOUT-) to change. The
minimum-width pulse topology reduces EMI and
increases efficiency.
MAX9768
10W Mono Class D Speaker
Amplifier with Volume Control
12
______________________________________________________________________________________
MUTE
VOLUME
CONTROL
CLASS
D
SHUTDOWN
CONTROL
OSCILLATOR
SYNCOUT
BIAS
14
VDD
PVDD
CBIAS
2.2
μF
7
8
1, 2
4
17, 18
15
10
13
FB
RF
30k
Ω
RIN
20k
Ω
CIN
0.47
μF
C1
0.1
μF
C2
0.1
μF
1
μF
1
μF
IN
20
19
6
5
24
23
GND
PGND
OUT+
BOOT+
OUT-
BOOT-
BIAS
12
3, 16
9, 11
21, 22
2.7V to 3.6V
4.5V to 14V
SYNC
MUTE
SHDN
SDA/VOL
SCLK
ADDR1
ADDR2
I2C
ANALOG
CONTROL
MAX9768
(SHOWN IN ANALOG VOLUME CONTOL MODE, AV = 23.5dB, f-3dB = 17Hz, SPREAD-SPECTRUM MODULATION MODE, FILTERLESS MODULATION MODE, MUTE OFF)
Functional Diagram/Typical Application Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9768EVKIT+ | 功能描述:音频 IC 开发工具 MAX9768 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| MAX976ESA | 功能描述:校验器 IC Dual High Speed Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX976ESA+ | 功能描述:校验器 IC Dual High Speed Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX976ESA+T | 功能描述:校验器 IC Dual High Speed Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX976ESA-T | 功能描述:校验器 IC Dual High Speed Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
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