HMC142C8
v03.1105
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 6 - 15 GHz
Typical Applications
The HMC142C8 is ideal for:
• Microwave Point-to-Point Radios
• VSAT Ground Equipment
Features
Input IP3: 20 dBm
Conversion Loss: 8.5 dB
LO to RF Isolation: 35 dB
9
Functional Diagram
General Description
The HMC142C8 is a miniature double-balanced mixer
in a non-hermetic ceramic surface mount package
that can be used as an upconverter or downconverter.
The device is a passive diode/balun type mixer with
high dynamic range. The mixer can handle larger
signal levels than most active mixers due to the high
third order intercept. MMIC implementation provides
exceptional balance in the circuit resulting in high
LO/RF and LO/IF isolations and unit-to-unit consis-
tency. This mixer has applications where small size
and surface mount compatibility are important.
MIXERS - DBL-BAL - SMT
Electrical Specifi cations,
T
A
= +25° C, LO Drive = +15 dBm
Parameter
Frequency Range, RF & LO
Frequency Range, IF
Conversion Loss
Noise Figure (SSB)
LO to RF Isolation
LO to IF Isolation
IP3 (Input)
IP2 (Input)
1 dB Gain Compression (Input)
28
17
7 - 11 GHz
6 - 18 GHz
Min.
Typ.
6 - 15
DC - 2
8.5
10
8.5
35
25
20
45
10
10
12
10
Max.
Units
GHz
GHz
dB
dB
dB
dB
dB
dBm
dBm
dBm
9 - 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
HMC142C8
v03.1105
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 6 - 15 GHz
Conversion Loss
0
CONVERSION LOSS (dB)
Isolation
0
-10
ISOLATION (dB)
RF/IF
-5
-20
-30
-40
LO/IF
-10
-15
9
LO/RF
-20
2
3
4
5
6
7
8
9 10 11 12 13 14 15
FREQUENCY (GHz)
3
4
5
6
7
8
9
10 11
12 13
14 15
FREQUENCY (GHz)
Conversion Loss vs. LO Drive Level
-5
CONVERSION LOSS (dB)
+17 dBm
-7.5
+15 dBm
+13 dBm
Isolation vs. LO Drive Level
-20
+13 dBm
+10 dBm
-10
ISOLATION (dB)
-30
-40
+15 dBm
-50
+17 dBm
-12.5
+10 dBm
-15
2
3
4
5
6
7
8
9
10 11 12 13 14 15
-60
2
3
4
5
6
7
8
9
10 11 12 13 14 15
FREQUENCY (GHz)
FREQUENCY (GHz)
Return Loss
0
IF
RETURN LOSS (dB)
-5
-10
-15
RF
-20
-25
2
3
4
5
6
7
8
9 10 11 12 13 14 15
FREQUENCY (GHz)
Distortion and 1dB
Compression vs. LO Drive Level
Distortion
LO
Drive
RF (f1)= 11.01 GHz
RF (f2)= 11.00 GHz
LO= 11.5 GHz
RF Level= 0 dBm
IP3 (dBm)
18
21
21
IP2 (dBm)
42
45
45
1 dB
Compression
P1dB (dBm)
7
10
10
LO
(dBm)
+13
+15
+17
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
9 - 27
MIXERS - DBL-BAL - SMT
-50
HMC142C8
v03.1105
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 6 - 15 GHz
Absolute Maximum Ratings
RF/IF Input
LO Drive
Storage Temperature
Operating Temperature
+13 dBm
+27 dBm
-65 to +150 °C
-55 to +85 °C
9
MIXERS - DBL-BAL - SMT
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: WHITE ALUMINA 92%
2. LEAD, PACKAGE BOTTOM MATERIAL: COPPER
3. PLATING: ELECTROLYTIC GOLD 100-200 MICROINCHES, OVER
ELECTROLYTIC NICKEL 100-250 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 RF GROUND.
9 - 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
HMC142C8
v03.1105
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 6 - 15 GHz
Evaluation PCB
9
MIXERS - DBL-BAL - SMT
List of Materials for Evaluation PCB 107216
[1]
Item
J1 - J3
U1
PCB
[2]
Description
PCB Mount SMA RF Connector
HMC142C8 Mixer
107214 Evaluation 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
use RF circuit design techniques. Signal lines
should have 50 ohm impedance while the package
ground leads and exposed paddle should be con-
nected directly to the ground plane similar to that
shown. A sufficient number of via holes should be
used to connect the top and bottom ground planes.
The evaluation circuit board shown is available from
Hittite upon request.
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
9 - 29
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