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5
MIXERS
Typical Applications
The HMC-C044 is ideal for:
• Point-to-Point Radios
• Point-to-Multi-Point Radios & VSAT
• Test Equipment & Sensors
• Military End-Use
Functional Diagram
HMC-C044
v00.0307
GaAs MMIC I/Q MIXER MODULE
15 - 23 GHz
Features
Wide IF Bandwidth: DC - 3.5 GHz
Image Rejection: 30 dB
LO to RF Isolation: 35 dB
High Input IP3: +25 dBm
Hermetically Sealed Module
Field Replaceable SMA Connectors
-55 to +85 °C Operating Temperature
General Description
The HMC-C044 is a passive I/Q MMIC mixer housed
in a miniature hermetic module which can be used as
either an Image Reject Mixer or a Single Sideband
Upconverter. The module utilizes two standard Hittite
double balanced mixer cells and a 90 degree hybrid
fabricated on a GaAs MESFET process. A low frequency quadrature hybrid was used to produce a 100
MHz USB IF output. This MMIC based module is a
more reliable and consistent alternative to hybrid style
I/Q Mixers and Single Sideband Converter assemblies. The module features removable SMA connectors which can be detached to allow direct connection
of the I/O pins to a microstrip or coplanar circuit.
5 - 46
Electrical Specifications, T
Parameter Min. Typ. Max. Units
Frequency Range, RF/LO 15 - 23 GHz
Frequency Range, IF DC - 3.5 GHz
Conversion Loss (As IRM) 8 10 dB
Image Rejection 18 30 dB
1 dB Compression (Input) +15 dBm
LO to RF Isolation 30 35 dB
LO to IF Isolation 17 22 dB
IP3 (Input) +25 dBm
Amplitude Balance 0.3 dB
Phase Balance 4Deg
* Unless otherwise noted, all measurements performed as downconverter.
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
= +25° C, IF= 100 MHz, LO = +17 dBm*
A
Order Online at www.hittite.com
HMC-C044
v00.0307
GaAs MMIC I/Q MIXER MODULE
15 - 23 GHz
Data taken As IRM With External IF Hybrid
Conversion Gain vs. Temperature Image Rejection vs. Temperature
0
40
-5
-10
-15
CONVERSION GAIN (dB)
-20
13 14 15 16 17 18 19 20 21 22 23 24
RF FREQUENCY (GHz)
+25C
+85C
-55C
30
20
10
IMAGE REJECTION (dB)
0
13 14 15 16 17 18 19 20 21 22 23 24
Conversion Gain vs. LO Drive Return Loss
0
-5
-10
-15
CONVERSION GAIN (dB)
-20
13 14 15 16 17 18 19 20 21 22 23 24
+11dBm
+13dBm
+15dBm
+17dBm
+19dBm
RF FREQUENCY (GHz)
0
-5
-10
RETURN LOSS (dB)
-15
13 14 15 16 17 18 19 20 21 22 23 24
+25C
+85C
-55C
RF FREQUENCY (GHz)
FREQUENCY (GHz)
5
RF
LO
MIXERS
Input P1dB vs. Temperature Input IP3 vs. LO Drive
22
20
18
16
14
12
10
8
P1dB (dBm)
6
4
2
0
13 14 15 16 17 18 19 20 21 22 23 24
RF FREQUENCY (GHz)
+25C
+85C
-55C
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 Online at www.hittite.com
30
25
20
15
IP3 (dBm)
10
5
0
13 14 15 16 17 18 19 20 21 22 23 24
RF FREQUENCY (GHz)
LO = +13 dBm
LO = +15 dBm
LO = +17 dBm
LO = +19 dBm
5 - 47
v00.0307
Quadrature Channel Data Taken Without IF Hybrid
HMC-C044
GaAs MMIC I/Q MIXER MODULE
15 - 23 GHz
5
MIXERS
Isolations
-10
-20
-30
LO/RF
-40
RF/IF2
ISOLATION (dB)
-50
-60
13 14 15 16 17 18 19 20 21 22 23 24
RF/IF1
RF FREQUENCY (GHz)
LO/IF2
LO/IF1
Amplitude Balance vs. LO Drive
2
1.5
1
0.5
0
-0.5
-1
AMPLITUDE BALANCE (dB)
-1.5
-2
13 14 15 16 17 18 19 20 21 22 23 24
RF FREQUENCY (GHz)
LO = +13dBm
LO = +15dBm
LO = +17 dBm
