HMC798LC4
v04.0614
Typical Applications
Features
The HMC798LC4 is ideal for:
Integrated LO Amplifier: +4 dBm Input
• Point-to-Point Radios
Sub-Harmonically Pumped (x2) LO
• Point-to-Multi-Point Radios & VSAT
Wideband IF: DC - 4 GHz
• Test Equipment & Sensors
Single Positive Supply: +5V @ 95mA
• Military End-Use
24 Lead 4x4mm SMT Package: 16mm²
TE
• SATCOM
Functional Diagram
General Description
LE
The HMC798LC4 is a 24 - 34 GHz Sub-harmonically
Pumped (x2) MMIC Mixer with an integrated LO
amplifier in a leadless RoHS compliant SMT package.
The 2LO to RF isolation is excellent at 30 dB,
eliminating the need for additional filtering. The
LO amplifier is a single bias +5V design with a
nominal +4 dBm drive requirement. The RF and
LO ports are matched to 50 Ohms for ease of
use while the IF covers DC to 4 GHz. The HMC798LC4
eliminates the need for wire bonding, allowing use of
surface mount manufacturing techniques.
B
SO
MIXERS - SUB-HARMONIC - SMT
GaAs MMIC SUB-HARMONIC
SMT MIXER, 24 - 34 GHz
O
Electrical Specifications, TA = +25°C, Vcc = 5V
IF = 1 GHz
LO = 4 dBm
Parameter
Min.
Typ.
IF = 1 GHz
LO = 4 dBm
Max.
Min.
Typ.
Units
Max.
Frequency Range, RF
24 - 29.5
29.5 - 34
GHz
Frequency Range, LO
12 - 16
13.5 - 17.75
GHz
Frequency Range, IF
DC - 4
Conversion Loss
2LO to RF Isolation
11
25
2LO to IF Isolation
IP3 (Input)
DC - 4
13
30
10
20
45
17
20
1 dB Compression (Input)
10
Supply Current (Idd)
95
19
125
GHz
12
dB
25
dB
35
dB
22
dBm
12
dBm
95
125
mA
*Unless otherwise noted, all measurements performed as upconverter, IF= 1 GHz, LO = 4 dBm
1
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price,2 delivery,
andDrive,
to place
orders: AnalogMA
Devices,
For price,
delivery
andDevices
to place
orders:
Hittite
Microwave
Elizabeth
Chelmsford,
01824Inc.,
responsibility
is assumed
by Analog
for its use,
nor for any
infringements
of patents orCorporation,
other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373
Order
at www.hittite.com
Phone: On-line
781-329-4700
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC798LC4
v04.0614
GaAs MMIC SUB-HARMONIC
SMT MIXER, 24 - 34 GHz
-6
CONVERSION GAIN (dB)
-4
-6
-8
-10
-12
-14
-16
-18
-14
+25 C
+85 C
-40 C
-16
-20
24
25
26
27 28 29 30 31
FREQUENCY (GHz)
32
33
34
35
23
24
25
26
27 28 29 30 31
FREQUENCY (GHz)
32
33
34
35
32
33
34
35
32
33
34
35
LE
23
Conversion Gain vs. LO Drive, LSB
-4
Isolations
0
-6
2LO/RF
2LO/IF
LO/RF
IF/RF
LO/IF
-10
-8
-10
-12
-14
-16
B
SO
CONVERSION GAIN (dB)
-12
-18
-20
6 dBm
4 dBm
2 dBm
-18
-20
23
24
25
26
27 28 29 30 31
FREQUENCY (GHz)
32
33
34
-20
-30
-40
-50
-60
-70
35
23
24
22
22
20
20
IIP3 (dBm)
24
18
16
6 dBm
4 dBm
2 dBm
14
24
25
26
27 28 29 30 31
FREQUENCY (GHz)
Input IP3 vs. Temperature
O
Input IP3 vs. LO Drive
IIP3 (dBm)
-10
TE
+25 C
+85 C
-40 C
-8
MIXERS - SUB-HARMONIC - SMT
Conversion Gain vs. Temperature, USB
-4
ISOLATION (dB)
CONVERSION GAIN (dB)
Conversion Gain vs. Temperature, LSB
18
16
+25 C
+85 C
-40 C
14
12
12
10
10
23
24
25
26
27 28 29 30 31
FREQUENCY (GHz)
32
33
34
35
23
24
25
26
27 28 29 30 31
FREQUENCY (GHz)
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price,2 delivery,
andDrive,
to place
orders: AnalogMA
Devices,
For price,
delivery
andDevices
to place
orders:
Hittite
Microwave
Elizabeth
Chelmsford,
01824Inc.,
responsibility
is assumed
by Analog
for its use,
nor for any
infringements
