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M/A-COM Division of AMP Incorporated ■ North America: Tel. (800) 366-2266, Fax (800) 618-8883 ■ Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
■ Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V3.00
Features
• 50 dB Isolation Typical, 0.40 dB Insertion Loss Typical
• Custom Products Available with Alternate Configurations
such as Couplers, Attenuators, Higher Power Terminations,
Reverse Circulation and Termination on Ports 1 or 2
• Designed for Wireless Telecommunications Systems:
AMPS, N-AMPS, D-AMPS
Description
M/A-COM’s drop-in isolators, designed for cellular applications,
feature high performance at low cost. These designs off er the best
isolation per insertion loss ratio in the industry and are currently
produced in the tens of thousands of pieces per year. These units
can be ordered so as to be compatible with solder reflow
manufacturing techniques. Both circulators and isolators are in
stock at all authorized M/A-COM distributors.
Part Number Frequency Range (MHz)
FR21-0001
FR21-0002
FR21-0003
FR21-0004
869 – 894
925 – 960
1805 – 1880
1930 – 1990
Dual Junction Drop-In Isolator
Electrical Specifications
Parameter Units
Min. Typ. Max.
Isolation dB 45 50 —
Insertion Loss dB — 0.4 0.5
Forward Power Watts — — 100
Reflected Power Watts — — 60
VSWR — — — 1.20
-10 to +70° C
FR21-Series
FR21
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M/A-COM Division of AMP Incorporated ■ North America: Tel. (800) 366-2266, Fax (800) 618-8883 ■ Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
■ Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V3.00
-70
-60
-50
-40
-30
-20
-10
0
0.86 0.87 0.88 0.89 0.9
Frequency (GHz)
Isolation (dB)
Typical Performance, T = +25°C
FR21-0001
Insertion Loss
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.86 0.87 0.88 0.89 0.9
Frequency (GHz)
Insertion Loss (dB)
FR21-0002
Isolation
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.895 0.915 0.935 0.955 0.975
Frequency (GHz)
Insertion Loss (dB)
FR21-0003
Insertion Loss
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
1800 1820 1840 1860 1880 1900
Frequency (GHz)
Insertion Loss (dB)
-80
-70
-60
-50
-40
-30
-20
-10
0
1800 1820 1840 1860 1880 1900
Frequency (GHz)
Isolation (dB)
FR21-0004
Isolation Insertion Loss
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
1920 1940 1960 1980 2000
Frequency (MHz)
Isolation (dB)
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
1920 1930 1940 1950 1960 1970 1980 1990 2000
Frequency (MHz)
Insertion Loss (dB)
-70
-60
-50
-40
-30
-20
-10
0
0.895 0.915 0.935 0.955 0.975
Frequency (GHz)
Isolation (dB)
Insertion Loss
Isolation
Isolation
Dual Junction Drop-In Isolator FR21-Series
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