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BALANCED MIXER. HMC285 Datasheet |
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v00.0700
MICROWAVE CORPORATION
HMC285
GaAs MMIC SMT SINGLE
BALANCED MIXER, 1.7 - 3.5 GHz
12
Typical Applications
The HMC285 is ideal for:
• PCS
• W-CDMA
• 2.4 GHz ISM
• MMDS
Functional Diagram
Features
No External Components Required
LO / RF Isolation: 30 dB
Input IP3: +20 dBm
Ultra Small SOT26 Package
General Description
The HMC285 is an ultra miniature single bal-
anced mixer in an 6 lead plastic surface mount
SOT26 package. This passive MMIC mixer is con-
structed of GaAs Schottky diodes and a novel
planar transformer balun on the chip. The RF port
is balanced via the MMIC balun while the LO
port is connected directly to the diodes. The con-
sistent MMIC performance will improve system
operation without the need for external compo-
nents. The SOT26 package is the smallest foot-
print available for a complete single-balanced
mixer, 0.118” x 0.118” (3.0mm x 3.0mm).
Electrical Specifications, TA = +25° C, As a Function of IF Frequency
Parameter
LO = +10 dBm
IF = 100 MHz
Min. Typ. Max.
LO = +10 dBm
IF = 400 MHz
Min. Typ. Max.
Frequency Range, RF & LO
2 - 3.5
1.7 - 2.8
Frequency Range, IF
DC - 0.9
DC - 0.9
Conversion Loss
9 11
9.5 11.5
Noise Figure (SSB)
9 11
9.5 11.5
LO to RF Isolation
20 30
25 35
LO to IF Isolation
11 20
14 20
IP3 (Input)
17 21
16 20
1 dB Compression (Input)
7 11
6 10
Units
GHz
GHz
dB
dB
dB
dB
dBm
dBm
12 - 108
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
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v00.0700
MICROWAVE CORPORATION
HMC285
GaAs MMIC SMT SINGLE
BALANCED MIXER, 1.7 - 3.5 GHz
Conversion Gain vs.
Temperature @ LO = +10 dBm
0
-5 -40 C
-10
-15
+25 C
-20
+85 C
-25
IF = 400 MHz
-30
1 1.5 2 2.5 3 3.5
FREQUENCY (GHz)
4
Isolation @ LO = +10 dBm
0
RF/IF
-10
-20
-30
-40
-50
-60
1
LO/IF
LO/RF
IF = 400 MHz
1.5 2 2.5 3 3.5
FREQUENCY (GHz)
4
12
Conversion Gain vs. LO Drive
0
-5
+13 dBm
-10
-15 +7 dBm
-20
+10 dBm
-25
+5 dBm
IF = 400 MHz
-30
1 1.5 2 2.5 3 3.5
FREQUENCY (GHz)
4
Conversion Gain vs. IF Frequency
0
-5 IF = 800 MHz
-10
-15
IF = 400 MHz
-20
IF = 100 MHz
-25
-30
1 1.5 2 2.5 3 3.5
FREQUENCY (GHz)
4
Return Loss @ LO = +10 dBm
0
IF = 400 MHz
-5
-10
-15
-20
-25
1
RF
LO
1.5 2 2.5 3 3.5
FREQUENCY (GHz)
4
IF Bandwidth @ LO = +10 dBm.
Conversion Gain & Return Loss
0
IF Conv. Gain
-5
-10
-15
IF Return Loss
-20
-25
0
0.5 1
FREQUENCY (GHz)
1.5
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
12 - 109
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12
v00.0700
MICROWAVE CORPORATION
HMC285
GaAs MMIC SMT SINGLE
BALANCED MIXER, 1.7 - 3.5 GHz
Input IP3 vs. LO Drive
25
24
23
22
21
20
19
18
17
16
15
1
+13 dBm
+10 dBm
+7 dBm
1.25 1.5 1.75 2 2.25 2.5 2.75
FREQUENCY (GHz)
3
Input IP2 vs. LO Drive
70
+10 dBm
60
50
40
30
20
1
+13 dBm
+7 dBm
1.25 1.5 1.75 2 2.25 2.5 2.75
FREQUENCY (GHz)
3
Input IP3 vs.
Temperature @ LO = +10 dBm
25
24
23
22
21
20
19
18
17
16
15
1
-40 C
+25 C
+85 C
1.25 1.5 1.75 2 2.25 2.5 2.75
FREQUENCY (GHz)
3
P1dB vs.
Temperature @ LO = +10 dBm
15
14
13 -40 C
12
+25 C
11
10
9
8
7
6 +85 C
5
1 1.3 1.5 1.8 2 2.2 2.5
FREQUENCY (GHz)
2.7
3
MxN Spurious Outputs
nLO
mRF
0
1
2
0
xx -12.4
1
1 10 0 38
2 59 60 61
3
>110
87
90
4
>110
>110
>110
RF = 2.6 GHz @ -10 dBm
LO = 2.2 GHz @ +10 dBm
All values in dBc relative to the IF
3
1
23
43
80
>110
4
33
43
62
88
>110
Harmonics of LO
nLO Spur at RF Port
LO Frequency (GHz)
1
2
3
4
1.5 42 17 47 47
1.7 39 16 41 44
1.9 39 15 37 44
2.1 47 16 35 45
2.3 36 18 32 48
2.5 30 21 32 50
LO = +10 dBm
Values in dBc below input LO level measured at the RF port
12 - 110
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
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