PIN Diode Limiter
1 - 2 GHz
LM102202-Q-x-301
Rev. V2
Features
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•
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Surface Mount Limiter in 8 x 5 x 2.5 mm Package
Incorporates PIN Limiter & Schottky Diodes
DC Blocks & DC Return
Higher Average Power Handling than Plastic:
100 W CW Power
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Higher Average Peak Handling than Plastic:
1000 W CW Power
Schematic
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Lower Insertion Loss: 0.35 dB
Lower Flat Leakage Power: 17 dB
Ultra-thin AU Termination Plating to Combat
Embrittlement
LM102202-Q-A-301
RFIN
RFOUT
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RoHS* Compliant
Applications
Schottky
Detector Stage
“Coarse”
Limiter Stage
“Clean-Up”
Limiter Stage
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•
Commercial, Industrial, & Military Environments
Octave Band Radar
LM102202-Q-B-301
RFIN
RFOUT
Description
The LM102202-Q-x-301 silicon PIN diode limiter is a
passive two-stage power limiter which can operate
over the frequency range of 1 to 2 GHz. It is
manufactured using a proven hybrid manufacturing
process incorporating PIN diodes and passive
devices integrated onto a ceramic substrate. This
low profile, compact, surface mount component
offers outstanding small and large signal
performance. This product is designed for optimal
small signal insertion loss for very low receiver noise
figure and excellent large-input-signal flat leakage
power for effective receiver protection from 1 to 2
GHz.
Schottky
Detector Stage
“Coarse”
Limiter Stage
“Clean-Up”
Limiter Stage
LM102202-Q-C-301
RFIN
RFOUT
Schottky
Detector Stage
“Coarse”
Limiter Stage
“Clean-Up”
Limiter Stage
The very low thermal resistance (20ºC/W, junction to
bottom surface of package) of the PIN diodes in this
device and the presence of a Schottky detector bias
current source enables it to reliably handle RF
incident power levels up to 50 dBm CW and RF
peak incident power levels up to 60 dBm
(25 µs pulse width, 5% duty cycle) at T = 85ºC.
The I-layer thickness of the output stage and
detector current source combine to produce flat
leakage of 17 dBm typical and spike leakage energy
of 0.5 ergs, typical. No external control signals are
required. This limiter module includes internal
DC blocking capacitors in the RF signal path, as
well as an internal DC return path.
Ordering Information
LM102202-Q-x-301-T
LM102202-Q-x-301-R
LM102202-Q-x-301-W
tube packaging
250 or 500 piece reel
waffle packaging
RF evaluation board with
heat sink
LM102202Q-x-301-E
1. Replace x with A, B or C.
A = No DC block capacitor
B = DC block capacitor at input end
C = DC block capacitor at input and output end
* Restrictions on Hazardous Substances, compliant to current RoHS EU directive.
1
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DC-0014911