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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
9
9 - 10
HMC129LC4
GaAs MMIC DOUBLE-BALANCED
MIXER, 4 - 8 GHz
v02.1208
General Description
Features
Functional Diagram
The HMC129LC4 is a general purpose double-bal-
anced MMIC mixer housed in a leadless “PB Free”
RoHS-Compliant SMT package which can be used as
an upconverter or downconverter in the 4 to 8 GHz
band. The HMC129LC4 is ideally suited for applica-
tions where small size, no DC bias, and consistent
IC performance are required. This mixer can operate
over a wide LO drive input of +9 to +15 dBm. It per-
forms equally well as a Bi-Phase modulator or demod-
ulator. The HMC129LC4 eliminates the need for wire
bonding, allowing use of surface mount manufacturing
techniques.
Conversion Loss: 7 dB
LO to RF and IF Isolation: 40 dB
Input IP3: +17 dBm
RoHS Compliant 4x4 mm SMT Package
Typical Applications
The HMC129LC4 is ideal for:
• Microwave & VSAT Radios
• Test Equipment
• Military EW, ECM, C3I
Electrical Speci cations, TA = +25° C, LO Drive = +15 dBm*
Parameter Min. Typ. Max. Units
Frequency Range, RF & LO 4.0 - 8.0 GHz
Frequency Range, IF DC - 3.0 GHz
Conversion Loss 79dB
Noise Figure (SSB) 79dB
LO to RF Isolation 30 40 dB
LO to IF Isolation 32 40 dB
IP3 (Input) 17 dBm
IP2 (Input) 50 dBm
1 dB Gain Compression (Input) 10 dBm
* Unless otherwise noted, all measurements performed as downconverter, IF = 100 MHz
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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
9
9 - 11
Isolation @ LO = +15 dBm
Conversion Gain vs. LO Drive
-20
-15
-10
-5
0
3456789
+25C
+85C
-40C
CONVERSION GAIN (dB)
FREQUENCY (GHz)
Conversion Gain vs. Temperature
LO = +15 dBm
Upconverter Performance
Conversion Gain vs. LO Drive
Return Loss @ LO = +15 dBm
IF Bandwidth @ LO = +15 dBm
-25
-20
-15
-10
-5
0
3456789
LO Return Loss
RF Return Loss
RETURN LOSS (dB)
FREQUENCY (GHz)
-15
-10
-5
0
0 0.5 1 1.5 2 2.5 3 3.5 4
Return Loss
Conversion Gain
RESPONSE (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
3456789
+ 11 dBm
+ 13 dBm
+ 15 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
3456789
LO = + 11 dBm
LO = + 13 dBm
LO = + 15 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-60
-50
-40
-30
-20
-10
0
3456789
RF/IF
LO/RF
LO/IF
ISOLATION (dB)
FREQUENCY (GHz)
HMC129LC4
GaAs MMIC DOUBLE-BALANCED
MIXER, 4 - 8 GHz
v02.1208
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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
9
9 - 12
Input IP2 vs.
Temperature @ LO = +15 dBm
Input IP2 vs. LO Drive
Input IP3 vs. LO Drive
Input P1dB vs.
Temperature @ LO = +15 dBm
Input IP3 vs.
Temperature @ LO = +15 dBm
Harmonics of LO
nLO Spur @ RF Port
LO Freq. (GHz) 1 2 3 4
355475768
4 42504269
542545456
639544066
7 35553563
835634582
929453781
10 15 42 35 88
LO = +15 dBm
All values in dBc below input LO level measured at RF port
40
45
50
55
60
65
70
3456789
+25C
+85C
-40C
INPUT IP2 (dBm)
FREQUENCY (GHz)
40
45
50
55
60
65
70
3456789
LO = + 11 dBm
LO = + 13 dBm
LO = + 15 dBm
INPUT IP2 (dBm)
FREQUENCY (GHz)
8
10
12
14
16
18
3456789
+25C
+85C
-40C
INPUT P1dB (dBm)
FREQUENCY (GHz)
10
15
20
25
30
3456789
+25C
+85C
-40C
INPUT IP3 (dBm)
FREQUENCY (GHz)
10
15
20
25
30
3456789
LO = + 11 dBm
LO = + 13 dBm
LO = + 15 dBm
INPUT IP3 (dBm)
FREQUENCY (GHz)
HMC129LC4
GaAs MMIC DOUBLE-BALANCED
MIXER, 4 - 8 GHz
v02.1208
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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
9
9 - 13
Absolute Maximum Ratings
RF/IF Input +15 dBm
LO Drive +27 dBm
IF DC Current 4 mA
Channel Temperature 150 °C
Continuous Pdiss (T = 85 °C)
(derate 4.957 mW/ °C above 85 °C) 124 mW
Thermal Resistance
(channel to ground paddle) 131.4 °C/ W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
MxN Spurious @ IF Port
nLO
mRF01234
0xx10251341
190334446
27876707886
38891876481
497102104109110
RF Freq. = 6.1 GHz @ -10 dBm
LO Freq. = 6.0 GHz @ +15 dBm
Measured as downconverter
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: ALUMINA
2. LEAD AND GROUND PADDLE PLATING: GOLD FLASH OVER Ni
3. DIMENSIONS ARE IN INCHES [MILLIMETERS]
4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm DATUM -C-
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED TO PCB RF GROUND
7. CLASSIFIED AS MOISTURE SESITIVITY LEVEL (MSL) 1.
HMC129LC4
GaAs MMIC DOUBLE-BALANCED
MIXER, 4 - 8 GHz
v02.1208
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
9
9 - 14
Pin Number Function Description Interface Schematic
1, 5 - 7, 11 - 14,
18 - 24 N/C No Connection. These pins may be connected to RF/DC ground.
Performance will not be affected.
2, 4, 8, 10,
15, 17 GND These pins and package bottom
must be connect to RF/DC ground.
3RF This pin is DC coupled
and matched to 50 Ohms.
9IF
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 2 mA of current or die non-function and possible
die failure will result.
16 LO This pin is DC coupled
and matched to 50 Ohms.
Pin Descriptions
HMC129LC4
GaAs MMIC DOUBLE-BALANCED
MIXER, 4 - 8 GHz
v02.1208
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
MIXERS - SINGLE & DOUBLE BALANCED - SMT
9
9 - 15
Evaluation PCB
The circuit board used in the nal 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.
List of Materials for Evaluation PCB 109728 [1]
Item Description
J1 - J3 PCB Mount SMA Connector
U1 HMC129LC4
PCB [2] 109726 Evaluation Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC129LC4
GaAs MMIC DOUBLE-BALANCED
MIXER, 4 - 8 GHz
v02.1208
