ADV7340/ADV7341
目录
特点................................................. ............................................. 1
应用................................................. ...................................... 1
功能框图............................................... ............... 1
修订历史................................................ ............................... 3
详细功能................................................ .............................. 4
概述................................................ ......................... 4
规格................................................. .................................... 5
电源和电压规格.................................. 5
参考电压规范............................................... 5
输入时钟规格............................................... 5 ...........
模拟量输出规格............................................... ...... 6
数字输入/输出规格........................................... 6
数字时序规范............................................... ...... 7
MPU端口时序规格.............................................. 8
电源规格................................................ .................... 8
视频性能规格............................................. 9
时序图................................................ ............................ 10
绝对最大额定值............................................... ........... 18
热阻................................................ .................... 18
ESD注意事项................................................ ................................ 18
引脚配置和功能描述........................... 19
典型性能特征........................................... 21
MPU端口说明............................................... .................... 26
I
2
C操作................................................ .............................. 26
SPI操作................................................ .............................. 27
寄存器映射访问............................................... ........................ 28
注册程序................................................ ............... 28
子地址寄存器（ SR7至SR0 ） ........................................... 28
输入配置................................................ ....................... 45
标准清晰度只有............................................... ........... 45
增强清晰度/高清晰度只有.......................... 46
同时标准清晰度和增强
清晰度/高清晰度.............................................. ......... 46
增强的定义只（ 54兆赫） ................................. 47
输出配置................................................ .................... 48
功能................................................. ........................................... 49
输出过采样................................................ ................ 49
ED / HD非标准定时模式........................................ 49
ED / HD的复位时序............................................. ................... 50
SD副载波频率锁定，副载波相位复位，
和定时复位............................................... ........................ 50
SD VCR FF / RW同步............................................ .................... 51
垂直消隐间隔............................................... .......... 51
SD副载波频率寄存器.......................................... 51
SD逐行扫描模式............................................... ............. 52
SD广场像素模式.............................................. ................. 52
过滤器................................................. ........................................... 53
ED / HD测试图案色彩控制....................................... 54
色彩空间转换矩阵.............................................. 。 54
标清亮度和色彩控制............................................. ........ 55
SD色调调整控制.............................................. ................ 56
标清亮度检测............................................... .................. 56
SD亮度控制............................................... ................ 56
标清输入标准自动检测.......................................... 56
双缓冲................................................ ........................ 57
DAC的可编程增益控制.......................................... 57
Gamma校正................................................ .................... 57
清/高清锐度滤波器和自适应滤波器控制........ 59
清/高清锐度滤波器和自适应滤波器中的应用
举例................................................. ..................................... 60
标清数字降噪.............................................. ........ 61
SD有效视频边沿控制............................................. .... 62
外部水平和垂直
同步控制................................................ ........... 64
低功耗模式............................................... ......................... 65
电缆检测................................................ .......................... 65
DAC自动关断............................................. ............... 65
像素和控制端口回读............................................. 65
复位机构................................................ ........................ 65
印刷电路板布局和设计.................................. 66
DAC配置................................................ .................. 66
电压基准................................................ ....................... 66
视频输出缓冲器和可选择的输出滤波器.................. 66
印刷电路板（ PCB ）布局....................................... 67
典型应用电路............................................... ........ 69
附录1复制生成管理系统.............. 70
SD CGMS ................................................ .................................... 70
ED CGMS ................................................ .................................... 70
高清CGMS ................................................ ................................... 70
CGMS CRC功能............................................... ......... 70
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