LM2933‐Q‐B‐301
PIN Diode Limiter
2.9 - 3.3 GHz
Rev. V1
Features
Surface Mount Limiter in 8 L x 5 W x 2.5 H mm
Package
Incorporates PIN Limiter Diodes, DC Blocks,
Schottky Diode & DC Return
Higher Peak Power Handling than Plastic-
Packaged Limiters (1.6 KW Peak)
Higher Average Power Handling than Plastic-
Packaged Limiters (100 W CW)
Very Low Insertion Loss (0.6 dB)
Low Flat Leakage Power (23 dBm)
RoHS* Compliant
Pin Out
Description
The LM2933-Q-B-301 is a surface mount silicon PIN
diode, passive two stage power limiter which can
operate over the frequency range of 2.9 to 3.3 GHz.
This device 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 & 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 2.9 to 3.3 GHz.
Limiter Schematic
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 47 dBm CW and RF
peak incident power levels up to 62 dBm (70 µs
pulse width, 3% duty cycle). The I layer thickness of
the output stage and the design of the internal
Schottky detector current source combine to
produce flat leakage of 23 dBm typical and spike
leakage energy of 0.25 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.
This PIN diode limiter is ideally suited for receiver
and LNA protection applications.
Ordering Information
Part Number
Package
LM2933‐Q‐B‐301-T
LM2933‐Q‐B‐301-R
LM2933‐Q‐B‐301-W
LM2933‐Q‐B‐301-E
tube packaging
250 or 500 piece reel
waffle packaging
RF evaluation board
* 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-0012246