LM401102-Q-x-301
PIN Diode Limiter
400 - 1000 MHz
Rev. V1
Features
Surface Mount Limiter in 8 mm x 5 mm x 2.5 mm
Package
Higher Average Power Handling than Plastic:
100 W CW Power
Lower Insertion Loss: 0.85 dB
High IIP3: 19 dBm
RoHS* Compliant
Schematic
LM401102-Q-A-301
RFIN
RFOUT
Description
The LM401102-Q-x-301 is a surface mount, passive
two-stage power limiter which can operate over the
frequency range of 400 to 100 MHz. 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. The LM401102-Q-A-301 comprises
“coarse stage” shunt PIN limiter diodes driven by a
Schottky diode detector stage and a “clean-up
stage” limiter PIN diode with an internal RF choke
DC return. The LM401102-Q-B-301 comprises a DC
block at its input, “coarse stage” shunt PIN limiter
diodes driven by a Schottky diode detector stage
and a “clean-up stage” limiter PIN diode with an
internal RF choke DC return. The LM401102-Q-C-
301 comprises a DC block at its input, shunt PIN
limiter diodes driven by a Schottky diode detector
stage, a “clean-up stage” limiter PIN diode with an
internal RF choke DC return and a DC block at its
output.
Schottky
Detector Stage
“Coarse”
Limiter Stage
“Clean-Up”
Limiter Stage
LM401102-Q-B-301
RFIN
RFOUT
Schottky
Detector Stage
“Coarse”
Limiter Stage
“Clean-Up”
Limiter Stage
LM401102-Q-C-301
RFIN
RFOUT
Schottky
Detector Stage
“Coarse”
Limiter Stage
“Clean-Up”
Limiter Stage
The very low thermal resistance (15ºC/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 TCASE = 85ºC. The
I-layer thickness of the output stage and the design
of the internal Schottky detector current source
combine to produce flat leakage of 18 dBm typical
and spike leakage energy of 0.5 ergs, typical. No
external control signals are required.
Ordering Information
Part Number1
Package
tube packaging
LM401102-Q-x-301-T
LM401102-Q-x-301-R
LM401102-Q-x-301-W
250 or 500 piece reel
waffle packaging
RF evaluation board with
heat sink
LM401102Q-x-301-E
1. Replace x with A, B or C.
A = No DC block capacitor
These devices are well suited for active receiver
protection applications.
B = DC block capacitor at input end
C = DC block capacitor at input and output end
* Restrictions on Hazardous Substances, European Union Directive 2011/65/EU.
1
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0015214
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