ML12079
LANSDALE Semiconductor, Inc.
ELECTRICAL CHARACTERISTICS
(VCC = 4.5 to 5.5 V; TA = –40 to 85°C, unless otherwise noted.)
Parameter
Toggle Frequency (Sine Wave)
Supply Current Output (Pin 2)
Input Voltage Sensitivity
Divide Ratio Control Input High (SW)
Divide Ratio Control Input Low (SW)
Output Voltage Swing
(CL = 12 pF; RL = 1.2 kΩ; IO = 2.7 mA)
1
(CL = 12 pF; RL = 2.2 kΩ; IO = 1.5 mA)
2
(CL = 12 pF; RL = 3.9 kΩ; IO = 0.85 mA)
3
250–500 MHz
500–2800 MHz
Symbol
ft
ICC
Vin
VIH
VIL
Vout
Min
0.25
–
400
100
VCC
Open
1.0
Typ
3.4
9.0
–
–
VCC
Open
1.6
Max
2.8
11.5
1000
1000
VCC
Open
–
Unit
GHz
mA
mVpp
V
–
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.
Figure 1. Logic Diagram (ML12079)
D
In
In
C
QB
Q
D
C
Q
QB
D
C
QB
Q
D
C
Q
QB
D
C
QB
Q
D
C
SW2
SW1
QB
Q
D
C
QB
Q
D
C
QB
Q
Out
Figure 2. AC Test Circuit
VCC = 4.5 to 5.5 V
C3
SINE WAVE GENERATOR
C1
50
Ω
SW2
C2
IN
GND
OUT
CL
RL
EXTERNAL COMPONENTS
C1 = C2 = 1000 pF
C3 = 0.1
µF
CL = 12 pF (Including Scope and Jig Capacitance)
RL = 1.2 kΩ (for
÷64
at 2.8 GHz)
VCC
IN
SW1
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