参数资料
| 型号： | MAX8821EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/14页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX8821 |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 接口，串行器，解串器（串并行转换器） |
| 已用 IC / 零件： | MAX8821 |
| 已供物品： | 板 |
MAX8821 Evaluation Kit
Audio Input Filter
The fully differential amplifier inputs can be biased at
voltages other than midsupply. The common-mode
feedback circuit adjusts for input bias, ensuring the out-
puts are still biased at midsupply. Input capacitors (C2,
C1 in Figure 5) are not required as long as the com-
mon-mode input voltage is within the specified range
listed in the Electrical Characteristics table found in the
MAX8821 IC data sheet. If the input capacitors are
used in conjunction with on-chip R INT , they form a high-
pass filter that removes the DC bias from an incoming
signal. The AC-coupling capacitor allows the amplifier
to bias the signal to an optimum DC level.
LDO1 and LDO2
The linear regulators are designed for low-dropout and
low quiescent current to maximize battery life. Both
LDOs are controlled through the I 2 C interface, minimiz-
ing the number of control lines to the MAX8821. I 2 C con-
trols the output voltages, and the enable/disable state for
both LDO1 and LDO2. At startup, the LDOs are off but
are preset to 1.2V for LDO1 and 1.5V for LDO2.
Thermal Shutdown
The MAX8821 includes a thermal-limit circuit that shuts
down the IC at a junction temperature of approximately
+160°C. The IC turns on after it cools by approximately
20°C.
Shutdown Mode
The MAX8821 can be put into two different shutdown
modes. The first shutdown mode is achieved by driving
V DD low. In this mode, the I 2 C interface becomes dis-
abled. The second shutdown is a lower power mode.
To enter the low-power mode, disable LED_, audio
amplifier, or LDOs through the MAX8821 EV kit soft-
ware. In low-power mode, the I 2 C interface is still
active.
I 2 C Address
The MAX8821 acts as a slave transmitter/receiver. The
slave address of the MAX8821 is preset to 1001110X,
where X is the R/W bit. The address 0x9C is designated
for write operations and 0x9D for read operations. The
I 2 C register is reset back to the default value when
either V IN drops below the UVLO threshold, or V DD is
driven low.
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8821EVKIT+ | 功能描述:电源管理IC开发工具 MAX8821 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX8822ETE+ | 功能描述:LED照明驱动器 Negative Charge Pump LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX8822ETE+T | 功能描述:LED照明驱动器 Negative Charge Pump LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX882C/D | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX882C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
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