of patents orCorporation,
other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373
Order
at www.hittite.com
Phone: On-line
781-329-4700
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
2
HMC798LC4
v04.0614
GaAs MMIC SUB-HARMONIC
SMT MIXER, 24 - 34 GHz
75
70
70
65
65
IIP2 (dBm)
80
75
60
55
55
+25 C
+85 C
-40 C
50
45
45
40
40
24
25
26
27 28 29 30 31
FREQUENCY (GHz)
32
33
Input P1dB vs. Temperature, LSB
18
34
35
23
24
25
26
27 28 29 30 31
FREQUENCY (GHz)
32
33
34
35
LE
23
Input P1dB vs. Temperature, USB
18
16
16
14
14
10
8
B
SO
12
6
2
0
24
25
26
27
28
29
30
31
FREQUENCY (GHz)
32
33
12
10
8
6
+25 C
+85 C
-40 C
4
2
0
O
24
-6
CONVERSION GAIN (dB)
-4
-6
-10
-12
-14
1000 MHz
2000 MHz
3750 MHz
-16
-18
25
26
27
28
29
30
31
FREQUENCY (GHz)
32
33
34
Conversion Gain vs. IF Frequency, USB
-4
-8
+25 C
+85 C
-40 C
4
34
Conversion Gain vs. IF Frequency, LSB
CONVERSION GAIN (dB)
60
TE
6 dBm
4 dBm
2 dBm
P1dB (dBm)
IIP2 (dBm)
Input IP2 vs. Temperature
80
50
P1dB (dBm)
MIXERS - SUB-HARMONIC - SMT
Input IP2 vs. LO Drive
-8
-10
-12
-14
1000 MHz
2000 MHz
3750 MHz
-16
-18
-20
-20
23
24
25
26
27 28 29 30 31 32
RF FREQUENCY (GHz)
33
34
35
23
24
25
26
27 28 29 30 31 32
RF FREQUENCY (GHz)
33
34
35
* Two-tone input power = 0 dBm each tone, 1 MHz spacing.
3
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price,2 delivery,
andDrive,
to place
orders: AnalogMA
Devices,
For price,
delivery
andDevices
to place
orders:
Hittite
Microwave
Elizabeth
Chelmsford,
01824Inc.,
responsibility
is assumed
by Analog
for its use,
nor for any
infringements
of patents orCorporation,
other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373
Order
at www.hittite.com
Phone: On-line
781-329-4700
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC798LC4
v04.0614
GaAs MMIC SUB-HARMONIC
SMT MIXER, 24 - 34 GHz
0
0
-4
-4
-12
+25 C
+85 C
-40 C
-16
-12
-16
-20
-20
1
2
3
FREQUENCY (GHz)
4
0
-5
B
SO
-10
+25 C
+85 C
-40 C
-20
-25
-30
9
10
11
12 13 14 15 16
FREQUENCY (GHz)
24
26
28
30
32
34
FREQUENCY (GHz)
36
38
40
17
18
19
20
mIF
2
-3
68
-2
nLO
1
0
53
71
66
-1
0
49
32
0
1
31
1
1
45
31
2
54
66
65
3
66
IF = 2 GHz @ -10 dBm
LO = 15 GHz @ 4 dBm
All values in dBc below IF power level (2LO - 1IF)
Measured as upconverter
O
8
22
MxN Spurious Outputs
@ RF Port, Vdd = 5V
LO Return Loss
-15
20
5
LE
0
RETURN LOSS (dB)
-8
TE
-8
25 C
85 C
-40 C
MIXERS - SUB-HARMONIC - SMT
RF Return Loss
RETURN LOSS (dB)
RETURN LOSS (dB)
IF Return Loss
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price,2 delivery,
andDrive,
to place
orders: AnalogMA
Devices,
For price,
delivery
andDevices
to place
orders:
Hittite
Microwave
Elizabeth
Chelmsford,
01824Inc.,
responsibility
is assumed
by Analog
for its use,
nor for any
infringements
of patents orCorporation,
other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373
Order
at www.hittite.com
Phone: On-line
781-329-4700
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
4
HMC798LC4
v04.0614
GaAs MMIC SUB-HARMONIC
SMT MIXER, 24 - 34 GHz
+13 dBm
LO Drive (Vdd = +5V)
+10 dBm
Vdd
5.5V
Channel Temperature
175 °C
Continuous Pdiss (Ta = 85 °C)
(derate 8.33 mW/°C above 85 °C)
0.75 mW
Thermal Resistance
(junction to ground paddle)
119 °C/W
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
TE
RF / IF Input (Vdd = +5V)
B
SO
LE
Outline Drawing
O
MIXERS - SUB-HARMONIC - SMT
Absolute Maximum Ratings
NOTES:
