MICROWAVE CORPORATION
v02.1201
HMC188MS8
Features
Conversion Loss: 15 dB
Fo, 3Fo, 4Fo Isolation: 45 dB
Input Drive Level: 10 to 20 dBm
GaAs MMIC SMT PASSIVE FREQUENCY
DOUBLER, 1.25 - 3.0 GHz INPUT
Typical Applications
The HMC188MS8 is suitable for:
• Wireless Local Loop
• LMDS, VSAT, and Pt to Pt Radios
• UNII & HiperLAN
• Test Equipment
11
FREQ. MULTIPLIERS - SMT
Functional Diagram
General Description
The HMC188MS8 is a miniature frequency doubler
in a plastic 8-lead MSOP package. The suppres-
sion of undesired fundamental and higher order har-
monics is 45 dB typical with respect to input signal
levels. The doubler uses the same diode/balun tech-
nology 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 contrib-
utes no measurable additive phase noise onto the
multiplied signal.
Electrical Specifications,
T
A
= +25° C, As a Function of Drive Level
Input = +10 dBm
Parameter
Frequency Range, Input
Frequency Range, Output
Conversion Loss
FO Isolation
(with respect to input level)
3FO Isolation
(with respect to input level)
4FO Isolation
(with respect to input level)
Min.
Typ.
1.75 - 2.75
3.5 - 5.5
19
22
35
Max.
Min.
Input = +15 dBm
Typ.
1.5 - 2.5
3.0 - 5.0
15
45
18
Max.
Min.
Input = +20 dBm
Typ.
1.25 - 3.0
2.5 - 6.0
16
19
Max.
Units
GHz
GHz
dB
dB
43
50
dB
38
45
dB
11 - 16
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
v02.1201
MICROWAVE CORPORATION
HMC188MS8
GaAs MMIC SMT FREQUENCY
DOUBLER, 1.25 - 3.0 GHz INPUT
GaAs
Loss @ +15 dBm Drive Level
PUMPED MIXER 17 - 25 GHz
Conversion
MMIC SUB-HARMONICALLY
Isolation @ +15 dBm Drive Level*
0
-40C
CONVERSION LOSS (dB)
-10
-20
-30
+85C
-40
-50
0
1
2
3
4
5
6
7
8
OUTPUT FREQUENCY (GHz)
+25C
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
ISOLATION (dB)
Fo
4Fo
3Fo
0
5
10
FREQUENCY (GHz)
15
20
11
FREQ. MULTIPLIERS - SMT
11 - 17
*With respect to input level
Input Return Loss vs. Drive Level
0
Input = +10 dBm
Output Return Loss vs. Drive Level
0
OUTPUT RETURN LOSS (dB)
-5
-10
-15
-20
-25
0
1
2
3
4
5
6
7
8
OUTPUT FREQUENCY (GHz)
Input = +15 dBm
Input = +10 dBm
INPUT RETURN LOSS (dB)
-5
-10
-15
Input = +15 dBm
-20
Input = +20 dBm
Input = +20 dBm
-25
0
1
2
3
4
5
6
7
8
INPUT FREQUENCY (GHz)
Note: Output return loss measured at 2fo, with +10dBm,
+15 dBm, and +20 dBm drive levels on input of doubler.
Conversion Loss vs. Drive Level
0
Input = +20 dBm
CONVERSION LOSS (dB)
-10
-20
Input = +10 dBm
-30
Input = +13 dBm
-40
Input = +15 dBm
-50
0
1
2
3
4
5
6
7
8
OUTPUT FREQUENCY (GHz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
v02.1201
MICROWAVE CORPORATION
HMC188MS8
GaAs MMIC SMT FREQUENCY
DOUBLER, 1.25 - 3.0 GHz INPUT
Absolute Maximum Ratings
Input Drive
Storage Temperature
Operating Temperature
+27 dBm
-65 to +150 °C
-40 to +85 °C
11
FREQ. MULTIPLIERS - SMT
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED PLASTIC
SILICA AND SILICON IMPREGNATED.
2. LEADFRAME MATERIAL: COPPER ALLOY
3. LEADFRAME PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15 mm PER SIDE.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25 mm PER SIDE.
7. ALL GROUND LEADS MUST BE SOLDERED TO PCB PF GROUND.
11 - 18
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
v02.1201
MICROWAVE CORPORATION
HMC188MS8
GaAs MMIC SMT FREQUENCY
DOUBLER, 1.25 - 3.0 GHz INPUT
Evaluation PCB
11
FREQ. MULTIPLIERS - SMT
11 - 19
The circuit board used in the final application should be generated with proper RF circuit design techniques.
Signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be
connected directly to the ground plane similar to that shown. The evaluation circuit board shown is available from
Hittite upon request.
List of Materials
Item
J1 - J3
C1
U1
PCB*
Description
PC Mount SMA Connector
1,000 pF Capacitor, 0603 Pkg.
HMC443LP4, x4 Active Multiplier
104610 Eval Board
* Circuit Board Material: Rogers 4350
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
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