參數(shù)資料
型號: KB2502
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: VIDEO AMP MERGED OSD PROCESSOR
中文描述: 視頻放大器合并OSD處理器
文件頁數(shù): 52/62頁
文件大?。?/td> 724K
代理商: KB2502
VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS
KB2502
51
Preliminary
PLL Control Bit
After configuring an external circuit using the recommended values, carry out programming using the
recommended values for frequency range and control bits given in the Table below.
Table 15. Recommend Values of PLL Control Bit
(Ref: 800
×
600, C1: 562, R1: 5.6K, R2: 27K, R3: 30M)
Locking Range
As you can see the figure below, it is 2.35V that measured voltage at pin-3 to optimize OSD quality. The proper
voltage range is 1.5 ~ 3.25V.
Register Set
PLL Control Bit
Freq. Range
CP1
CP0
FPLL
HF2
HF1
HF0
DOT1
DOT0
Hex
Below 40kHz
0
0
0
0
1
0
1
1
0B
40 - 50kHz
1
0
0
1
0
0
1
1
93
50 - 70kHz
1
0
0
1
0
1
1
1
97
Above 70kHz
1
0
0
1
1
1
1
1
9F
Figure 25. Locking Range
1.625V
fmax
f0
-2
¥e
1.625V
2
¥e
fL
fC
Locking Range
Ve (min)
Ve (max)
0.75V
1.5V
2.37V
3.25V
4V
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