Page 1
MICROWAVE CORPORATION
HIGH IP3 SINGLE-BALANCED MIXER 0.6 - 1.2 GHz
HMC350MS8
4
MIXERS
FEBRUARY 2001
Features
CONVERSION LOSS: 7.5 dB
INPUT IP3: +27 dBm
INPUT IP2: +45 dBm
INPUT P1dB: +17 dBm
V00.1200
General Description
The HMC350MS8 is a miniature single balanced
mixer in an 8 lead plastic surface mount package. The passive GaAs schottky diode mixer
implements planar on chip Baluns and requires
no external components. The mixer can be used
as an upconverter, down converter, or modulator. It is especially suited for cellular base
station, cable modem, and fixed wireless access systems that operate between 600 and
1200 MHz. The mixer provides 7.5 dB conversion loss and +25 dBm IIP3 with LO drive levels
of +19 dBm at mid-band. The design was optimized for low cost high volume applications
where high converter linearity is required.
SMT
Guaranteed Performance, LO Drive= +19 dBm, -40 to +85 deg C
retemaraP
.niM .pyT .xaM
OL&FR,egnaRycneuqerF 2.1-6.0zHG
FI,egnaRycneuqerF 3.0-CDzHG
ssoLnoisrevnoC0.1-8.0OL/FR
2.1-6.0OL/FR
)BSS(erugiFesioN 5.701Bd
noitalosIFRotOL 9122Bd
noitalosIFIotOL 58 Bd
noitalosIFIotFR 4181Bd
)tupnI(3PI 4272mBd
)tupnI(2PI 0454mBd
)tupnI(noisserpmoCniaGBd1 4171mBd
leveLevirDrotallicsOlacoL 12mBd
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
5.7
8
zHM001=FI,mBd91+=OL
01
21
4 - 210
stinU
Bd
Page 2
MICROWAVE CORPORATION
HIGH IP3 SINGLE-BALANCED MIXER 0.6 - 1.2 GHz
HMC350MS8
V00.1200
Conversion Gain vs.
Temperature @ LO= +19 dBm
0
-5
-10
-15
CONVERSION GAIN (dB)
-20
0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
FREQUENCY (GHz)
Conversion Gain vs. LO Drive
0
+21 d Bm
-10
-5
+17 dBm
+19 dBm
+25C
-40C
+85C
Isolation @ LO = +19 dBm
0
-10
-20
-30
-40
ISOLATION(dB)
-50
-60
0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
FREQUENCY (GHz)
Return Loss @ LO = +19 dBm
0
-5
-10
FEBRUARY 2001
RF/IF
LO/RF
LO/IF
4
MIXERS
-15
CONVERSION GAIN (dB)
-20
0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
+15 dBm
+11 dBm
FREQUENCY (GHz)
+13 dBm
RETURN LOSS (dB)
-15
-20
0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
FREQUENCY (GHz)
RF
LO
Upconverter Performance,
IF Bandwidth @ LO = +19 dBm
0
RETURN LOSS
CONVERSION GAIN
-5
-10
RESPONSE(dB)
-15
-20
0 0.10.20.30.40.50.60.70.80.9 1
IF FREQUENCY (GHz)
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
Conversion Gain @ LO = +19 dBm
0
-5
-10
-15
CONVERSION GAIN (dB)
-20
0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
FREQUENCY(GHz)
4 - 211
SMT
Page 3
MICROWAVE CORPORATION
HIGH IP3 SINGLE-BALANCED MIXER 0.6 - 1.2 GHz
HMC350MS8
4
MIXERS
SMT
FEBRUARY 2001
V00.1200
Input IP2 vs. LO DriveInput IP3 vs. LO Drive
34
32
30
28
IP3 (dBm)
26
24
22
0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4
LO = + 17dBm
LO = + 19dBm
LO = + 21dBm
FREQUENCY (GHz)
70
65
60
55
50
IP2 (dBm)
45
40
35
30
0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4
LO = + 17dBm
LO = + 19dBm
LO = + 21dBm
FREQUENCY (GHz)
Input IP3 vs. Temperature
@ LO Drive = +19 dBm P1dB vs. Temperature @ LO= +19 dBm
34
32
30
28
IP3 (dBm)
26
24
22
0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4
-40C
+25C
+85C
FREQUENCY (GHz)
26
25
24
23
22
21
20
19
P1dB (dBm)
18
17
16
15
0.7 0.8 0.9 1 1.1 1.2
+25 C
-40C
+85 C
FREQUENCY(GHz)
MXN Spurious Outputs
OLn
FRm 0 1 2 3 4
0xx82-3-61
1410738392
28595361528
37858587717
449>49>49>29>67
mBd01-@zHG1=FR
mBd91@zHG9.0=OL
.levelrewoptuptuoFIehtotevitalercBdniseulavllA
Harmonics of LO
)zHG(ycneuqerFOL
6.082513634
57.042610664
9.022818464
50.132028425
2.162222595
53.182627536
mBd91+=OL
troPFRtarupSOLn
1 2 3 4
tropFRehttaderusaemlevelOLtupniwolebcBdniseulaV
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
4 - 212
Page 4
MICROWAVE CORPORATION
HIGH IP3 SINGLE-BALANCED MIXER 0.6 - 1.2 GHz
HMC350MS8
V00.1200
Schematic
LO
(PIN 1
)
IF (PIN 5
Outline Drawing
RF
(PIN 8
)
GND
(PINS 2, 3, 4, 7)
)
FEBRUARY 2001
Absolute Maximum Ratings
tupnIFI/FRmBd72+
evirDOLmBd72+
erutarepmeTegarotSCged051+ot56-
erutarepmeTgnitarepOCged58+ot55-
tnerruCCDFIAm81±
4
MIXERS
1. MATERIAL:
A) PACKAGE BODY - LOW STRESS INJECTION-MOLDED PLASTIC,
SILICA & SILICONE IMPREGNATED.
B) LEADFRAME MATERIAL: COPPER ALLOY
2 . PLATING : LEAD - TIN SOLDER PLATE
3. DIMENSIONS ARE IN INCHES (MILLIMETERS).
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
UNLESS OTHERWISE SPECIFIED ALL TOL. ARE ±0.005 (±0.13).
4. ALL UNLABELED LEADS ARE GROUND.
5. CHARACTERS TO BE HELVETICA MEDIUM, APPROX .030 HIGH
WHITE INK, LOCATED APPROXIMATELY AS SHOWN.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15 MM PER SIDE
7. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25 MM PER SIDE
4 - 213
SMT
Page 5
MICROWAVE CORPORATION
HIGH IP3 SINGLE-BALANCED MIXER 0.6 - 1.2 GHz
HMC350MS8
4
MIXERS
FEBRUARY 2001
Evaluation PCB for HMC350MS8
V00.1200
The circuit board used in the final 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
SMT
that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. The
evaluation circuit board as shown is available from Hittite upon request.
Evaluation Circuit Board
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3J,2J,1JFRAMStnuoMCProtcennoC
1UrexiM8SM053CMH
*
BCP
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
4 - 214
828101
draoBlavE
0534sregoR:lairetaMdraoBtiucriC*
Page 6
MICROWAVE CORPORATION
HIGH IP3 SINGLE-BALANCED MIXER 0.6 - 1.2 GHz
HMC350MS8
V00.1200
NOTES:
FEBRUARY 2001
4
MIXERS
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
4 - 215
SMT
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