HMC265
v02.1007
GaAs MMIC SUB-HARMONICALLY
PUMPED DOWNCONVERTER, 20 - 32 GHz
Typical Applications
The HMC265 is ideal for:
• Microwave Point-to-Point Radios
Features
Integrated LO Amplifier: -4 dBm Input
Sub-Harmonically Pumped (x2) LO
Integrated IF Amplifier: 3 dB Gain
Small Size: 1.32 x 1.32 x 0.1 mm
3
MIXERS - SUB-HARMONIC - CHIP
• LMDS
• SATCOM
Functional Diagram
General Description
The HMC265 chip is a sub-harmonically pumped (x2)
MMIC downconverter with integrated LO & IF amplifi-
ers. The chip utilizes a GaAs PHEMT technology that
results in a small overall chip area of 1.74 mm
2
. The
2LO to RF isolation is excellent eliminating the need
for additional filtering. The LO amplifier is a single
bias (+3V to +4V) two stage design with only -4 dBm
nominal drive requirement. All data is with the chip in
a 50 ohm test fixture connected via 0.025 mm (1 mil)
diameter wire bonds of minimal length <0.31 mm (<12
mils). This downconverter IC is an excellent, smaller,
and more reliable replacement to hybrid diode based
downconverter MMIC assemblies.
Electrical Specifi cations,
T
A
= +25° C, LO Drive = -4 dBm
Parameter
Min.
Frequency Range, RF
Frequency Range, LO
Frequency Range, IF
Conversion Gain (RF to IF)
Noise Figure (SSB)
2LO to RF Isolation
2LO to IF Isolation
IP3 (Input)
1 dB Compression (Input)
Supply Current (Idd)
17
40
2
-5
-2
IF = 1 GHz
Vdd = +4V
Typ.
20 - 32
10 - 16
0.7 - 3.0
3
13
20 ~ 40
50 ~ 60
10
2
50
67
28
45
9
-2
7
-2
Max.
Min.
IF = 1 GHz
Vdd = +4V
Typ.
27 - 30
13.5 - 15
0.7 - 3.0
2
13
35
55
13
2
50
67
5
Max.
GHz
GHz
GHz
dB
dB
dB
dB
dBm
dBm
mA
Units
3 - 22
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
HMC265
v02.1007
GaAs MMIC SUB-HARMONICALLY
PUMPED DOWNCONVERTER, 20 - 32 GHz
Conversion Gain vs. Temperature
@ LO = -4 dBm Vdd = +4V
10
5
0
-5
-10
-15
-20
18
20
22
24
26
28
30
32
34
RF FREQUENCY (GHz)
+25C
+85C
-55C
Conversion Gain vs. Temperature
@ LO = -4 dBm Vdd = +3V
10
5
0
-5
-10
-15
-20
18
20
22
24
26
28
30
32
34
RF FREQUENCY (GHz)
CONVERSION GAIN (dB)
CONVERSION GAIN (dB)
3
MIXERS - SUB-HARMONIC - CHIP
3 - 23
+25C
+85C
-55C
Conversion Gain vs. LO Drive
@ Vdd = +4V
10
5
0
-5
-10
-15
-20
18
20
22
24
26
28
30
32
34
RF FREQUENCY (GHz)
-8 dBm
-6 dBm
-4 dBm
-2 dBm
0 dBm
Conversion Gain vs. LO Drive
@ Vdd = +3V
10
5
0
-5
-10
-15
-20
18
20
22
24
26
28
30
32
34
RF FREQUENCY (GHz)
+25C
+85C
-55C
CONVERSION GAIN (dB)
Isolation @ LO = -4 dBm, Vdd = +4V
10
0
-10
ISOLATION (dB)
-20
-30
-40
-50
-60
2LO/IF
-70
18
20
22
24
26
28
30
32
34
RF FREQUENCY (GHz)
RF/IF
2LO/RF
LO/IF
LO/RF
Isolation @ LO = -4 dBm, Vdd = +3V
10
0
-10
ISOLATION (dB)
-20
-30
-40
-50
LO/IF
-60
-70
18
20
22
24
26
28
30
32
34
RF FREQUENCY (GHz)
2LO/IF
RF/IF
2LO/RF
LO/RF
