Hittite HMC188MS8 Datasheet
MICROWAVE CORPORATION
GaAs MMIC SMT FREQUENCY DOUBLER 1.25 - 3.0 GHz INPUT
FEBRUARY 2001
HMC188MS8
Features
CONVERSION LOSS: 15 dB
Fo, 3Fo, 4Fo ISOLATION: 40 dB
INPUT DRIVE LEVEL: 10 to 20 dBm
3
MULTIPLIERS
SMT
General Description
The HMC188MS8 is a miniature frequency
doubler in a plastic 8-lead MSOP package.
The suppression of the undesired fundamental and higher order harmonics is typically 45 to 50 dB with respect to input signal
levels. The doubler uses same diode/balun
structures used in Hittite MMIC mixers. The
doubler is ideal for high volume applications
where frequency doubling of a lower frequency is more economical than directly
generating a higher frequency. The passive
Schottky diode doubler technology contributes no measurable additive phase noise
onto the multiplied signal.
Guaranteed Perf ormance, 50 Ohm system -40 to +85 deg C
Typical Electrical Performance vs. Drive Level
10 dBm 15 dBm 20 dBm Units
Input Frequency Range 1.75-2.75 1.5-2.5 1.25-3.0 GHz
Output Frequency Range 3.5-5.5 3.0-5.0 2.5-6.0 GHz
Conversion Loss 20 15 18 dB
Performance for Input Signals in the 1.5 - 2.5 GHz Band (+15dBm Drive)
Min. Typ. Max. Units
Fo Isolation (with respect to input level) 35 45 dB
3Fo Isolation (with respect to i nput level ) 43 50 dB
4Fo Isolation (with respect to input l evel ) 38 45 dB
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
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MICROWAVE CORPORATION
HMC188MS8 SMT FREQUENCY DOUBLER 1.25 - 3.0 GHz INPUT
HMC188MS8
FEBRUARY 2001
Conversion Loss@ +15 dBm
Drive Level
0
-10
-20
-30
+85C
-40
CONVERSION LOSS (dB)
-50
012345678
OUTPUT FREQUENCY (GHz)
-40C
+25C
Input Return Loss vs. Drive Level
0
-5
-10
-15
-20
INPUT RETURN LOSS (dB)
-25
01234 567
Input = +10 dBm
Input = +15 dBm
Input = +20 dBm
INPUT FREQUENCY (GHz)
Isolation @ +15 dBm
Drive Level
0
-10
-20
-30
Fo
-40
-50
-60
-70
ISOLATION (dB)
-80
-90
-100
0 5 10 15
4Fo
3Fo
3
20
* With respect to input level
Output Return Loss vs. Drive Level
0
Input = +15 dBm
-5
-10
Input = +10 dBm
MULTIPLIERS
SMT
-15
-20
Input = +20 dBm
OUTPUT RETURN LOSS (dB)
-25
8
012345678
OUTPUT FREQUENCY (GHz)
Note: Output return loss measured at 2fo, with +10 dBm,
+15 dBm, and +20 dBm drive levels on input of doubler.
Conversion Loss vs. Drive Level
0
Input = +20 dBm
-10
-20
-30
-40
CONVERSION LOSS (dB)
-50
012345678
OUTPUT FREQUENCY (GHz)
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
Input = +10 dBm
Input = +13 dBm
Input = +15 dBm
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