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參數(shù)資料
| 型號(hào)： | MC12013DR2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 諧振器 |
| 英文描述： | MC12 SERIES, PRESCALER, PDSO16 |
| 封裝： | PLASTIC, SO-16 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 135K |
| 代理商： | MC12013DR2 |
Enable = 0
Enable = 1
1110
0110
1101
1001
0001
0011
0111
0100
0101
1011
1010
1111
1100
1000
0000
0010
Figure 7. State Diagram
DIVIDE BY 10/11
NOTES:
The State of the Enable is important only for the positive
Clock Transition when the counter is in state 1100.
Enable = 1.
Enable = 1
Enable = 0
13
12
11
10
9
15
5
4
+
–
C
E5
E4
E3
E2
E1
Q4
2
3
7
MECL
to
MTTL
Translator
Figure 8. Divide By 10/11
APPLICATIONS INFORMATION
The primary application of this device is as a high–
speed variable modulus prescaler in the divide by N
section of a phase–locked loop synthesizer used as the
local oscillator of two–way radios.
Proper VHF termination techniques should be followed
when the clock is separated from the prescaler by any
appreciable distance.
In it’s basic form, this device will divide by 10/11. Division
by 10 occurs when any one or all of the five gate inputs E1
through E5 are high. Division by 11 occurs when all inputs
E1 through E5 are low. (Unconnected MTTL inputs are
normally high, unconnected MECL inputs are normally
low). With the addition of extra parts, many different
division configurations may be obtained (20/21, 40/41,
50/51, 100/101, etc.) A few of the many configurations are
shown below.
MC12013
12
MOTOROLA RF/IF DEVICE DATA
Q1
Q2
Q3
Q4
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Q1
Q2
Q3
Q4
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
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