BU2374FV

Multimedia ICs

5/7

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Electrical characteristics (Unless otherwise noted,Ta=25

Conditions

=2.0mA

VCO_OUT Output L voltage

input current (VCO_INHIBIT, SELECT)

1

VCO section

VCO current consumption (inhibit)

VCO frequency range

VCO control voltage

Bias Resistor range

∗ 1

∗ 1 Value of design

guarantee

(all guarantee range)

∗ 2 Frequency sersibility

∗ 3 When FSEL is H and output frequency is 1/4, culculate

Bias R

=2.0kΩ 37MHz to 54MHz

Bias R

=2.4kΩ 45MHz to 58MHz

Bias R

=3.0kΩ 53MHz to 60MHz

{ f1(VCOIN

=2.0V)−f2(VCOIN=1.0V)} / 1.0V

=−2.0mA

VCO_OUT Output H voltage

input impedance (VCO_IN)

Output 50MHz

VCO current consumption (normal operation)

∗ 2

Frequency sersibility

Output duty

Output Rise-time

Output Fall-time

Min.

−

−

−

37

0.5

2.0

3.0

−

−

−

45

−

−

Symbol

IIH, IIL

frange

VI(vco_in)

Rbias

Zi

β1

Duty

tr

tf

Unit

V

µA

µA

MHz

V

K

Ω

V

M

Ω

mA

MHz/V

%

nsec

nsec

−

−

−

−

−

−

−

10

12.5

23

50

2.5

2.5

Typ.

Parameter

+

Max.

0.3

1

60

−0.5

3.0

−

−

−

−

55

−

−

−