1. PACKAGE BODY MATERIAL: ALUMINA.
2. LEAD AND GROUND PADDLE PLATING: GOLD FLASH OVER 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.
Package Information
Part Number
Package Body Material
Lead Finish
HMC798LC4
Alumina, White
Gold over Nickel
MSL Rating
MSL3
[1]
Package Marking [2]
H798
XXXX
[1] Max peak reflow temperature of 260 °C
[2] 4-Digit lot number XXXX
5
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price,2 delivery,
andDrive,
to place
orders: AnalogMA
Devices,
For price,
delivery
andDevices
to place
orders:
Hittite
Microwave
Elizabeth
Chelmsford,
01824Inc.,
responsibility
is assumed
by Analog
for its use,
nor for any
infringements
of patents orCorporation,
other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373
Order
at www.hittite.com
Phone: On-line
781-329-4700
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC798LC4
v04.0614
GaAs MMIC SUB-HARMONIC
SMT MIXER, 24 - 34 GHz
Pin Descriptions
Description
Interface Schematic
1, 4, 6, 7, 9,
12 - 14, 16, 18,
19, 24
GND
These pins and package bottom must be
connected to RF/DC ground.
2, 3, 10, 17,
20 - 23
N/C
No connection required. The pins are not connected internally;
however, all data shown herein was measured with these pins
connected to RF/DC ground externally.
5
IF
This pin is DC coupled and should be DC blocked externally using
a series capacitor whose value has been chosen to pass the
necessary IF frequency range. Any applied DC voltage to this pin
will result in die non-function and possible die failure.
8
RF
This pin is DC coupled
and matched to 50 Ohms.
11
Vcc
Power supply for the LO Amplifier.
15
LO
This pin is DC blocked
and matched to 50 Ohms.
LE
B
SO
O
MIXERS - SUB-HARMONIC - SMT
Function
TE
Pin Number
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price,2 delivery,
andDrive,
to place
orders: AnalogMA
Devices,
For price,
delivery
andDevices
to place
orders:
Hittite
Microwave
Elizabeth
Chelmsford,
01824Inc.,
responsibility
is assumed
by Analog
for its use,
nor for any
infringements
of patents orCorporation,
other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373
Order
at www.hittite.com
Phone: On-line
781-329-4700
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
6
HMC798LC4
v04.0614
GaAs MMIC SUB-HARMONIC
SMT MIXER, 24 - 34 GHz
O
B
SO
LE
TE
MIXERS - SUB-HARMONIC - SMT
Evaluation PCB
List of Materials for Evaluation PCB 126601 [1]
Item
Description
J1 - J3
PCB Mount SMA RF Connector
J2, J3
PCB Mount SRI K Connector
J4, J5
DC Pin
C1
100 pF Capacitor, 0402 Pkg.
C2
10,000 pF Capacitor, 0603 Pkg.
C3
4.7 µF Tantalum Capacitor, Case A
U1
HMC798LC4 Mixer
PCB [2]
126598 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
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 connected
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 board should be mounted to an
appropriate heat sink. The evaluation circuit board
shown is available from Hittite upon request.
[2] Circuit Board Material: Arlon 25FR or Rogers 4350
7
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price,2 delivery,
andDrive,
to place
orders: AnalogMA
Devices,
For price,
delivery
andDevices
to place
orders:
Hittite
Microwave
Elizabeth
Chelmsford,
01824Inc.,
responsibility
is assumed
by Analog
for its use,
nor for any
infringements
of patents orCorporation,
other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373
Order
at www.hittite.com
Phone: On-line
781-329-4700
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC798LC4
v04.0614
GaAs MMIC SUB-HARMONIC
SMT MIXER, 24 - 34 GHz
MIXERS - SUB-HARMONIC - SMT
O
B
SO
LE
TE
Notes:
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price,2 delivery,
andDrive,
to place
orders: AnalogMA
Devices,
For price,
delivery
andDevices
to place
orders:
Hittite
Microwave
Elizabeth
Chelmsford,
01824Inc.,
responsibility
is assumed
by Analog
for its use,
nor for any
infringements
of patents orCorporation,
other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373
Order
at www.hittite.com
Phone: On-line
781-329-4700
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
8
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