ZHCSDC6D November 2014 – February 2018 AMC7836
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
-
6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 6.4 Thermal Information
- 6.5 Electrical Characteristics: DAC
- 6.6 Electrical Characteristics: ADC and Temperature Sensor
- 6.7 Electrical Characteristics: General
- 6.8 Timing Requirements
- 6.9 Typical Characteristics: DAC
- 6.10 Typical Characteristics: ADC
- 6.11 Typical Characteristics: Reference
- 6.12 Typical Characteristics: Temperature Sensor
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3 Feature Description
- 7.4 Device Functional Modes
- 7.5 Programming
- 7.6
Register Maps
- 7.6.1 Interface Configuration: Address 0x00 – 0x02
- 7.6.2
Device Identification: Address 0x03 – 0x0D
- 7.6.2.1 Chip Type Register (address = 0x03) [reset = 0x08]
- 7.6.2.2 Chip ID Low Byte Register (address = 0x04) [reset = 0x36]
- 7.6.2.3 Chip ID High Byte Register (address = 0x05) [reset = 0x0C]
- 7.6.2.4 Version ID Register (address = 0x06) [reset = 0x00]
- 7.6.2.5 Manufacturer ID Low Byte Register (address = 0x0C) [reset = 0x51]
- 7.6.2.6 Manufacturer ID High Byte Register (address = 0x0D) [reset = 0x04]
- 7.6.3 Register Update (Buffered Registers): Address 0x0F
- 7.6.4
General Device Configuration: Address 0x10 through 0x17
- 7.6.4.1 ADC Configuration Register (address = 0x10) [reset = 0x00]
- 7.6.4.2 False Alarm Configuration Register (address = 0x11) [reset = 0x70]
- 7.6.4.3 GPIO Configuration Register (address = 0x12) [reset = 0x00]
- 7.6.4.4 ADC MUX Configuration 0 Register (address = 0x13) [reset = 0x00]
- 7.6.4.5 ADC MUX Configuration 1 Register (address = 0x14) [reset = 0x00]
- 7.6.4.6 ADC MUX Configuration 2 Register (address = 0x15) [reset = 0x00]
- 7.6.4.7 DAC Clear Enable 0 Register (address = 0x18) [reset = 0x00]
- 7.6.4.8 DAC Clear Enable 1 Register (address = 0x19) [reset = 0x00]
- 7.6.5 DAC Clear and ALARMOUT Source Select: Address 0x1A through 0x1D
- 7.6.6 DAC Range: Address 0x1E
- 7.6.7
ADC and Temperature Data: Address 0x20 through 0x4B
- 7.6.7.1 ADCn-Data (Low Byte) Register (address = 0x20 through 0x49) [reset = 0x00]
- 7.6.7.2 ADCn-Data (High Byte) Register (address = 0x20 through 0x49) [reset = 0x00]
- 7.6.7.3 Temperature Data (Low Byte) Register (address = 0x4A) [reset = 0x00]
- 7.6.7.4 Temperature Data (High Byte) Register (address = 0x4B) [reset = 0x00]
- 7.6.8 DAC Data: Address 0x50 through 0x6F
- 7.6.9 Status Registers: Address 0x70 through 0x72
- 7.6.10 GPIO: Address 0x7A
- 7.6.11
Out-Of-Range ADC Thresholds: Address 0x80 through 0x93
- 7.6.11.1 ADCn-Upper-Thresh (Low Byte) Register (address = 0x80 through 0x93) [reset = 0xFF]
- 7.6.11.2 ADCn-Upper-Thresh (High Byte) Register (address = 0x80 through 0x93) [reset = 0x0F]
- 7.6.11.3 ADCn-Lower-Thresh (Low Byte) Register (address = 0x80 through 0x93) [reset = 0x00]
- 7.6.11.4 ADCn-Lower-Thresh (High Byte) Register (address = 0x80 through 0x93) [reset = 0x00]
- 7.6.11.5 LT-Upper-Thresh (Low Byte) Register (address = 0x94) [reset = 0xFF]
- 7.6.11.6 LT-Upper-Thresh (High Byte) Register (address = 0x95) [reset = 0x07]
- 7.6.11.7 LT-Lower-Thresh (Low Byte) Register (address = 0x96) [reset = 0x00]
- 7.6.11.8 LT-Lower-Thresh (High Byte) Register (address = 0x97) [reset = 0x08]
- 7.6.12 Alarm Hysteresis Configuration: Address 0xA0 and 0xA5
- 7.6.13
Clear and Power-Down Registers: Address 0xB0 through 0XB4
- 7.6.13.1 DAC Clear 0 Register (address = 0xB0) [reset = 0x00]
- 7.6.13.2 DAC Clear 1 Register (address = 0xB1) [reset = 0x00]
- 7.6.13.3 Power-Down 0 Register (address = 0xB2) [reset = 0x00]
- 7.6.13.4 Power-Down 1 Register (address = 0xB3) [reset = 0x00]
- 7.6.13.5 Power-Down 2 Register (address = 0xB4) [reset = 0x00]
- 7.6.14 ADC Trigger: Address 0xC0
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11器件和文檔支持
- 12機械、封裝和可訂購信息
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
- PAP|64
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
- PAP|64
訂購信息
8.1 Application Information
The AMC7836 device is a highly integrated, low-power, analog monitoring and control solution that includes a 21-channel (12-bit) ADC, 16-channel (12-bit) DACs, eight GPIO, and a local temperature sensor. Although the device can be used in many different closed-loop systems, including industrial control and test and measurement, the device is largely used as a power amplifier controller in multi-channel RF communication applications.
Power amplifiers (PAs) include transistor technologies that are extremely temperature sensitive, and require DC biasing circuits to optimize RF performance, power efficiency, and stability. The AMC7836 device provides 16 DAC channels which can be used to adjust the power amplifier bias points in response to temperature changes. The device also includes an internal local temperature sensor, and 21 ADC channels for general-purpose monitoring.
Current and temperature sensing are typically implemented in power amplifier controller applications. PA drain current sensing is implemented by measuring the differential voltage drop across a shunt resistor. Temperature variations during PA operation can be detected either through the AMC7836 internal temperature sensor or through remote temperature ICs or thermistors configured to interface with the ADC analog inputs available in the device. Figure 115 shows the block diagram for these different systems.
Figure 115. AMC7836 Example Control and Monitor System