SMP1322-001 ALPHA [Alpha Industries], SMP1322-001 Datasheet - Page 3

• Manufacturer Part Number: SMP1322-001
• Description: Low Resistance Plastic Packaged PIN Diodes
• Manufacturer: ALPHA [Alpha Industries]

Low Resistance Plastic Packaged PIN Diodes
SMP1322-016 SOT-143 T/R Switch
The SMP1322-016 is a low cost PIN diode unconnected
pair specifically designed for low current drain antenna
T/R switches in hand held wireless suits. In the
specifically configured SOT-143 package, the PIN diodes
are oriented to enable connection as a /4 switch with no
external crossover connections.
SMP1322-016 in /4 T/R Switch
/4 T/R Switch
Transmitter
Transmitter
Bias
Alpha Industries, Inc. [781] 935-5150
Bias
Antenna
4
Antenna
1
/4
/4
3
2
GND
Receiver
Specifications subject to change without notice. 1/01A
Receiver
Fax [617] 824-4579
SMP1322-017 SOT-143 Low Inductance
PIN Diode
The SMP1322-017 utilizes the SMP1322 PIN diode chip
in a customized SOT-143 plastic package designed for
high isolation performance in a shunt connected switch.
Its effective inductance, based on the 3 GHz isolation, is
less than 0.2 nH. This diode is designed to work effectively
as a shunt element in SPDT switches, covering the
wireless frequencies from 900 MHz to beyond 2 GHz.
Excellent performance is achievable when used in a
quarter-wave T/R switch with the SMP1322-001 (SOT-23)
or SMP1322-011 (SOD-323) PIN diode as the series
connected diode.
T/R Switch Design
Email [e-mail]
4
Configuration
1
Transmitter
Lead
DC Control
25
20
15
10
5
0
0.5
SMP1322-017 Typical SPST
3
2
SMP1322-011
Switch Performance
1
Frequency (GHz)
Schematic
2
1
I
F
Zero Bias
www.alphaind.com
= 10 mA
Antenna
2
/4
4
3
SMP1322 Series
SMP1322-017
3
4
1
Receiver
Connection
Switch
4
3
2
3