參數(shù)資料
型號(hào)： MB15F83UL
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
文件頁數(shù)： 11/29頁
文件大?。?/td> 168K
代理商： MB15F83UL
MB15F83UL
11
IF synthesizer Data Setting (Integer)
The divide ratio can be calculated using the following equation :
f
VCOIF
=
[ (P
×
N)
+
A]
×
fosc
÷
R
(A < N)
Binary 14-bit Programmable Reference Counter Data Setting (R
C1
to R
C14
)
Divide ratio
(R)
3
0
0
0
0
4
0
0
0
0
16383
1
1
1
1
Note : Divide ratio less than 3 is prohibited.
Binary 11-bit Programmable Counter Data Setting (N
C1
to N
C11
)
Divide ratio (N) N
C11
N
C10
N
C9
3
0
0
0
4
0
0
0
2047
1
1
1
Note : Divide ratio less than 3 is prohibited.
Binary 4-bit Swallow Counter Data Setting (A
C1
to A
C4
)
Divide ratio (A)
A
C4
A
C3
Note : A < N
Prescaler Data Setting (SW
C
)
SW
C
R
C14
R
C13
R
C12
R
C11
R
C10
R
C9
R
C8
R
C7
R
C6
R
C5
R
C4
R
C3
R
C2
R
C1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
1
1
1
0
1
1
0
1
N
C8
0
0
1
N
C7
0
0
1
N
C6
0
0
1
N
C5
0
0
1
N
C4
0
0
1
N
C3
0
1
1
N
C2
1
0
1
N
C1
1
0
1
A
C2
A
C1
0
0
0
0
0
1
0
0
0
1
2
15
0
1
0
1
1
1
0
1
Prescaler divide ratio
1
8/9
0
16/17
f
VCOIF
P
N
A
fosc
R
: Output frequency of external voltage controlled oscillator (VCO)
: Preset divide ratio of modulus prescaler (8 or 16)
: Preset divide ratio of binary 11 bit programmable counter (3 to 2047)
: Preset divide ratio of binary 4 bit swallow counter (0 to 15)
: Output frequency of the reference frequency oscillator
: Preset divide ratio of binary 14 bit reference counter (3 to 16383)
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