HMC258LM3
v01.1201
GaAs MMIC SUB-HARMONIC
SMT MIXER, 14 - 20 GHz
Typical Applications
The HMC258LM3 is ideal for:
• 14 and 20 GHz Microwave Radios
Features
Integrated LO Amplifier: 0 dBm Input
Sub-Harmonically Pumped (x2) LO
High 2LO/RF Isolation: > 40 dB
LM3 SMT Package
8
MIXERS - SUB-HARMONIC - SMT
• Point to Point Radios
• VSAT and SATCOM
Functional Diagram
General Description
The HMC258LM3 is a 14 - 20 GHz surface mount
sub-harmonically pumped (x2) MMIC mixer with an
integrated LO amplifier in a SMT leadless chip car-
rier package. The 2LO to RF isolation is an excellent
40 dB, eliminating the need for additional filtering.
The LO amplifier is a single bias (+5V) two stage
design with only 0 dBm drive requirement. All data is
with the non-hermetic, epoxy sealed LM3 packaged
device mounted in a 50 ohm test fixture. Utilizing the
HMC258LM3 eliminates the need for wirebonding,
thereby providing a consistent connection interface
for the customer.
Electrical Specifi cations,
T
A
= +25° C, LO Drive = 0 dBm
Parameter
Min.
Frequency Range, RF
Frequency Range, LO
Frequency Range, IF
Conversion Loss
Noise Figure (SSB)
2LO to RF Isolation
2LO to IF Isolation
IP3 (Input)
1 dB Compression (Input)
Supply Current (Idd)
33
33
0
-5
IF = 1 GHz
Vdd = +5.0V
Typ.
14 - 20
7 - 10.5
DC - 3
10
10
40
45
7
0
50
14
14
Max.
GHz
GHz
GHz
dB
dB
dB
dB
dBm
dBm
mA
Units
*Unless otherwise noted, all measurements performed as downconverter, IF= 1 GHz.
8-8
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
HMC258LM3
v01.1201
GaAs MMIC SUB-HARMONIC
SMT MIXER, 14 - 20 GHz
Conversion Gain vs.
Temperature @ LO = 0 dBm
0
Conversion Gain vs. LO Drive
0
LO = -4dBm +25C
LO = -2dBm +25C
LO = 0 dBm +25C
LO = +2dBm +25C
LO = +4dBm +25C
CONVERSION GAIN (dB)
CONVERSION GAIN (dB)
-5
-5
-10
-10
8
MIXERS - SUB-HARMONIC - SMT
8-9
-15
+25C
-40C
+85C
-15
-20
-20
-25
13
14
15
16
17
18
19
20
21
RF FREQUENCY (GHz)
-25
13
14
15
16
17
18
19
20
21
RF FREQUENCY (GHz)
Isolation @ LO = 0 dBm
10
0
-10
RF/IF
LO/IF
LO/RF
RF & LO Return Loss @ LO = 0 dBm
0
-20
-30
-40
-50
-60
13
14
15
16
17
18
19
20
21
RF FREQUENCY (GHz)
2LO/RF 2LO/IF
RETURN LOSS (dB)
-10
ISOLATION (dB)
-20
-30
LO
RF
-40
0
5
10
15
20
25
FREQUENCY (GHz)
IF Bandwidth @ LO = 0 dBm
0
IF Return Loss @ LO = 0 dBm
0
IF CONVERSION GAIN (dB)
-5
RETURN LOSS (dB)
0
1
2
3
4
5
6
-10
-10
-20
-15
-30
-20
-25
IF FREQUENCY (GHz)
-40
0
1
2
3
4
5
6
IF FREQUENCY (GHz)
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
HMC258LM3
v01.1201
GaAs MMIC SUB-HARMONIC
SMT MIXER, 14 - 20 GHz
Input IP3 vs. LO Drive *
20
15
INPUT IP3 (dBm)
Input IP2 vs. LO Drive *
60
50
INPUT IP2 (dBm)
40
30
20
10
0
-2 dBm
0 dBm
+2 dBm
8
MIXERS - SUB-HARMONIC - SMT
10
5
0
-5
-10
13
15
17
19
21
23
RF FREQUENCY (GHz)
-2 dBm
0 dBm
+2 dBm
13
15
17
19
21
23
RF FREQUENCY (GHz)
Input P1dB
6
Upconverter Performance
Conversion Gain @ LO = 0 dBm
0
2
CONVERSION GAIN (dB)
14
15
16
17
18
19
20
21
22
4
INPUT P1dB (dBm)
-5
-10
0
-15
-2
-20
-4
RF FREQUENCY (GHz)
-25
13
14
15
16
17
18
19
20
21
RF FREQUENCY (GHz)
MxN Spurious Outputs@ LO = 0 dBm
nLO
mRF
-3
-2
-1
0
1
2
3
74
51
68
35
45
69
26
58
50
15
34
X
82
82
-16
52
54
9
68
±5
±4
±3
±2
±1
0
RF = 18 GHz @ -10 dBm
LO = 8.5 GHz @ 0 dBm
All values in dBc below IF power level.
* Two-tone input power = -10 dBm each tone, 1 MHz spacing.
8 - 10
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
HMC258LM3
v01.1201
GaAs MMIC SUB-HARMONIC
SMT MIXER, 14 - 20 GHz
Absolute Maximum Ratings
RF / IF Input (Vdd = +5V)
LO Drive (Vdd = +5V)
Vdd
Continous Pdiss (Ta = 85 °C)
(derate 4.28 mW/°C above 85 °C)
Storage Temperature
Operating Temperature
+13 dBm
+13 dBm
+5.5V
386 mW
-65 to +150 °C
8
MIXERS - SUB-HARMONIC - SMT
8 - 11
-40 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
1. MATERIAL: PLASTIC
2. PLATING: GOLD OVER NICKEL
3. DIMENSIONS ARE IN INCHES [MILLIMETERS].
4. ALL TOLERANCES ARE ± 0.005 [± 0.13].
5. ALL GROUNDS MUST BE SOLDERED TO PCB RF GROUND.
6.
•
INDICATES PIN 1
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
HMC258LM3
v01.1201
GaAs MMIC SUB-HARMONIC
SMT MIXER, 14 - 20 GHz
Pin Description
Pin Number
1, 2
Function
N/C
Description
This pin may be connected to the housing
ground or left unconnected.
Power Supply for the LO Amplifier. An external RF bypass
capacitor of 100 - 330 pF is required as close to the package
as possible.
IF Port. 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 pos-
sible die failure.
RF Port. This pin is AC coupled and matched to
50 Ohm from 4 - 20 GHz.
LO Port. This pin is AC coupled and matched to
50 Ohm from 7 - 10 GHz.
Must be soldered to PCB RF ground.
Interface Schematic
8
MIXERS - SUB-HARMONIC - SMT
3
Vdd
4
IF
5
RF
6
LO
7
GND
8 - 12
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
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