2-20 GHz MMIC Limiter
Filtronic
Solid State
LML221
Features
•
•
•
•
•
•
•
•
•
•
0.5 dB Insertion Loss
+15 dBm Leakage Power
4-6 Watts Burn-Out Power Typical
-15 dB Input/Output Return Loss Typical
2-20GHz Frequency Bandwidth
40 nS Pulse Recovery Time
DC Decoupled RF Input and Output
Chip Size : 1.62 mm x 0.74 mm (0.064” x 0.029”)
µ
Chip Thickness : 100 m
2
µ
Pad Dimension : 100 m
Description
The Filtronic LML 221 Limiter is a MIN (Mott) diode limiter featuring low insertion loss, excellent pulse recovery time, and low spike leakage
energy. The diode structure features a very stable Pt / Ti / Au Schottky contact, with low resistance ohmic AuGe / Ni / Au ohmic contacts.
The MIN structure allows for a large diode area for improved maximum burn-out power levels while retaining wide-bandwidth performance.
The MIN diodes do not generate minority carriers, thereby offering superior pulse recovery and spike leakage performance as compared to
standard PIN limiters.
Electrical Specifications
A
at T =25
°C
Limits
Typ.
Symbol
BW
S21
PLK
PMAX
PMAX
Parameter
Operating Bandwidth
Insertion Loss
Test Conditions
Min.
2
Max.
20
1.0
15
Units
GHz
dB
dBm
W
PIN = 0 dBm
0.35
13
6
Leakage Power
Maximum Input Power (CW)
Maximum Input Power (Pulsed)
≥
PIN 10 dBm
4
4
6
W
≥
Duration 1µsec,
10% Duty Cycle
RLIN
RLOUT
TR
Input Return Loss
Output Return Loss
Recovery Time
-10
-10
-15
-15
40
dB
dB
nS
≤
PIN 10 dBm
≤
PIN 10 dBm
PIN = 1W
10%-90% Recovery
PIN = 1W
50
ELK
Spike Leakage Energy
0.1
0.2
erg
Absolute Maximum Ratings
Symbol
PIN
TOP
TSTG
TMAX
Parameter/Conditions
Min.
Max.
10
95
165
300
Units
W
RF Input Power
Operating Temperature Range
Storage Temperature
-45
-65
°
C
°
C
Max. Assembly Temp.
(1 min. max.)
°
C
Note :
Specifications subject to change without notice.
DSS 018 WD
Phone: (408) 988-1845
Internet: http://www.FiltronicSolidState.com
Fax: (408) 970-9950