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參數(shù)資料
| 型號(hào)： | MB15F88UL |
| 廠商： | Fujitsu Limited |
| 英文描述： | Fractional-N PLL Frequency Synthesizer |
| 中文描述： | 分?jǐn)?shù)N PLL頻率合成器 |
| 文件頁(yè)數(shù)： | 12/29頁(yè) |
| 文件大?。?/td> | 175K |
| 代理商： | MB15F88UL |
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MB15F88UL
12
Phase Comparator Phase Switching Data Setting
Notes :
Z
=
High-Z
Depending upon the VCO and LPF polarity, FC bit should be set.
Charge pump current select Data Setting (CS
C
)
CS
C
Common Setting
LD/fout Output Select Data Setting
LD/fout
FC Bit Setting
When designing a synthesizer, the FC bit setting depends on the VCO and LPF characteristics
FC
C
=
“1”
D
O
FC
C
=
“0”
D
O
fr
>
fp
fr
<
fp
fr
=
fp
H
L
L
H
Z
Z
VCO polarity
1
2
Do current
±
6.0 mA
±
1.5 mA
1
0
LDS
T1
0
T2
0
LD output
0
fout
output
fr
TX
1
fr
RX
1
1
0
fp
TX
1
0
1
fp
RX
1
1
1
(1)
(2)
LPF Output Voltage
Max.
VCO Output
Frequency
High
When the LPF and VCO characteristics are similar to (1) ,
FC : “H”.
When the VCO characteristics are similar to (2) ,
FC : “L”.
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| MB15F88ULPFT | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Fractional-N PLL Frequency Synthesizer |
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