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
CONVERSION GAIN (dB)
HMC265
v02.1007
GaAs MMIC SUB-HARMONICALLY
PUMPED DOWNCONVERTER, 20 - 32 GHz
Input P3 vs. Temperature
@ LO = -4 dBm, Vdd = +4V
20
18
16
14
IP3 (dBm)
12
10
8
6
-6 dBm
-4 dBm
-2 dBm
-55C
+25C
+85C
Input P3 vs. LO Drive @ Vdd = +4V
20
18
16
IP3 (dBm)
3
MIXERS - SUB-HARMONIC - CHIP
14
12
10
8
6
4
2
0
18
20
22
24
26
28
30
32
34
RF FREQUENCY (GHz)
4
2
0
18
20
22
24
26
28
30
32
34
RF FREQUENCY (GHz)
LO & RF Return Loss
@ LO = -4 dBm, Vdd = +4V
0
IF Return Loss
@ LO = -4 dBm, Vdd = +4V
0
RETURN LOSS (dB)
-10
RETURN LOSS (dB)
-5
-5
-10
IF
-15
LO
RF
-15
-20
0
5
10
15
20
25
30
35
40
FREQUENCY (GHz)
-20
0
1
2
3
4
5
6
FREQUENCY (GHz)
Input P1dB vs. Temperature
@ LO = -4 dBm, Vdd = +4V
3
2
1
P1dB (dBm)
0
-1
-2
-3
-4
-5
18
20
22
24
26
28
30
32
34
RF FREQUENCY (GHz)
+25C
-55C
+85C
IF Bandwidth @ LO = -4 dBm
10
IF CONVERSION GAIN (dB)
5
0
-5
-10
-15
-20
0
1
2
3
4
5
6
IF FREQUENCY (GHz)
Vdd = +4V
Vdd = +3V
3 - 24
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
HMC265
v02.1007
GaAs MMIC SUB-HARMONICALLY
PUMPED DOWNCONVERTER, 20 - 32 GHz
Absolute Maximum Ratings
RF / IF Input (Vdd = +4V)
LO Drive (Vdd = +4V)
Vdd
Storage Temperature
Operating Temperature
+13 dBm
+13 dBm
+5.5 Vdc
-65 to +150 °C
-55 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
3
MIXERS - SUB-HARMONIC - CHIP
NOTES:
1. ALL DIMENSIONS ARE IN INCHES [MM].
2. DIE THICKNESS IS .004”.
3. TYPICAL BOND PAD IS .004” SQUARE.
4. BOND PAD SPACING CENTER TO CENTER IS .006”.
5. BACKSIDE METALLIZATION: GOLD.
6. BOND PAD METALLIZATION: GOLD.
7. BACKSIDE METAL IS GROUND.
8. CONNECTION NOT REQUIRED FOR UNLABELED BOND PADS.
Outline Drawing
Die Packaging Information
[1]
Standard
GP-2 (Gel Pack)
Alternate
[2]
[1] Refer to the “Packaging Information” section for die
packaging dimensions.
[2] For alternate packaging information contact Hittite
Microwave Corporation.
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
3 - 25
HMC265
v02.1007
GaAs MMIC SUB-HARMONICALLY
PUMPED DOWNCONVERTER, 20 - 32 GHz
Pad Descriptions
Pad Number
Function
Description
Interface Schematic
3
MIXERS - SUB-HARMONIC - CHIP
1
Vdd
Power supply for the LO Amplifier. An external RF bypass
capacitor of 100 - 330 pF is required. A MIM border capacitor
is recommended. The bond length to the capacitor should be
as short as possible. The ground side of the capacitor should
be connected to the housing ground.
2
RF
This pad is AC coupled
and matched to 50 Ohm.
3
IF
This pad is AC coupled
and matched to 50 Ohm.
4
LO
This pad is AC coupled
and matched to 50 Ohm.
3 - 26
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
stm32/stm8
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