For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
MIXERS - SINGLE & DOUBLE BALANCED - SMT
1
HMC787LC3B
v01.0514
GaAs MMIC FUNDAMENTAL
MIXER, 3 - 10 GHz
General Description
Features
Functional Diagram
Passive Double-Balanced Topology
High LO/RF Isolation: 55 dB
Low Conversion Loss: 9 dB
Wide IF Bandwidth: DC - 4 GHz
No External Matching Required
12 Lead 3x3 mm SMT Package: 9 mm2
Electrical Specications, TA = +25° C, IF= 100 MHz, LO= +17 dBm*
Typical Applications
The HMC787LC3B is ideal for:
• WiMAX Infrastructure
• Microwave Radio
• ISM & UWB Radios
• Test Equipment & Sensors
• Military End-Use
The HMC787LC3B is a general purpose double
balanced mixer in a leadless RoHS compliant SMT
package that can be used as an upconverter or
downconverter between 3 and 10 GHz. This mixer
is fabricated in a GaAs MESFET process, and
requires no external components or matching cir-
cuitry. The HMC787LC3B provides excellent LO to
RF and LO to IF isolation due to optimized balun
structures and operates with LO drive level of +17
dBm. The ceramic SMT package eliminates the need
for wire bonding, and is compatible with high volume
surface mount manufacturing techniques.
Parameter Min. Typ. Max. Units
Frequency Range, RF & LO 3 - 10 GHz
Frequency Range, IF DC - 4 GHz
Conversion Loss 911.5 dB
Noise Figure (SSB) 9 dB
LO to RF Isolation 55 dB
LO to IF Isolation 35 42 dB
RF to IF Isolation 13 20 dB
IP3 (Input) 23 dBm
IP2 (Input) 70 dBm
1 dB Gain Compression (Input) 15 dBm
*Unless otherwise noted, all measurements performed as downconverter, IF= 100 MHz.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
MIXERS - SINGLE & DOUBLE BALANCED - SMT
2
HMC787LC3B
v01.0514
GaAs MMIC FUNDAMENTAL
MIXER, 3 - 10 GHz
Conversion Gain vs. Temperature
@ LO = +17 dBm, IF Frequency = 100 MHz
Conversion Loss vs. LO Drive
@ LO = +17 dBm, IF Frequency = 100 MHz
Conversion Gain vs. LO Drive, LSB
IF Frequency = 1100 MHz
Conversion Loss vs. LO Drive, LSB
IF Frequency = 3100 MHz
Isolation @ LO = +17 dBm Return Loss @ LO = +17 dBm
-20
-15
-10
-5
0
234567891011
+25C
+85C
-40C
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
23456789101112
+13 dBm
+15 dBm
+17 dBm
+19 dBm
+21 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
234567891011
RF/IF
LO/RF
LO/IF
ISOLATION (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
234567891011
+13 dBm
+15 dBm
+17 dBm
+19 dBm
+21 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
234567891011
+13 dBm
+15 dBm
+17 dBm
+19 dBm
+21 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
234567891011
RF RL
LO RL
RETURN LOSS (dB)
FREQUENCY (GHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
MIXERS - SINGLE & DOUBLE BALANCED - SMT
3
HMC787LC3B
v01.0514
GaAs MMIC FUNDAMENTAL
MIXER, 3 - 10 GHz
Input IP3 vs. Temperature
@ LO = +17 dBm *, IF Frequency = 100 MHz
Input IP3 vs. LO Drive*,
IF Frequency = 100 MHz
Upconverter Performance Conversion
Gain vs. LO Drive, IF Frequency 100 MHz
IF Bandwidth @ LO = +17 dBm
Upconverter Performance Conversion Gain
vs. LO Drive LSB, IF Frequency 1100 MHz
Upconverter Performance Conversion Gain
vs. LO Drive LSB, IF Frequency 3100 MHz
* Two-tone input power = -10 dBm each tone, 1 MHz spacing.
-20
-15
-10
-5
0
234567891011
+15 dBm
+17 dBm
+19 dBm
+21 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
0123456
Conversion Gain, LO = 4.01 GHz, LO < RF
Conversion Gain, LO = 9.51 GHz, LO > RF
RESPONSE (dB)
IF FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
234567891011
+15 dBm
+17 dBm
+19 dBm
+21 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
0
10
20
30
40
234567891011
+25C
+85C
-40C
IP3 (dBm)
FREQUENCY (GHz)
-20
-15
-10
-5
0
234567891011
+15 dBm
+17 dBm
+19 dBm
+21 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
10
20
30
40
234567891011
+13 dBm
+15 dBm
+17 dBm
+19 dBm
+21 dBm
IP3 (dBm)
FREQUENCY (GHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
MIXERS - SINGLE & DOUBLE BALANCED - SMT
4
HMC787LC3B
v01.0514
GaAs MMIC FUNDAMENTAL
MIXER, 3 - 10 GHz
Input IP2 vs. Temperature
@ LO = +17 dBm *
Input IP2 vs. LO Drive *
* Two-tone input power = -10 dBm each tone, 1 MHz spacing.
