參數(shù)資料
型號(hào)： ADV7312
廠商： Analog Devices, Inc.
英文描述： Multiformat 11-Bit HDTV Video Encoder
中文描述： 多格式11位高清晰度電視視頻編碼器
文件頁數(shù)： 51/84頁
文件大?。?/td> 975K
代理商： ADV7312
REV. 0
ADV7312
–51–
Adaptive Filter Control Application
Figures 44 and 45 show typical signals to be processed by the
adaptive filter control block.
: 692mV
@: 446mV
: 332ns
@: 12.8ms
Figure 44. Input Signal to Adaptive Filter Control
: 692mV
@: 446mV
: 332ns
@: 12.8ms
Figure 45. Output Signal after Adaptive Filter Control
The following register settings were used to obtain the results
shown in Figure 45, i.e., to remove the ringing on the Y signal.
Input data was generated by an external signal source.
When changing the adaptive filter mode to Mode B [Address 15h,
Bit 6], the following output can be obtained:
: 674mV
@: 446mV
: 332ns
@: 12.8ms
Figure 46. Output Signal from Adaptive Filter Control
The adaptive filter control can also be demonstrated using the
internally generated cross hatch test pattern and toggling the
adaptive filter control bit [Address 15h, Bit 7].
Table XV.
Address
Register Setting
00h
01h
02h
10h
11h
15h
20h
38h
39h
3Ah
3Bh
3Ch
3Dh
FCh
38h
20h
00h
85h
80h
00h
ACh
9Ah
88h
28h
3Fh
64h
Table XIV.
Address
Register Setting
00h
01h
02h
10h
11h
15h
20h
38h
39h
3Ah
3Bh
3Ch
3Dh
FCh
38h
20h
00h
81h
80h
00h
ACh
9Ah
88h
28h
3Fh
64h
All other registers are set as normal/default.
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