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參數(shù)資料
| 型號： | HMP8117CNZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 18/45頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC VIDEO DECODER NTSC/PAL 80PQFP |
| 標準包裝： | 66 |
| 類型： | 視頻解碼器 |
| 應用： | 視頻 |
| 電壓 - 電源，模擬： | 4.75 V ~ 5.25 V |
| 電壓 - 電源，數(shù)字： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 80-BQFP |
| 供應商設備封裝： | 80-QFP（14x20） |
| 包裝： | 托盤 |
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FN4643.4
July 29, 2009
TABLE 16. ANALOG INPUT CONTROL REGISTER
SUB ADDRESS = 05H
BIT
NO.
FUNCTION
DESCRIPTION
RESET
STATE
7-6
Lock Loss
Video Gain
Select
If bits 5-4 do not equal “01”, these bits indicate what mode the AGC circuitry will be after loss of
sync. If bits 5-4 equal “01”, these bits are ignored.
00 = Automatic gain control: bits 5-4 will be reset to “01”
01 = Maintain fixed gain: bits 5-4 will not be changed
10 = Normal AGC switching to fixed gain after lock achieved: bits 5-4 will not be reset to “01”
unless they indicated “freeze automatic gain control”
11 = reserved
00B
5-4
Video Gain
Control Select
00 = Fixed 1x gain
01 = Automatic gain control
10 = Fixed gain control. (Use gain factor from Video Gain Adjust register 1DH.)
11 = Freeze automatic gain control
01B
3
Digital Anti-Alias
Filter Control
0 = Internal digital anti-alias filter is active.
1 = Internal digital anti- alias filter is bypassed. (Not Recommended)
0B
2-0
Video Signal
Input Select
000 = CVBS1
001 = CVBS2
010 = CVBS3
011 = S-video
1XX = reserved
000B
TABLE 17. COLOR PROCESSING REGISTER
SUB ADDRESS = 06H
BIT
NO.
FUNCTION
DESCRIPTION
RESET
STATE
7-6
Digital Color Gain
Control Select
00 = No gain control (gain = 1x)
01 = Automatic gain control
10 = Fixed gain control. (Use gain factor from Color Gain Adjust register 1CH.)
11 = Freeze automatic gain control
01B
5-4
Color Killer
Select
00 = Force color on
01 = Enable color killer
10 = reserved
11 = Force color off
01B
3-2
Color Coring
Select
Coring may be used to reduce low-level noise in the CbCr signals.
00 = No coring
01 = 1 code coring
10 = 2 code coring
11 = 3 code coring
00B
1
Contrast Control
Select
This bit specifies whether the contrast control affects just the Y data (“0”) or both the Y and CbCr
data (“1”). To avoid color shifts when changing contrast, this bit should be a “1”.
0 = Contrast controls only Y data
1 = Contrast controls Y and CbCr data
1B
0
Color Low-Pass
Filter Select
This bit selects the bandwidth of the CbCr data.
0 = 850kHz
1 = 1.5MHz
0B
HMP8117
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