參數(shù)資料
型號: ADF4208BRUZ-RL
廠商: Analog Devices Inc
文件頁數(shù): 7/24頁
文件大?。?/td> 0K
描述: IC PLL FREQ SYNTHESIZER 20TSSOP
標準包裝: 2,500
類型: 時鐘/頻率合成器,RF
PLL:
輸入: CMOS,TTL
輸出: 時鐘
電路數(shù): 1
比率 - 輸入:輸出: 3:1
差分 - 輸入:輸出: 是/無
頻率 - 最大: 2GHz
除法器/乘法器: 無/無
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 20-TSSOP
包裝: 帶卷 (TR)
ADF4206/ADF4208
Rev. A | Page 15 of 24
O
I
T
A
R
E
D
I
V
I
D
R
E
T
N
U
O
C
B
1
B
2
B
3
B
9
B
0
1
B
1
B
0
..........
0
NOT ALLOWED
0
..........
0
1
NOT ALLOWED
0
..........
0
1
0
2
0
..........
0
1
3
.
..........
.
..........
.
..........
.
1
..........
1
0
2044
1
..........
1
0
1
2045
1
..........
1
0
2046
1
..........
1
2047
A COUNTER
A6
A5
A4
A3
A2
A1
DIVIDE RATIO
XX0
0
XX0
0
1
XX0
0
1
0
2
XX0
0
1
3
...
XX1
1
0
14
XX1
1
15
N = BP + A, P IS PRESCALER VALUE SET BY P6. B MUST BE GREATER
THAN OR EQUAL TO A. TO ENSURE CONTINUOUSLY ADJACENT VALUES
OF N × FREF, NMIN IS (P2 – P).
P7
RF2 SECTION
0
NORMAL OPERATION
1
POWER-DOWN
DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
C2 (0)
C1 (1)
A1
A2
A3
A4
A5
A6
B11
P6
CONTROL
BITS
11-BIT B COUNTER
DB21
RF2 AB COUNTER LATCH
RF
2
P
O
W
E
R
-
DOWN
RF
2
PR
E
SC
A
L
ER
P7
B10
B9
B8
B7B6
B5
B4
B3B2
B1
6-BIT A COUNTER
P6
RF2 PRESCALER
0
64/65
1
32/33
01
03
6-
0
32
Figure 29. RF2 AB Counter Latch Map
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