參數(shù)資料
型號: BT865AKPF
英文描述: Color Encoder Circuit
中文描述: 顏色編碼器電路
文件頁數(shù): 46/76頁
文件大小: 1050K
代理商: BT865AKPF
877 [785]
1.0 Circuit Description
Bt864A/865A
1.15 Analog Outputs
YCrCb to NTSC/PAL Digital Video Encoder
1-36
Conexant
100138B
Figure 1-25. C (Chrominance) Video Output Waveform SETUPDIS = 1
NOTE(S):
Typical with 37.5
load, nominal RSET, and chroma on. ITU-RBT.470-3 levels are assumed. 100% saturation
(100/0/100/0) color bars are shown.
W
Y
C
G
M
R
B
B
Color Burst
(10 Cycles)
28.88
1.083
mA
V
5.27
0.198
21.08
0.791
17.07
0.640
13.07
0.490
Blank
Level
Table 1-11. C (Chrominance) Video Output Truth Table SETUPDIS = 1
Description
Iout (mA)
DAC Data
Sync Interval
BLANK*
(1)
Peak Chroma (High)
28.88 [26.06]
x
1
Burst (High)
21.08 [21.08]
635 [635]
x
x
Blank
17.07 [17.07]
512 [512]
x
0
Burst (Low)
13.07 [13.07]
389 [389]
x
x
Peak Chroma (Low)
5.27 [7.97]
147 [239]
x
1
NOTE(S):
(1)
BLANK occurs by external BLANK* pin or internally generated BLANK.
2. Typical with 37.5
load, nominal RSET, and chroma on. ITU-RBT.470-3 levels are assumed. 100% saturation (100/0/100/0)
color bars are shown.
3. Bracketed values indicate expected values when using the internal color bars (100/0/75/0).
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