ZHCSH64D June   2017  – August 2018 DAC60508 , DAC70508 , DAC80508

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化方框图
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Digital-to-Analog Converter (DAC) Architecture
        1. 8.3.1.1 DAC Transfer Function
        2. 8.3.1.2 Output Amplifiers
        3. 8.3.1.3 DAC Register Structure
          1. 8.3.1.3.1 DAC Register Synchronous and Asynchronous Updates
          2. 8.3.1.3.2 Broadcast DAC Register
          3. 8.3.1.3.3 CLEAR Operation (DACx0508C only)
      2. 8.3.2 Internal Reference
        1. 8.3.2.1 Reference Divider
        2. 8.3.2.2 Solder Heat Reflow
      3. 8.3.3 Device Reset Options
        1. 8.3.3.1 Power-on-Reset (POR)
        2. 8.3.3.2 Software Reset
    4. 8.4 Device Functional Modes
      1. 8.4.1 Stand-Alone Operation
      2. 8.4.2 Daisy-Chain Operation
      3. 8.4.3 Frame Error Checking
      4. 8.4.4 Power-Down Mode
    5. 8.5 Programming
    6. 8.6 Register Map
      1. 8.6.1 NOP Register (address = 0x00) [reset = 0x0000]
        1. Table 9. NOP Register Field Descriptions
      2. 8.6.2 DEVICE ID Register (address = 0x01) [reset = 0x---]
        1. Table 10. DEVICE ID Field Descriptions
      3. 8.6.3 SYNC Register (address = 0x2) [reset = 0xFF00]
        1. Table 11. SYNC Register Field Descriptions
      4. 8.6.4 CONFIG Register (address = 0x3) [reset = 0x0000]
        1. Table 12. CONFIG Register Field Descriptions
      5. 8.6.5 GAIN Register (address = 0x04) [reset = 0x---]
        1. Table 13. GAIN Register Field Descriptions
      6. 8.6.6 TRIGGER Register (address = 0x05) [reset = 0x0000]
        1. Table 14. TRIGGER Register Field Descriptions
      7. 8.6.7 BRDCAST Register (address = 0x6) [reset = 0x0000]
        1. Table 15. BRDCAST Register Field Descriptions
      8. 8.6.8 STATUS Register (address = 0x7) [reset = 0x0000]
        1. Table 16. STATUS Register Field Descriptions
      9. 8.6.9 DACx Register (address = 0x8 to 0xF) [reset = 0x0000 or 0x8000]
        1. Table 17. DACx Register Field Descriptions
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Interfacing to Microcontroller
      2. 9.1.2 Programmable Current Source Circuit
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
  12. 12器件和文档支持
    1. 12.1 相关链接
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 术语表
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.6.5 GAIN Register (address = 0x04) [reset = 0x---]

Figure 71. GAIN Register
15 14 13 12 11 10 9 8
Reserved Reserved/
CLR-4TO7-MSK(1) 		Reserved/
CLR-0TO3-MSK(1) 		REFDIV-EN
— R/W R/W R/W
7 6 5 4 3 2 1 0
BUFF7-GAIN BUFF6-GAIN BUFF5-GAIN BUFF4-GAIN BUFF3-GAIN BUFF2-GAIN BUFF1-GAIN BUFF0-GAIN
R/W R/W R/W R/W R/W R/W R/W R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
(1) DACx0508C only. Reserved bits in DACx0508.

Table 13. GAIN Register Field Descriptions

Bit Field Type Reset Description
15:11 Reserved — 0 Reserved for factory use.
10 Reserved / CLR-4TO7-MSK R/W 0 DACx0508. Reserved for factory use.
DACx0508C. When cleared to 0 the corresponding DAC group is set to clear in response to a logic-low value on the CLR pin.
When set to 1 the corresponding DAC group remains unaffected by the CLR pin.
9 Reserved / CLR-0TO3-MSK R/W 0
8 REFDIV-EN R/W 0/1 When set to 1 the reference voltage is internally divided by a factor of 2.
When cleared to 0 the reference voltage is unaffected.
7 BUFF7-GAIN R/W 0/1 When set to 1 the buffer amplifier for corresponding DAC has a gain of 2. Default value for the DACx0508M devices.
When cleared to 0 the buffer amplifier for corresponding DAC has a gain of 1. Default value for the DACx0508Z devices.
6 BUFF6-GAIN R/W 0/1
5 BUFF5-GAIN R/W 0/1
4 BUFF4-GAIN R/W 0/1
3 BUFF3-GAIN R/W 0/1
2 BUFF2-GAIN R/W 0/1
1 BUFF1-GAIN R/W 0/1
0 BUFF0-GAIN R/W 0/1
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