MICROWAVE CORPORATION
5 - 2
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MIXERS - CHIP
5
HMC128
GaAs MMIC DOUBLE-BALANCED
MIXER, 1.8 - 5.0 GHz
v02.0802
General Description
Features
Functional Diagram
Conversion Loss: 7 dB
LO to RF and IF Isolation: >36 dB
Input IP3: +18 dBm
Small Size, No DC Bias Required
Electrical Specifi cations,
T
A
= +25 C, LO Drive = +15 dBm
Typical Applications
The HMC128 is a miniature double-balanced
mixer chip that can be used as an upconverter
or downconverter. The device is a passive diode/
balun type mixer with high dynamic range. Noise
fi gure is essentially equal to the conversion loss.
The mixer can handle larger signal levels than
active mixers due to the high third order inter-
cept. MMIC implementation provides exceptional
balance in the circuit resulting in high LO/RF and
LO/IF isolations. This mixer can operate over a
wide LO Drive input of +9 to +15 dBm.
The HMC128 is ideal for:
Microwave & VSAT Radios
Test Equipment
Military EW, ECM, C
3
I
Space Telecom
Parameter
Min.
Typ.
Max.
Units
Frequency Range, RF & LO
1.8 - 5.0
GHz
Frequency Range, IF
DC - 3.0
GHz
Conversion Loss
7
10
dB
Noise Figure (SSB)
7
10
dB
LO to RF Isolation
35
42
dB
LO to IF Isolation
27
36
dB
IP3 (Input)
15
18
dBm
IP2 (Input)
45
50
dBm
1 dB Gain Compression (Input)
5
10
dBm
* Unless otherwise noted, all measurements performed as downconverter, IF = 100 MHz
MICROWAVE CORPORATION
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MIXERS - CHIP
5
Conversion Gain vs. LO Drive
v02.0802
HMC128
GaAs MMIC DOUBLE-BALANCED
MIXER, 1.8 - 5.0 GHz
-20
-15
-10
-5
0
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
+ 25 C
+ 85 C
- 55 C
CONVERSION GAIN (dB)
FREQUENCY (GHz)
Conversion Gain vs . Temperature
@ LO = +15 dBm
Isolation @ LO = +15 dBm
-60
-50
-40
-30
-20
-10
0
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
RF/IF
LO/RF
LO/IF
Isolation (dB)
Frequency (GHz)
-20
-15
-10
-5
0
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
+ 9 dBm
+ 11 dBm
+ 13 dBm
+ 15 dBm
CONVERSION GAIN (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
RF
LO
FREQUENCY (GHz)
RETURN LOSS (dB)
LO and RF Return Loss
IF Bandwidth @ LO = +15 dBm
Upconverter Performance
Conversion Gain vs. LO Drive
-20
-15
-10
-5
0
0
1
2
3
4
5
IF CONVERSION LOSS
IF RETURN LOSS
FREQUENCY (GHz)
RESPONSE (dB)
-20
-15
-10
-5
0
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
+ 9 dBm
+ 11 dBm
+ 13 dBm
+ 15 dBm
FREQUENCY (GHz)
CONVERSION GAIN (dB)
MICROWAVE CORPORATION
5 - 4
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MIXERS - CHIP
5
Input IP2 vs LO Drive
v02.0802
HMC128
GaAs MMIC DOUBLE-BALANCED
MIXER, 1.8 - 5.0 GHz
Input IP3 vs. LO Drive
Input IP3 vs. Temperature
@ LO = +15 dBm
10
15
20
25
30
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
+ 11 dBm
+ 13 dBm
+ 15 dBm
INPUT IP3 (dBm)
FREQUENCY (GHz)
10
15
20
25
30
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
+ 25 C
+ 85 C
- 55 C
INPUT IP3 (dBm)
FREQUENCY (GHz)
40
45
50
55
60
65
70
75
80
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
+ 11 dBm
+ 13 dBm
+ 15 dBm
INPUT IP2 (dBm)
FREQUENCY (GHz)
40
45
50
55
60
65
70
75
80
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
+ 25 C
+ 85 C
- 55 C
INPUT IP2 (dBm)
FREQUENCY (GHz)
7
8
9
10
11
12
13
14
15
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
+ 25 C
+ 85 C
- 55 C
P1dB (dBm)
Frequency (GHz)
Input IP2 vs. Temperature
@ LO = +15 dBm
Input P1dB vs. Temperature
@ LO = +15 dBm
MICROWAVE CORPORATION
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MIXERS - CHIP
5
Absolute Maximum Ratings
v02.0802
HMC128
GaAs MMIC DOUBLE-BALANCED
MIXER, 1.8 - 5.0 GHz
LO Drive
+27 dBm
Storage Temperature
-65 to +150 C
Operating Temperature
-55 to +85 C
Harmonics of LO
MxN Spurious @ IF Port
nLO
mRF
0
1
2
3
4
0
xx
5.6
30.3
11.1
34.5
1
2.8
0
23.3
31.5
29.1
2
62.3
58.6
57.8
60.3
75.8
3
74.3
>85
74.3
65.8
74.3
4
>85
>85
>85
>85
>85
RF Freq.= 3.5 GHz @ -10 dBm
LO Freq.= 3.4 GHz @ +13 dBm
All values in dBc below IF power level.
Measured as downconverter
nLO Spur @ RF Port
LO Freq. (GHz)
1
2
3
4
1.5
54
42
54
54
2.0
48
41
50
66
2.5
47
41
44
76
3.5
40
50
52
75
4.5
40
60
51
65
5.5
38
60
46
63
LO = +13 dBm
All values in dBc below input LO level measured at RF port.
MICROWAVE CORPORATION
5 - 6
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MIXERS - CHIP
5
v02.0802
HMC128
GaAs MMIC DOUBLE-BALANCED
MIXER, 1.8 - 5.0 GHz
NOTES:
1. ALL DIMENSIONS ARE IN INCHES [MM]
2. BOND PADS ARE .004" SQUARE
3. TYPICAL BOND PAD SPACING CENTER TO CENTER
IS .006" EXCEPT AS SHOWN
4. DIE THICKNESS = .004" [.100 MM]
5. BACKSIDE METALIZATION: GOLD
6. BACKSIDE METAL IS GROUND
7. BOND PAD METALIZATION: GOLD
Outline Drawing
Pad Number
Function
Description
Interface Schematic
1
LO
This pin is DC coupled and matched to 50 Ohm
from 1.8 to 5.0 GHz.
2
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 2mA of current or die non-
function and possible die failure will result.
3
RF
This pin is DC coupled and matched to 50 Ohm
from 1.8 to 5.0 GHz.
GND
The backside of the die must connect to RF ground.
Pad Descriptions
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