BU2373FV_11 Datasheet, PDF (3/19 Pages) Rohm – High Performance VCOs for Image Sampling

BU2373FV,BU2374FV
Technical Note
◎BU2374FV(Ta=25℃, VDD=3.3V, unless otherwise specified.)
Parameter
Limits
Symbol
Min.
Typ.
(VCO)
VCO_IN input impedance
Zi
-
10
Consumption current
(while in normal mode)
Consumption current
(while in standby mode)
Idd(VCO)
-
12.5
Idd_st(VCO)
-
-
Control voltage
VI
0.5
-
Max.
-
-
1
VDD-0.5
Unit
Conditions
MΩ
mA With 50 MHz output
µA
VCO_INHIBIT=”H”,
VCOIN=”L”
V
Oscillation range
frange
37
-
60
MHz
Bias resistor range
Rbias
2.0
-
3.0
KΩ ^*1
Frequency sensitivity
β1
-
23
-
MHz/V ^*2
Output duty
Duty
45
50
55
%
Measured at a voltage
of 1/2 of VDD
(PFD)
Consumption current
(while in normal mode)
Idd(PFD)
-
0.5
-
mA
When 1 MHz is input to
the FIN_A and B
Consumption current
(while in standby mode)
Idd_st(PFD)
-
-
1
µA
PFD_INHIBIT=”H”,
FIN_A, B=”L”
*1 Design guaranteed figures 37 MHz to 54 MHz when Rbias =2 .0 kΩ
53 MHz to 60 MHz when Rbias = 3.0 kΩ
*2 Frequency sensitivity
{ f1 (VCOIN = 2.0V)  f2 (VCOIN = 1.0 V) } / 1.0V
*3 If the SELECT pin is set to “H” and the output frequency is reduced to 1/4, the frequency range and the frequency sensitivity will be all reduced to 1/4.
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3/18
2011.08 - Rev.B