ALPHA SMV1263-079

Hyperabrupt Junction Tuning Varactor
SMV1263-079
Features
■ High Capacitance Ratio at Low
Reverse Voltage
■ Ultra Small SC-79 Package
■ Designed for High Volume, Low Cost
Battery Applications
■ Available in Tape and Reel Packaging
Description
The SMV1263-079 is a silicon hyperabrupt junction varactor
diode specifically designed for 3 V platforms.The specified
high capacitance ratio and low RS of this varactor make it
attractive for low phase noise VCOs in wireless systems up
to and beyond 2.5 GHz. Applications include low noise and
wideband UHF and VHF VCO for GSM, PCS, CDMA and
analog phones.
Absolute Maximum Ratings
Characteristic
Value
Forward Current (IF)
20 mA
Power Dissipation (PD)
250 mW
Storage Temperature (TST)
-55°C to +150°C
Operating Temperature (TOP)
-55°C to +125°C
Electrical Specifications at 25°C
Parameter
Condition
Min.
Typ.
Max.
Unit
20.0
nA
6.7
7.2
pF
2.6
2.9
pF
1.2
Ω
Reverse Current (IR)
VR = 15 V
Capacitance (CT)
CT @ 0.5 V, VR = 0.5 V, F = 1 MHz
6.2
Capacitance (CT)
CT @ 2.5 V, VR = 2.5 V, F = 1 MHz
2.3
Capacitance Ratio (CTR)
CT (0.5 V)/CT (2.5 V)
2.3
2.5
Series Resistance (RS)
VR = 1 V, F = 900 MHz
Breakdown Voltage (VBR)
IR = 10 µA
20.0
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 1/01A
V
1
Hyperabrupt Junction Tuning Varactor
SMV1263-079
Typical Performance Data
Capacitance vs. Voltage
Capacitance (pF)
9.00
6.00
3.00
0
0
1
2
3
4
5
CT (pF)
0.00
8.87
0.25
7.68
0.50
6.68
0.75
5.83
1.00
5.11
1.25
4.50
1.50
3.99
1.75
3.54
2.00
3.17
2.25
2.84
Varactor Voltage (V)
2.50
2.57
Capacitance vs. Voltage
2.75
2.33
3.00
2.12
3.25
1.94
3.50
1.79
3.75
1.65
4.00
1.54
4.25
1.44
4.50
1.35
4.75
1.27
5.00
1.20
5
Percentage of Variation (%)
VR (V)
4
VVAR = 1 V
3
VVAR = 2.5 V
2
1
0
VVAR = 4 V
-1
-2
-3
-4
-40
-20
0
20
40
60
80
SPICE Model
PORT
P_anode
port = 1
Temperature (˚C)
Relative Capacitance
Change vs. Temperature
IND
LS
L = LS
SC-79
RES
RS
R = RS
CATHODE 0.006 (0.15 mm) MIN.
INDICATOR
0.010
(0.25 mm) MIN.
0.014
(0.35 mm) MAX.
1
2
0.028
(0.70 mm) MIN.
0.035
(0.90 mm) MAX.
CAP
CP
C = CP
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
0.060 (1.50 mm) MIN.
0.067 (1.70 mm) MAX.
0.043 (1.10 mm) MIN.
0.051 (1.30 mm) MAX.
0.020
(0.50 mm) MIN.
0.028
(0.70 mm) MAX.
10˚ MAX.
0.003
(0.07 mm) MIN.
0.008
(0.20 mm) MAX.
10˚ MAX.
2
PORT
P_Cathode
port = 2
DIODEM
Diode_Model
IS = 1.00e-14
RS = 0
N=1
TT = 0
CJO = CJO
M=M
VJ
EG = 1.11
XTI = 3
KF =0
AF =1
FC = 0.5
BV = 0
IBV = 1e-3
ISR = 0
NR = 2
IKF = 0
NBV = 1
IBVL = 0
NBVL = 1
TBV1 = 0
TNOM = 27
FFE = 1
Part
Number
CJ0
(pF)
VJ
(V)
M
CP
(pF)
RS
Ω)
(Ω
LS
(nH)
SMV1263-079
8.2
15
9.5
0.67
1.2
1.7
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 1/01A