SMP1322 View Datasheet(PDF) - Skyworks Solutions
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SMP1322 Datasheet PDF : 6 Pages
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DATA SHEET • SMP1322 SERIES
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 handheld wireless suits. In the specifically configured
SOT-143 package, the PIN diodes are oriented to enable connec-
tion as a λ/4 switch with no external crossover connections.
SMP1322-016 in λ/4 T/R Switch
Transmitter
GND
4
3
Bias
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.
2
4
Antenna
1
λ/4
2
Receiver
λ/4 T/R Switch
Bias
Antenna
Transmitter
λ/4
Receiver
1
3
Lead Configuration
Schematic
Switch Connection
T/R Switch Design
DC Control
Antenna
Transmitter
λ /4
SMP1322-011
Receiver
SMP1322-017
Recommended Solder Reflow Profiles
Refer to the “Recommended Solder Reflow Profile”
Application Note.
Tape and Reel Information
Refer to the “Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation” Application Note.
25
IF = 10 mA
20
15
10
5
Zero Bias
0
0.5
1
2
3
4
Frequency (GHz)
SMP1322-017 Typical SPST
Switch Performance
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
February 23, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200049 Rev. F
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