Hittite HMC187MS8 Datasheet

MICROWAVE CORPORATION

GaAs MMIC SMT FREQUENCY DOUBLER 0.85 - 2.0 GHz INPUT

HMC187MS8

FEBRUARY 2001

Features

CONVERSION LOSS: 16 dB

Fo, 3Fo, 4Fo ISOLATION: 40 dB

INPUT DRIVE LEVEL: 10 to 20 dBm

3

MULTIPLIERS

SMT

V01.0800

General Description

The HMC187MS8 is a miniature frequency
doubler in a plastic 8-lead MSOP package.
The suppression of the undesired funda­mental and higher order harmonics is typi­cally 40 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.

GuaranteedPerformance, 50 Ohm system -40 to +85 deg C

Typical Electrical Performance vs. Drive Level

10 dBm 15 dBm 20 dBm Units

Input Frequency Range 1.25-1.75 1.0-1.75 0.85-2.0 GHz

Output Frequency Range 2.5-3.5 2.0-3.5 1.7-4.0 GHz
Conversion Loss 20 15 16 dB

Performance for Input Signals in the 1.0 - 1.75 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) 46 52 dB
4Fo Isolation (with respect to i nput level) 33 40 dB

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

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MICROWAVE CORPORATION

HMC187MS8 SMT FREQUENCY DOUBLER 0.85 - 2.0 GHz INPUT

HMC187MS8

V01.0800

Conversion Loss @ +15 dBm
Drive Level

0

-5

-10

-15

-20

-25

CONVERSION GAIN (dB)

-30

-35
123456

OUTPUT FREQUENC Y (GHz)

+85 C

-40 C+25 C

Input Return Loss
vs. Drive Level

0

-5

-10

-15

-20

INPUT RETUR N LOS S (dB)

-25

-30

0.5 1 1.5 2 2.5 3

15 dBm

INPUT FREQUENCY (GHz)

10 dBm

13 dBm

17 dBm

FEBRUARY 2001

Isolation @ +15 dBm
Drive Level *

0

-10

-20
1FO

-30

-40

ISOLATIO N (dB )

-50

-60

-70

024681012

4FO

3FO

FREQUENCY (GHz)

* With respect to input level

Output Return Loss for
Several Input Frequencies

0

1GHz

-5

-10

-15

-20

OUTPUT RETURN LOSS (dB)

-25

1.75 GHz

2.5 GHz

012345678910

OUTPUT FREQUENC Y (GHz)

3

MULTIPLIERS

SMT

Note: Output return loss measured at 2fo, with +10 dBm,
+15 dBm, and +20 dBm drive levels on input of doubler.

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

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