ALPHA SMV1269-074

Hyperabrupt Junction Tuning Varactor
SMV1269-074
Features
■ High Capacitance Ratio
■ Ultra Small Size SC-70 Package
■ Designed for High Volume, Low Cost
Battery Applications
■ Available in Tape and Reel Packaging
Description
The SMV1269-074 is a dual silicon hyperabrupt junction
varactor diode in a common cathode configuration
specifically designed for battery operation.The specified
high capacitance ratio and low RS of this varactor make it
appropriate for low noise VCOs used at frequencies in
wireless systems to 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.
Reverse Current (IR)
VR = 8 V
Capacitance (CT)
CT @ 0.5 V, VR = 0.5 V, F = 1 MHz
19.2
20.5
Capacitance (CT)
CT @ 2.5 V, VR = 2.5 V, F = 1 MHz
6.5
7.3
Capacitance Ratio (CTR)
Series Resistance (RS)
CT (0.5 V)/CT (2.5 V)
2.5
2.8
Breakdown Voltage (VBR)
IR = 10 µA
VR = 1 V, F = 900 MHz
0.6
Max.
Unit
20.0
nA
21.8
pF
8.1
pF
0.8
Ω
10.0
V
Common Cathode Configuration
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 1/01A
1
Hyperabrupt Junction Tuning Varactor
SMV1269-074
Typical Performance Data
Capacitance vs. Voltage
30
VR (V)
29.0
0.2
25.3
0.4
22.4
0.6
20.1
0.8
18.0
1.0
16.2
1.2
14.6
1.4
13.2
1.6
11.9
1.8
10.7
2.0
9.6
2.2
8.7
2.4
7.8
2.6
7.0
5
2.8
6.3
4
3.0
5.7
3.2
5.2
3.4
4.8
3.6
4.4
3.8
4.1
4.0
3.9
-1
4.2
3.7
-2
4.4
3.5
-3
4.6
3.3
-4
-40
4.8
3.2
5.0
3.1
Capacitance (pF)
25
20
15
10
5
0
0
1
2
3
4
5
Voltage (V)
Alpha Varactor (SMV1269-074)
Percent of Variation (%)
CT (pF)
0
VVAR = 1 V
3
VVAR = 2.5 V
2
1
VVAR = 4 V
0
-20
0
20
40
60
80
Temperature (˚C)
Relative Capacitance
Change vs. Temperature
SPICE Model
PORT
P_anode
port = 1
IND
LS
L = LS
SC-70
0.071 (1.80 mm) MIN.
0.087 (2.20 mm) MAX.
0.010 (0.25 mm) MIN.
0.016 (0.40 mm) MAX.
RES
RS
R = RS
3
0.071 (1.80 mm) MIN.
0.094 (2.40 mm) MAX.
0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX.
1
2
0.014 (0.35 mm) REF.
0.026 (0.65 mm) REF.
CAP
CP
C = CP
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
0.051 (1.30 mm) REF.
0.004 (0.10 mm) MIN.
0.007 (0.18 mm) MAX.
0.031 (0.80 mm) MIN.
0.039 (1.00 mm) MAX.
PORT
P_Cathode
port = 2
0.004 (0.10 mm) MIN.
0.012 (0.30 mm) MAX.
2
0.000 (0.00 mm) MIN.
0.004 (0.10 mm) MAX.
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
CJO
(pF)
VJ
(V)
M
CP
(pF)
RS
Ω)
(Ω
LS
(nH)
SMV1269-074
28.5
6.3
4.2
0.5
0.6
1.4
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 1/01A