HMC187MS8 / 187MS8E
v04.0505
GaAs MMIC SMT PASSIVE FREQUENCY
DOUBLER, 0.85 - 2.0 GHz INPUT
Typical Applications
Features
The HMC187MS8 / HMC187MS8E is suitable for:
• Wireless Local Loop
Conversion Loss: 15 dB
6
Fo, 3Fo, 4Fo Isolation: 40 dB
Input Drive Level: 10 to 20 dBm
• LMDS, VSAT, and Point-to-Point Radios
• UNII & HiperLAN
• Test Equipment
Functional Diagram
General Description
The HMC187MS8 & HMC187MS8E are miniature fre-
quency doubler MMICs in plastic 8-lead MSOP pack-
ages. The suppression of undesired fundamental and
higher order harmonics is 40 dB typical with respect to
input signal levels. The doubler uses the same diode/
balun technology used in Hittite MMIC mixers. The
doubler is ideal for high volume applications where
frequency doubling of a lower frequency is more eco-
nomical than directly generating a higher frequency.
The passive Schottky diode doubler technology con-
tributes no measurable additive phase noise onto the
multiplied signal.
Electrical Specifications, TA = +25° C, As a Function of Drive Level
Input = +10 dBm
Typ.
Input = +15 dBm
Typ.
Input = +20 dBm
Typ.
Parameter
Frequency Range, Input
Frequency Range, Output
Conversion Loss
Min.
Max.
Min.
Max.
Min.
Max.
18
Units
GHz
GHz
dB
1.25 - 1.75
2.5 - 3.5
18
1.0 - 1.75
2.0 - 3.5
14
0.85 - 2.0
1.7 - 4.0
15
22
17
FO Isolation
(with respect to input level)
35
46
33
45
52
40
dB
dB
dB
3FO Isolation
(with respect to input level)
4FO Isolation
(with respect to input level)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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