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VCT3801A 参数 Datasheet PDF下载

VCT3801A图片预览
型号: VCT3801A
PDF下载: 下载PDF文件 查看货源
内容描述: 视频/控制/图文电视IC系列 [Video/Controller/Teletext IC Family]
分类和应用: 电视
文件页数/大小: 172 页 / 2219 K
品牌: MICRONAS [ MICRONAS ]
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VCT 38xxA  
ADVANCE INFORMATION  
Table 2–4: I2C control and status registers of the video back-end  
2
I C Sub  
address  
Number  
of bits  
Mode  
Function  
Default Name  
1) priority mask register  
If bit[x] is set to 1 then the function is active for the respective signal priority  
Luminance Channel  
h’61  
h’65  
h’51  
h’55  
h’75  
9
9
9
9
9
w v  
w v  
w v  
w v  
w v  
bit [5:0]  
bit [5:0]  
bit [8:0]  
bit [8:0]  
0..63/32  
main picture contrast  
side picture contrast  
main picture brightness  
side picture brightness  
32 CTM  
32 CTS  
0 BRM  
0..63/32  
256..255  
256..255  
0 BRS  
luma channel, priority mask register  
0 PBCT 1)  
bit [7:0]  
0/1  
select contrast, brightness, matrix  
for main/side picture  
PBERGB 1)  
0
h’71  
h’59  
9
9
w v  
w v  
luma channel, priority mask register  
bit [7:0]  
0/1  
select main (video) / external (via CLUT)  
RGB  
Black-Level Expander  
black-level expander  
BLE1  
8 BTLT  
12 BAM  
bit [3:0]  
bit [8:4]  
0..15  
0...31  
tilt coefficient  
amount  
h’5d  
h’73  
9
9
w v  
w v  
black-level expander, threshold:  
bit [8:0] 0..511 disable expansion, threshold value  
BLE2  
200 BTHR  
black-level expander, measurement  
BLE3  
0 BWL  
15 BVST  
bit[0]  
bit [8:1]  
0/1  
0..255 vstart/2  
start line = vstart  
50/60 Hz measurement windowlength  
stop line = 336/283 vstart  
or vertical blanking  
h’7d  
h’69  
9
9
w v  
w v  
black-level expander, priority mask register  
0 PBBLE 1)  
bit [7:0]  
0/1  
enable/disable black-level expander  
Dynamic Peaking  
luma peaking filter, the gain at high frequencies and small signal  
amplitudes is: 1 + (k1+k2)/8  
PK1  
bit [3:0]  
bit [7:4]  
bit [8]  
0..15  
0..15  
0/1  
k1: peaking level undershoot  
k2: peaking level overshoot  
peaking value normal/inverted  
(peaking/softening)  
4 PKUN  
4 PKOV  
0 PKINV  
h’6d  
h’79  
9
9
w v  
w v  
luma peaking filter, coring  
PK2  
3 COR  
bit [4:0]  
bit [7:5]  
bit [8]  
low  
0..31  
coring level  
reserved  
peaking filter center frequency high/  
0/1  
0 PFS  
luma peaking filter, priority mask register  
0 PBPK 1)  
bit [7:0]  
0/1  
disable/enable peaking transient  
suppression when signal is switched  
34  
Micronas  
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