LO = +19 dBm
IF Bandwidth*
0
-5
-10
RESPONSE (dB)
-15
-20
0.5 1 1.5 2 2.5 3 3.5
RETURN LOSS
CONVERSION GAIN
IF FREQUENCY (GHz)
Phase Balance vs. LO Drive
15
LO = +13 dBm
10
5
0
-5
-10
PHASE BALANCE (degrees)
-15
13 14 15 16 17 18 19 20 21 22 23 24
LO = +15 dBm
LO = +17 dBm
LO = +19 dBm
RF FREQUENCY (GHz)
5 - 48
Upconverter Performance Conversion
Gain vs. LO Drive*
0
-5
-10
LO = +13dBm
-15
CONVERSION GAIN (dB)
-20
13 14 15 16 17 18 19 20 21 22 23 24
* Conversion gain data taken with external IF hybrid
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
LO = +15dBm
LO = +17dBm
LO = +19dBm
LO = +21dBm
RF FREQUENCY (GHz)
Order Online at www.hittite.com
Upconverter Performance Sideband
Rejection vs. LO Drive*
0
LO = +13dBm
-10
-20
-30
-40
SIDEBAND REJECTION (dBc)
-50
13 14 15 16 17 18 19 20 21 22 23 24
LO = +15dBm
LO = +17dBm
LO = +19dBm
LO = +21dBm
RF FREQUENCY (GHz)
v00.0307
GaAs MMIC I/Q MIXER MODULE
Harmonics of LO MxN Spurious Outputs
HMC-C044
15 - 23 GHz
LO Freq. (GHz)
15.5 31 51
17 31 56
18.5 32 63
20 37 73
21.5 42 72
23 55 71
LO = + 15 dBm
Values in dBc below input LO level measured at RF Port.
nLO Spur at RF Port
12
Absolute Maximum Ratings
RF / IF Input +20 dBm
LO Drive + 27 dBm
Channel Temperature 150°C
Continuous Pdiss (T=85°C)
(derate 5.22 mW/°C above 85°C)
Thermal Resistance (R
(junction to package bottom)
Storage Temperature -65 to +150 °C
Operating Temperature -55 to +85 deg °C
)
TH
340 mW
191.5 °C/ W
nLO
mRF01234
0xx-929xxxx
13404661xx
28765826287
3xx87928690
4xxxx849292
RF = 17.6 GHz @ -10 dBm
LO = 17.5 GHz @ +15 dBm
Data taken without IF hybrid
All values in dBc below IF power level
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
5
MIXERS
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 Online at www.hittite.com
5 - 49
5
HMC-C044
v00.0307
GaAs MMIC I/Q MIXER MODULE
15 - 23 GHz
Outline Drawing
MIXERS
Typical Package Weight
Package 20.0 gms
Spacer 2.6 gms
+/- 1 gms Tolerance
NOTES:
1. PACKAGE, LEADS, COVER MATERIAL: KOVAR™
2. PLATING: ELECTROLYTIC GOLD 50 MICROI NCHES MIN ., OVER
ELECTROLYTIC NICKEL 75 MICROINCHES MIN.
3. SPACER MATERIAL: NICKEL PL ATED ALUMINUM
4. ALL DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. TOLERA NCES ±0.010 [0. 25] UNLESS OT HERWISE SPECIFIED.
6. FIELD REPL ACEAB LE SMA CONNECTORS.
TENSOLITE 5602- 5CCSF OR EQ UIVALENT.
5 - 50
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 Online at www.hittite.com
HMC-C044
v00.0307
GaAs MMIC I/Q MIXER MODULE
Pin Descriptions
Pin Number Function Description Interface Schematic
15 - 23 GHz
1RF
2IF1
3IF2
4LO
This pin is DC coupled. For applications not requiring operation to DC, this port should be DC blocked
externally using a series capacitor whose value has
been chosen to pass the necessary IF frequency
range. For operation to DC, this pin must not source/
sink more than 3mA of current or part non-function
This pin is AC coupled and matched to
50 Ohms from 15 to 23 GHz.
and possible par t failure will result.
This pin is AC coupled and matched to
50 Ohms from 15 to 23 GHz.
5
MIXERS
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 Online at www.hittite.com
5 - 51
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