Variable Capacitance Diode for VCO
HVC379B
Variable Capacitance Diode for VCO
ADE-208-817 (Z) Rev 0 Aug. 1999 Features
• High capacitance ratio. (n =1.80m...
Description
HVC379B
Variable Capacitance Diode for VCO
ADE-208-817 (Z) Rev 0 Aug. 1999 Features
High capacitance ratio. (n =1.80min) Low series resistance. (rs=1.0Ωmax) Ultra small F lat P ackage (UFP) is suitable for surface mount design.
Ordering Information
Type No. HVC379B Laser Mark F1 Package Code UFP
Outline
Cathode mark Mark 1
F1
2 1. Cathode 2. Anode
HVC379B
Absolute Maximum Ratings (Ta = 25°C)
Item Reverse voltage Junction temperature Storage temperature Symbol VR Tj Tstg Value 10 125 –55 to +125 Unit V °C °C
Electrical Characteristics (Ta = 25°C)
Item Reverse current Symbol I R1 I R2 Capacitance C0.5 C2.5 Capacitance ratio Series resistance n rS Min — — 2.90 1.25 1.80 — Typ — — — — — — Max 10 100 3.20 1.53 — 1.0 — Ω pF Unit nA Test Condition VR = 10V VR = 10V, Ta= 60°C VR = 0.5V, f = 1MHz VR = 2.5V, f = 1MHz C0.5/C2.5 VR = 1V, f = 470MHz
2
HVC379B
Main Characteristic
10
-10
6 f=1MHz 5
Reverse current I R (A)
10
-11
(pF)
10
-12
4
Capacitance C
3
2
10
-13
1
-14
10
0
5 10 Reverse voltage V R (V)
15
0 0.1
1.0 Reverse voltage V R (V)
10
Fig.1 Reverse current Vs. Reverse voltage
Fig.2 Capacitance Vs. Reverse voltage
1.0 f=470MHz 0.8
0 -0.1
Series resistance r s (Ω)
0.6
LF =∆(LogC)/∆(LogVR )
1.0 Reverse voltage V R (V) 10
-0.2
0.5
-0.3
0.4
-0.4
0.2
-0.5
0 10-1
-0.6
10-1
1.0 Reverse voltage V R (V)
2.0
Fig.3 Series resistance Vs. Reverse voltage
Fig.4 Linearity factor Vs. Reverse voltage
3
HVC379B
Package Dimensions
Unit : mm
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