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參數(shù)資料
| 型號(hào)： | MC12079P |
| 廠商： | MOTOROLA INC |
| 元件分類： | 諧振器 |
| 英文描述： | MECL PLL COMPONENTS ±64/128/256 PRESCALER |
| 中文描述： | ECL SERIES, PRESCALER, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁(yè)數(shù)： | 2/4頁(yè) |
| 文件大小： | 73K |
| 代理商： | MC12079P |
MC12079
2
MOTOROLA RF/IF DEVICE DATA
ELECTRICAL CHARACTERISTICS
(VCC = 4.5 to 5.5 V; TA = –40 to 85
°
C, unless otherwise noted.)
Parameter
Symbol
Min
Typ
Max
Unit
Toggle Frequency (Sine Wave)
ft
0.25
3.4
2.8
GHz
Supply Current Output (Pin 2)
ICC
Vin
–
9.0
11.5
mA
Input Voltage Sensitivity
250–500 MHz
500–2800 MHz
400
100
–
–
1000
1000
mVpp
Divide Ratio Control Input High (SW)
VIH
VIL
Vout
VCC
Open
VCC
Open
VCC
Open
V
Divide Ratio Control Input Low (SW)
–
Output Voltage Swing
(CL = 12 pF; RL = 1.2 k
; IO = 2.7 mA)
1
(CL = 12 pF; RL = 2.2 k
; IO = 1.5 mA)
2
(CL = 12 pF; RL = 3.9 k
; IO = 0.85 mA)
3
1.0
1.6
–
Vpp
NOTES:
1.Divide ratio of
÷
64 at 2.8 GHz.
2.Divide ratio of
÷
128 at 2.8 GHz.
3.Divide ratio of
÷
256 at 2.8 GHz.
D
QB
C
Q
D
Q
C
QB
D
QB
C
Q
In
In
Out
Figure 1. Logic Diagram (MC12079)
D
Q
C
QB
D
QB
C
Q
D
QB
C
Q
D
QB
C
Q
D
QB
C
Q
SW2
SW1
Figure 2. AC Test Circuit
SINE WAVE GENERATOR
50
C1
C2
C3
VCC = 4.5 to 5.5 V
CL
RL
VCC
IN
IN
GND
OUT
EXTERNAL COMPONENTS
C1 = C2 = 1000 pF
C3 = 0.1
μ
F
CL = 12 pF (Including Scope and Jig Capacitance)
RL = 1.2 k
(for
÷
64 at 2.8 GHz)
SW2
SW1
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