Hyperabrupt Tuning Varactors
SMV1232–SMV1237
Features
■ High Capacitance Ratio,
C
/C = 1.8, C /C = 3.1
1 V 3 V
1 V 6 V
■ Low Series Resistance for Low
Phase Noise
■ Multiple Packages SOT-23, SOD-323,
SC-70 and SC-79
■ Designed for High Volume Commercial
Applications
■ Full Characterization with SPICE Models
Absolute Maximum Ratings
Description
Characteristic
Value
15 V
The SMV1232–SMV1237 series of silicon hyperabrupt
junction varactor diodes are designed for use in VCOs with
low tuning voltage operation. The low resistance of these
varactors makes them appropriate for high Q resonators
in wireless system VCOs to frequencies beyond 2.5 GHz.
The SMV1232–SMV1237 series is fully characterized for
capacitance and resistance over temperature. SPICE model
is provided.
Reverse Voltage (V )
R
Forward Current (I )
20 mA
F
Power Dissipation (P )
250 mW
D
Storage Temperature (T
)
-55°C to +150°C
-55°C to +125°C
Class 1B
ST
Operating Temperature (T
ESD Human Body Model
)
OP
Single
Single
Single
Common Anode
Common Cathode
SOT-23
Common Anode
Common Cathode
SC-70
SC-79
SOD-323
SOT-23
SOT-23
SC-70
♦ SMV1232-079
♦ SMV1233-079
♦ SMV1234-079
♦ SMV1235-079
♦ SMV1236-079
♦ SMV1232-011
♦ SMV1233-011
♦ SMV1234-011
♦ SMV1235-011
♦ SMV1236-011
♦ SMV1232-074
♦ SMV1233-074
♦ SMV1234-074
♦ SMV1235-074
♦ SMV1236-074
♦ SMV1233-001
♦ SMV1234-001
♦ SMV1235-001
♦ SMV1236-001
♦ SMV1237-001
♦ SMV1233-003
♦ SMV1234-003
♦ SMV1233-004
♦ SMV1234-004
♦ SMV1235-004
♦ SMV1236-004
♦ SMV1237-004
♦ SMV1233-073
♦ SMV1234-073
L
S
= 0.7 nH
L
S
= 1.5 nH
L
S
= 1.5 nH
L
S
= 1.5 nH
L
S
= 1.5 nH
L
S
= 1.4 nH
L = 1.4 nH
S
♦ Available through distribution.
For other packages or configurations, please contact the factory.
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
1
Specifications subject to change without notice. 6/99A