MICROWAVE CORPORATION
12 - 42
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 - SMT
12
HMC208MS8
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 0.7 - 2.0 GHz
v01.0801
General Description
Features
Functional Diagram
Ultra Small Package: MSOP8
Conversion Loss: 9 dB
LO / RF Isolation: 24 dB
IP3 (Input): +17 dBm
Electrical Specifi cations,
T
A
= +25 C, As a Function of LO Drive
Typical Applications
The HMC208MS8 is ideal for:
Base Stations
PCMCIA Transceivers
Cable Modems
Portable Wireless
The HMC208MS8 is an ultra miniature double-
balanced mixer in an 8 lead plastic surface mount
package (MSOP). This passive MMIC mixer is
constructed of GaAs Schottky diodes and novel
planar transformer baluns on the chip. The device
can be used as an upconverter, downconverter,
biphase (de)modulator, or phase comparator.
The consistent MMIC performance will improve
system operation and assure regulatory compli-
ance.
Parameter
LO = +13 dBm
IF = 70 MHz
LO = +10 dBm
IF = 70 MHz
Units
Min.
Typ.
Max.
Min.
Typ.
Max.
Frequency Range, RF & LO
0.7 - 2.0
0.8 - 1.2
GHz
Frequency Range, IF
DC - 0.5
DC - 0.5
GHz
Conversion Loss
9
10.5
8.5
10.5
dB
Noise Figure (SSB)
9
10.5
8.5
10.5
dB
LO to RF Isolation
20
24
32
40
dB
LO to IF Isolation
13
17
22
30
dB
RF to IF Isolation
10
14
17
22
dB
IP3 (Input)
13
17
12
16
dBm
1 dB Gain Compression (Input)
7
10
5
8
dBm
MICROWAVE CORPORATION
12 - 43
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 - SMT
12
-20
-15
-10
-5
0
0.5
1
1.5
2
2.5
CONVERSION LOSS (dB)
FREQUENCY (GHz)
-40 C
+25 C
+85 C
-60
-50
-40
-30
-20
-10
0
0.5
1
1.5
2
2.5
ISOLATION (dB)
FREQUENCY (GHz)
RF/IF
LO/RF
LO/IF
Conversion Loss vs
Temperature @ LO = +13 dBm
Isolation @ LO = +13 dBm
-20
-15
-10
-5
0
0.5
1
1.5
2
2.5
CONVERSION LOSS (dB)
FREQUENCY (GHz)
+7 dBm
+9 dBm
+15 dBm
+13 dBm
+11 dBm
Conversion Loss vs. LO Drive
v01.0801
-25
-20
-15
-10
-5
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
CONVERSION LOSS (dB)
IF FREQUENCY (GHz)
Return Loss @ LO = +13 dBm
IF Bandwidth @ LO = +13 dBm
P1dB vs.
Temperature @ LO = +13 dBm
-20
-15
-10
-5
0
0
0.5
1
1.5
2
2.5
RETURN LOSS (dB)
FREQUENCY (GHz)
LO
RF
IF
9
9.5
10
10.5
11
11.5
0.3
0.5
0.7
0.9
1.1
1.3
1.5
P1dB (dBm)
FREQUENCY (GHz)
-40 C
+25 C
+85 C
HMC208MS8
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 0.7 - 2.0 GHz
MICROWAVE CORPORATION
12 - 44
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 - SMT
12
Input IP3 vs.
Temperature @ LO = +13 dBm
14
15
16
17
18
19
20
0.6
0.8
1
1.2
1.4
1.6
1.8
THIRD ORDER INTERCEPT (dBm)
LO FREQUENCY (GHz)
+13 dBm
+9 dBm
+11 dBm
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 0.7 - 2.0 GHz
v01.0801
HMC208MS8
Input IP2 vs.
Temperature @ LO = +13 dBm
Input IP3 vs. LO Drive
Input IP2 vs. LO Drive
MxN Spurious Outputs
Harmonics of LO
15.5
16
16.5
17
17.5
18
18.5
19
19.5
0.6
0.8
1
1.2
1.4
1.6
1.8
THIRD ORDER INTERCEPT (dBm)
LO FREQUENCY (GHz)
-40C
+85C
+25C
30
35
40
45
50
55
60
65
0.6
0.8
1
1.2
1.4
1.6
1.8
SECOND ORDER INTERCEPT (dBm)
LO FREQUENCY (GHz)
+13 dBm
+9 dBm
+11 dBm
40
45
50
55
60
65
0.6
0.8
1
1.2
1.4
1.6
1.8
SECOND ORDER INTERCEPT (dBm)
LO FREQUENCY (GHz)
-40C
+85C
+25C
nLO
mRF
0
1
2
3
4
0
xx
2
25
17
45
1
16
0
52
38
27
2
60
55
72
62
77
3
65
96
88
64
91
4
>105
>105
>105
100
>105
RF = 0.9 GHz @ -10 dBm
LO = 0.97 GHz @ +13 dBm
All values in dBc relative to the IF
LO Freq.
(GHz)
nLO Spur at RF Port
1
2
3
4
0.7
50
40
47
61
0.9
46
54
56
71
1.1
39
54
51
72
1.3
34
53
51
90
1.5
31
50
65
87
1.7
28
50
72
82
LO = +13 dBm
Values in dBc below input LO level measured at RF Port.
MICROWAVE CORPORATION
12 - 45
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 - SMT
12
Outline Drawing
Absolute Maximum Ratings
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 0.7 - 2.0 GHz
v01.0801
HMC208MS8
RF / Input
+13 dBm
LO Drive
+27 dBm
Storage Temperature
-65 to +150 C
Operating Temperature
-40 to +85 C
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEADFRAME MATERIAL: COPPER ALLOY
3. LEADFRAME PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
7. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
MICROWAVE CORPORATION
12 - 46
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 - SMT
12
v01.0801
HMC208MS8
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 0.7 - 2.0 GHz
Evaluation PCB
List of Material
Item
Description
J1 - J3
PC Mount SMA RF Connector
U1
HMC208MS8 Mixer
PCB*
101828 Evaluation Board
* Circuit Board Material: Rogers 4350
The circuit board used in the fi nal application should
use RF circuit design techniques. Signal lines should
have 50 ohm impedance while the package ground
leads should be connected directly to the ground
plane similar to that shown. A suffi cient number of VIA
holes should be used to connect the top and bottom
ground planes. The evaluation circuit board shown is
available from Hittite upon request.
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