參數(shù)資料
型號(hào): BT864AKPF
英文描述: Color Encoder Circuit
中文描述: 顏色編碼器電路
文件頁(yè)數(shù): 45/76頁(yè)
文件大?。?/td> 1050K
代理商: BT864AKPF
856 [770]
Bt864A/865A
1.0 Circuit Description
YCrCb to NTSC/PAL Digital Video Encoder
1.15 Analog Outputs
100138B
Conexant
1-35
Figure 1-24. C (Chrominance) Video Output Waveform SETUPDIS = 0
NOTE(S):
Typical with 37.5
load, nominal RSET, and chroma on. SMPTE 170 M levels are assumed. 100% saturation color
bars (100/7.5/100/7.5) are shown.
W
Y
C
G
M
R
B
B
Color Burst
(9 Cycles)
20 IRE
20 IRE
28.21
1.058
mA
V
5.93
0.222
20.88
0.783
17.07
0.640
13.27
0.498
Blank
Level
Table 1-10. C (Chrominance) Video Output Truth Table SETUPDIS = 0
Description
Iout (mA)
DAC Data
Sync Interval
BLANK*
(1)
Peak Chroma (High)
28.21 [25.56]
x
1
Burst (High)
20.88 [20.88]
629 [629]
x
x
Blank
17.07 [17.07]
512 [512]
x
0
Burst (Low)
13.27 [13.27]
395 [395]
x
x
Peak Chroma (Low)
5.93 [8.53]
168 [254]
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. SMPTE 170 M levels are assumed. 100% saturation color bars
(100/7.5/100/7.5) are shown.
3. Bracketed values indicate expected values when using the internal color bars (100/7.5/75/7.5).
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