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參數(shù)資料
| 型號： | CS2200P-DZZR |
| 廠商： | CIRRUS LOGIC INC |
| 元件分類： | PLL合成/DDS/VCOs |
| 中文描述： | PHASE LOCKED LOOP, 56 MHz, PDSO10 |
| 封裝： | 3 MM, LEAD FREE, MO-187, MSOP-10 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大小： | 177K |
| 代理商： | CS2200P-DZZR |
CS2200-OTP
DS842F2
17
6. PARAMETER DESCRIPTIONS
As mentioned in Section 5.1 on page 9, there are two different kinds of parameter configuration sets, Modal and
Global. These configuration sets, shown in Figure 10, can be programmed in the field using the CDK2000 or pre-
programmed at the factory. Please see “Programming Information” on page 21 for more details.
Figure 10. Parameter Configuration Sets
6.1
Modal Configuration Sets
There are four instances of each of these configuration parameters. Selection between the four stored sets
is made using the M[1:0] pins.
6.1.1
R-Mod Selection (RModSel[1:0])
Selects the R-Mod value, which is used as a factor in determining the PLL’s Fractional N.
Note:
This parameter does not take affect unless M2 pin is high and the M2Config[2:0] global param-
eter is set to ‘011’.
RModSel[1:0]
R-Mod Selection
00
Right-shift R-value by 1 (÷ 2).
01
Right-shift R-value by 2 (÷ 4).
10
Right-shift R-value by 3 (÷ 8).
11
Right-shift R-value by 4 (÷ 16).
Application:
“Ratio Modifier (R-Mod)” on page 11
M[1:0] pins
Modal Configuration Set #0
RModSel[1:0]
AuxOutSrc[1:0]
Modal Configuration Set #1
Ratio 1
RModSel[1:0]
AuxOutSrc[1:0]
Modal Configuration Set #2
Ratio 2
RModSel[1:0]
AuxOutSrc[1:0]
Modal Configuration Set #3
Ratio 3
RModSel[1:0]
AuxOutSrc[1:0]
00
01
10
11
Global Configuration Set
RefClkDiv[1:0]
ClkOutUnl
AuxLockCfg
M2Config[2:0]
Ratio 0
Di
g
ita
l/P
LL
Co
re
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