HMC204C8
v04.1105
GaAs MMIC SMT PASSIVE FREQUENCY
DOUBLER, 4 - 8 GHz INPUT
Typical Applications
Features
Conversion Loss: 16 dB
Fo, 3Fo, 4Fo Isolation: 40 dB
Passive: No Bias Required
7
FREQ. MULTIPLIERS - PASSIVE - SMT
The HMC204C8 is suitable for:
• Wireless Local Loop
• LMDS, VSAT, and Point-to-Point Radios
• Test Equipment
Functional Diagram
General Description
The HMC204C8 is a passive miniature frequency
doubler in a non-hermetic surface mount package.
Suppression of undesired fundamental and higher
order harmonics is 40 dB typical with respect to input
signal level. The doubler utilizes the same GaAs
Schottky diode/balun technology found in Hittite
MMIC mixers. It features small size, no DC bias, and
no measurable additive phase noise onto the multi-
plied signal.
Electrical Specifi cations,
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.
5.5 - 7.5
11.0 - 15.0
16
19
37
42
35
Max.
Min.
Input = +13 dBm
Typ.
5.0 - 8.0
10.0 - 16.0
16
41
46
40
19
Max.
Min.
Input = +15 dBm
Typ.
4.0 - 8.0
8.0 - 16.0
16
19
Max.
Units
GHz
GHz
dB
dB
dB
dB
7 - 24
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
HMC204C8
v04.1105
GaAs MMIC SMT PASSIVE FREQUENCY
DOUBLER, 4 - 8 GHz INPUT
Conversion Gain vs. Temperature
@ +15 dBm Drive Level
0
Isolation @ +15 dBm Drive Level*
0
7
FREQ. MULTIPLIERS - PASSIVE - SMT
7 - 25
CONVERSION GAIN (dB)
-20
-10
ISOLATION (dB)
-40 C
+25 C
+85 C
-40
-20
-60
FO
3FO
4FO
-30
-80
-40
3
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
-100
0
5
10
15
20
25
30
35
40
FREQUENCY (GHz)
*With respect to input level
Input Return Loss vs. Drive Level
0
Output Return Loss for
Several Input Frequencies
0
RETURN LOSS (dB)
-10
RETURN LOSS (dB)
-5
-5
-10
-15
+8 dBm
+10 dBm
+12 dBm
+14 dBm
-15
4 GHz In
6 GHz In
8 GHz In
-20
3
4
5
6
7
8
9
FREQUENCY (GHz)
-20
8
10
12
14
16
OUTPUT FREQUENCY (GHz)
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
HMC204C8
v04.1105
GaAs MMIC SMT PASSIVE FREQUENCY
DOUBLER, 4 - 8 GHz INPUT
Conversion Gain @ 25
°C
vs. Drive Level
Output Return Loss with 4 GHz Input
0
7
CONVERSION GAIN (dB)
0
FREQ. MULTIPLIERS - PASSIVE - SMT
-20
RETURN LOSS (dB)
-10
-5
-10
-30
+8 dBm
+10 dBm
+12 dBm
+15 dBm
-15
+8 dBm
+10 dBm
+12 dBm
-40
3
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
-20
8
10
12
14
16
OUTPUT FREQUENCY (GHz)
Conversion Gain @ -40
°C
vs. Drive Level
0
Output Return Loss with 6 GHz Input
0
CONVERSION GAIN (dB)
-20
RETURN LOSS (dB)
-10
-5
-10
-30
+8 dBm
+10 dBm
+12 dBm
+15 dB,
-15
+8 dBm
+10 dBm
+12 dBm
-40
3
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
-20
8
10
12
14
16
OUTPUT FREQUENCY (GHz)
Conversion Gain @ +85
°C
vs. Drive Level
0
Output Return Loss with 8 GHz Input
0
CONVERSION GAIN (dB)
-20
RETURN LOSS (dB)
-10
-5
-10
-30
+8 dBm
+10 dBm
+12 dBm
+15 dBm
-15
+8 dBm
+10 dBm
+12 dBm
-40
3
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
-20
8
10
12
14
16
OUTPUT FREQUENCY (GHz)
7 - 26
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
HMC204C8
v04.1105
GaAs MMIC SMT PASSIVE FREQUENCY
DOUBLER, 4 - 8 GHz INPUT
Absolute Maximum Ratings
Input Drive
Storage Temperature
Operating Temperature
+27 dBm
-65 to +150 °C
-40 to +85 °C
7
FREQ. MULTIPLIERS - PASSIVE - SMT
NOTES:
1. PACKAGE BODY MATERIAL: WHITE ALUMINA 92%
2. LEAD, PACKAGE BOTTOM MATERIAL: COPPER
3. PLATING: ELECTROLYTIC GOLD 100 - 200 MICROINCHES OVER
ELECTROLYTIC NICKEL 100 TO 200 MICROINCHES.
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. PACKAGE LENGTH AND WIDTH DIMENSIONS DO NOT INCLUDE
LID SEAL PROTRUSION .005 PER SIDE.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED
TO PCB PF GROUND.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
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
7 - 27
HMC204C8
v04.1105
GaAs MMIC SMT PASSIVE FREQUENCY
DOUBLER, 4 - 8 GHz INPUT
Evaluation PCB
7
FREQ. MULTIPLIERS - PASSIVE - SMT
List of Materials for Evaluation PCB 107196
[1]
Item
J1, J2
U1
PCB
[2]
Description
PCB Mount SMA Connector
HMC204C8, Doubler
107165 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
The circuit board used in the final application should
be generated with proper RF circuit design tech-
niques. Signal lines should have 50 ohm imped-
ance 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.
7 - 28
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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