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参数资料
| 型号： | S5D2510 |
| 厂商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | stand-alone OSD Processor |
| 中文描述： | 独立OSD处理器 |
| 文件页数： | 31/32页 |
| 文件大小： | 267K |
| 代理商： | S5D2510 |
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OSD PRESSOR FOR MONITOR (PRELIMINARY)
S5D2510
31
Separation of frequency region is in need of the multifarious consideration about PLL tuning factors as explained
before.
HF bits in "Frame Control Register 1" are not selecting from out of 8 (2
3
)steps uniformly, but selecting 3 types
shown in table delow as you can see "9.2 Separating region of frequency". In 'Type 1', HF2/HF1/HF0 bits are
setting each 0/0/0, 0/0/1, 0/1/0, 0/1/1, 1/0/0 (1/0/1), in 'Type 2' 0/0/0, 1/1/1, and in 'Type 3' 0/0/0, 0/0/1, 1/1/0.
HF2
0
0
0
0
1
1
1
1
HF1
0
0
1
1
0
0
1
1
HF0
0
1
0
1
0
1
0
1
PLL Dot Frequency Range
19.2 MHz < Fdot < 70 MHz
70 MHz
≤
Fdot < 90 MHz
90 MHz
≤
Fdot < 128 MHz
128 MHz
≤
Fdot < 140 MHz
140 MHz
≤
Fdot < 160 MHz
90 MHz
≤
Fdot < 160 MHz
70 MHz
≤
Fdot < 160 MHz
After fixing time constants of the external circuit and PLL control bits except HF bits, if HF bits are stepped up,
the voltage measured at Pin #2 drops. On the contrary, if HF bits are stepped down, the voltage rises. The
voltage measured at Pin #2 don't change by changing CP bits.
As changing the external register in Pin #3, the range is shiftted without changing slope in the figures shown
before about 'PLL frequency region'. In other words, if the value of the external register in Pin #3 rises, the
voltage measured at Pin #2 (VCO_IN) is shiftted upward without changing slope shown in figures before.
If the external register in Pin #4, the slope is changed without shifting shown in figures before. That is, if the value
of the external register in Pin #4 rises, the slope shown in figures before rises.
After initial setting refferred to the table below in the side view of S/W and the figure "S5D2510 Application
Circuit" in the side view of H/W.
Table 8: Recommand setting of PLL control bits
Range
CP2
0
1
1
1
1
CP1
1
0
1
1
1
CP0
1
1
1
1
1
HF2
0
0
0
0
0
HF1
0
0
0
1
1
HF0
0
0
1
0
1
DOT1 DOT0
1
1
1
1
1
Hexa
63h
A3h
E7h
EBh
EFh
V (Pin #2)
2.18V
2.68V
2.68V
3.16V
1.34V
2.64V
1.42V
3.10V
1.92V
2.44V
30kHz
40kHz
40kHz
50kHz
50kHz
70kHz
70kHz
110kHz
110kHz
120kHz
1
1
1
1
1
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