BU2373FV_11 Datasheet, PDF (7/19 Pages) Rohm – High Performance VCOs for Image Sampling

BU2373FV,BU2374FV
Technical Note
●Reference data
(BU2374FV－Power Voltage Fluctuation Data)
100
100
80
80
60
60
40
40
From top:VDD=3.45V
From top:VDD=3.45V
VDD=3.30V
VDD=3.30V
20
VDD=3.15V
20
VDD=3.15V
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Control Voltage：VI[V]
Fig.28 Control Voltage  Output Frequency
(VDD=3.3V,Rbias=2.0KΩ,Ta=25℃)
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Control Voltage：VI[V]
Fig.29 Control Voltage  Output Frequency
(VDD=3.3V,Rbias=2.4 KΩ,Ta=25℃)
100
80
60
40
From top:VDD=3.45V
VDD=3.30V
20
VDD=3.15V
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Control Voltage：VI[V]
Fig.30Control Voltage  Output Frequency
(VDD=3.3V,Rbias=3.0KΩ,Ta=25℃)
●Reference data
(BU2374FV－Temperature Fluctuation Data)
100
100
80
80
60
60
40
From top:T=75℃
20
T=25℃
T=-20℃
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Control Voltage：VI[V]
Fig.31 Control Voltage  Output Frequency
(VDD=3.3V,Rbias=2.0KΩ)
40
From top:T=75℃
20
T=25℃
T=-20℃
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Control Voltage：VI[V]
Fig.32 Control Voltage  Output Frequency
(VDD=3.3V,Rbias=2.4KΩ)
100
80
60
40
From top:T=75℃
20
T=25℃
T=-20℃
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Control Voltage：VI[V]
Fig.33 Control Voltage  Output Frequency
(VDD=3.3V,Rbias=3.0KΩ)
●Reference data
(BU2374FV－Recommended Oscillation Range, Frequency - Frequency Sensitivity)
100
25
80
Recommended Oscillation Range”H”
60
20
Recommended Oscillation Range”H”
15
40
Recommended Oscillation Range”L”
20
10
Recommended Oscillation Range”L”
5
0
2.0
2.2
2.4
2.6
2.8
3.0
Resistor:Rbias[KO]
Fig.34 Bias Resistance
– Recommended Oscillation Range
(VDD=3.3V, Select=”L”)
0
2.0
2.2
2.4
2.6
2.8
3.0
Resistor:Rbias[KO]
Fig.35 Bias Resistance
– Recommended Oscillation Range
(VDD=3.3V, Select=”H”)
50
45
40
35
30
25
20
15
10
5
0
35
40
45
50
55
60
Frequency: f[MHz]
Fig.36 Output Frequency
- Frequency Sensitivity
(VDD=3.3V, Select=”L”)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
7/18
2011.08 - Rev.B