Input P1dB vs. Temperature
@ LO = +17 dBm
Input IP3 vs. LO Drive* LSB,
IF Frequency = 1100 MHz
Input IP3 vs. LO Drive* LSB,
IF Frequency = 3100 MHz
0
10
20
30
40
50
234567891011
+13 dBm
+15 dBm
+17 dBm
+19 dBm
+21 dBm
IP3 (dBm)
FREQUENCY (GHz)
10
30
50
70
90
234567891011
+13 dBm
+15 dBm
+17 dBm
+19 dBm
+21 dBm
IP2 (dBm)
FREQUENCY (GHz)
5
8
11
14
17
20
234567891011
+25C
+85C
-40C
P1dB (dBm)
FREQUENCY (GHz)
0
10
20
30
40
50
234567891011
+13 dBm
+15 dBm
+17 dBm
+19 dBm
+21 dBm
IP3 (dBm)
FREQUENCY (GHz)
10
30
50
70
90
234567891011
+25C
+85C
-40C
IP2 (dBm)
FREQUENCY (GHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
MIXERS - SINGLE & DOUBLE BALANCED - SMT
5
HMC787LC3B
v01.0514
GaAs MMIC FUNDAMENTAL
MIXER, 3 - 10 GHz
MxN Spurious Outputs
MxN Spurious Outputs
MxN Spurious Outputs
MxN Spurious Outputs
MxN Spurious Outputs
MxN Spurious Outputs
nLO
mRF 01234
0xx 16 38 34 54
123 037 23 38
292 73 89 71 85
377 66 68 62 71
4xx xx xx 108 115
RF = 3.1 GHz @ -5 dBm
LO = 3 GHz @ +17 dBm
All values in dBc below the IF output power level.
nLO
mRF 0 1 2 3 4
0xx 15 37 29 49
112 029 14 49
289 77 89 78 97
3103 85 102 83 88
4107 xx xx xx xx
RF = 6.1 GHz @ -5 dBm
LO = 3.1 GHz @ +17 dBm
All values in dBc below the IF output power level.
nLO
mRF 01234
0xx 11 27 45 60
1 7 0 45 43 61
291 74 82 87 96
3105 89 99 83 85
4xx xx xx xx xx
RF = 10.1 GHz @ -5 dBm
LO = 7.1 GHz @ +17 dBm
All values in dBc below the IF output power level.
nLO
mRF 0 1 2 3 4
0xx 13 34 55 73
124 032 41 68
286 72 86 80 102
380 58 94 83 99
4xx xx xx xx xx
RF = 3.1 GHz @ -5 dBm
LO = 6.1 GHz @ +17 dBm
All values in dBc below the IF output power level.
nLO
mRF 01234
0xx 11 33 56 61
111 032 54 59
288 69 79 67 93
3105 101 84 72 89
4108.45 xx xx xx xx
RF = 6.1 GHz @ -5 dBm
LO = 6 GHz @ +17 dBm
All values in dBc below the IF output power level.
nLO
mRF 01234
0xx 735 47 69
17027 55 84
291 76 83 73 105
3109 98 87 80 88
4xx xx xx xx 86
RF = 10.1 GHz @ -5 dBm
LO = 10 GHz @ +17 dBm
All values in dBc below the IF output power level.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
MIXERS - SINGLE & DOUBLE BALANCED - SMT
6
HMC787LC3B
v01.0514
GaAs MMIC FUNDAMENTAL
MIXER, 3 - 10 GHz
Absolute Maximum Ratings
RF / IF Input +26 dBm
LO Drive +26 dBm
Channel Temperature 150 °C
Continuous Pdiss (T = 85 °C)
(derate 11.4 mW/°C above 85 °C) 0.74 mW
Thermal Resistance
(channel to ground paddle) 87.7 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: ALUMINA.
2. LEAD AND GROUND PADDLE PLATING:
30-80 MICROINCHES GOLD OVER 50 MICROINCHES MINIMUM NICKEL.
3. DIMENSIONS ARE IN INCHES (MILLIMETERS).
4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
5. CHARACTERS TO BE HELVETICA MEDIUM, .025 HIGH, BLACK INK,
OR LASER MARK LOCATED APPROX. AS SHOWN.
6. PACKAGE WARP SHALL NOT EXCEED 0.05MM DATUM – C –
7. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
Harmonics of LO
nLO Spur @ RF Port
LO Freq. (GHz) 1234
356 53 71 73
661 58 77 87
10 46 62 84 73
LO = +17 dBm
All values in dBc below input LO level measured at RF port.
Package Information
Part Number Package Body Material Lead Finish MSL Rating Package Marking [2]
HMC787LC3B Alumina, White Gold over Nickel MSL3 [1] H787
XXXX
[1] Max peak reow temperature of 260 °C
[2] 4-Digit lot number XXXX
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
MIXERS - SINGLE & DOUBLE BALANCED - SMT
7
HMC787LC3B
v01.0514
GaAs MMIC FUNDAMENTAL
MIXER, 3 - 10 GHz
Pin Number Function Description Interface Schematic
1, 3, 4, 6, 7, 9 GND Package bottom must also be
connected to RF/DC ground.
2LO This pin is DC coupled
and matched to 50 Ohms.
5 IF
This pin is DC coupled. For applications not requiring opera-
tion 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 or sink more than 8 mA of current or part
non-function and possible part failure will result.
8 RF This pin is DC coupled
and matched to 50 Ohms.
10, 11, 12 N/C
The pins are not connected internally; however, all data
shown herein was measured with these pins connected to
RF/DC ground externally.
Pin Descriptions
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
MIXERS - SINGLE & DOUBLE BALANCED - SMT
8
HMC787LC3B
v01.0514
GaAs MMIC FUNDAMENTAL
MIXER, 3 - 10 GHz
Evaluation PCB
Item Description
J1 - J2 SRI SMA Connector
J3 Johnson SMA Connector
U1 HMC787LC3B Mixer
PCB [2] 117611 Eva luati on PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Arlon 25 RF
The circuit board used in this 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 109952 [1]
