Low Cost MMIC Mixer
800 - 1000 MHz
MAMXSS0012
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
V1
1
RoHS
Compliant
Features
•Input Power @ 1 dB Compression: +15 dBm
•High LO to RF Isolation: 35 dB
•LO Drive Level: +3 to +8 dBm
•DC - 200 MHz 3 dB IF Bandwidth
•Does not require DC bias
•Lead-Free SOT-25 Package
•100% Matte Tin Plating over Copper
•Halogen-Free “Green” Mold Compound
•260°C Reflow Compatible
•RoHS* Compliant Version of MD54-0005
Description
M/A-COM’s MAMXSS0012 is a passive mixer that
achieves the performance of a double balanced
diode mixer in a lead-free SOT-25 package. The
MAMXSS0012 is ideally suited for use where high
level RF signals and very wide dynamic range are
required. Typical applications include frequency up/
down conversion, modulation, and demodulation in
receivers and transmitters for base station and
portable systems.
The MAMXSS0012 employs GaAs FETs as mixing
elements to achieve a very wide dynamic range in a
low cost plastic package. The mixer operates with
LO drive levels of +3 dBm to +8 dBm. The LO port
may be externally tuned for operation in various
frequency bands.
M/A-COM's GaAs IC is fabricated using a mature
0.5 micron gate length GaAs MESFET process. The
process features full passivation for increased
performance and reliability.
Part Number
Package
MAMXSS0012 Bulk Packaging
MAMXSS0012TR-3000 3000 piece reel
MAMXSS0012SMB Designers Kit
Ordering Information
Note: Reference Application Note M513 for reel size
information.
Functional Schematic
Pin Configuration
Pin No. Function Pin No. Function
1 LO 4 RF
2 Ground 5 IF
3 Ground
Ref.
Designation
LO = 840 MHz LO = 900 MHz
R1 820 Ohms 820 Ohms
L1 22 nH 18 nH
C1 3.3 pF 4 pF
External Circuitry Parts List 1
1. All off-chip components are low-cost surface mount
components obtainable from multiple sources (0.060 in. x
0.030 in. or 0.080 in. x 0.050 in.).
3 2 1
4 5
R1
C1
L1
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
Low Cost MMIC Mixer
800 - 1000 MHz
MAMXSS0012
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
V1
2
RoHS
Compliant
Electrical Specifications: RF=900 MHz (-10 dBm), LO=840 MHz (+5 dBm), IF=60 MHz, TA = 25°C
2. With external LO Port matching. See functional schematic.
3. IMR vs. RF Drive can be calculated by the formula: IMR = 40-1.5* PIN
Parameter Test Conditions Units Min. Typ. Max.
Conversion Loss — dB — 8.0 9.0
Isolation LO to RF
LO to IF
RF to IF
dB
dB
dB
—
—
—
35
25
20
—
—
—
VSWR RF Port
LO Port2
IF Port
Ratio
Ratio
Ratio
—
—
—
2.0:1
2.0:1
2.0:1
—
—
—
Input 1 dB Compression RF Freq. = 900 MHz, LO = +5 dBm dBm — 15 —
Two-Tone IM Ratio3 Two tones at –10 dBm each,
Tone spacing = 100 KHz, IF = 60 MHz
dBc — 55 —
4. Exceeding any one or combination of these limits may cause
permanent damage to this device.
5. M/A-COM does not recommend sustained operation near
these survivability limits.
Absolute Maximum Ratings 4,5
Parameter Absolute Maximum
RF Input Power +27 dBm
Low Drive Power +27 dBm
Storage Temperature -65°C to +150°C
Operating Temperature -40°C to +85°C
4x
23.0
10.6
36.5
39.9
53.8
56.1
63.8
58.3
68.6
58.8
3x
34.1
21.3
21.6
21.8
53.9
57.6
53.4
59.3
67.3
57.2
2x
17.7
6.6
44.0
44.8
51.6
55.5
65.2
58.4
66.2
56.3
1x
14.3
4.0
0
0
57.0
57.6
63.7
56.3
67.0
56.9
0x
X
X
13.9
13.4
50.2
53.1
59.1
56.5
67.2
57.1
0x 1x 2x 3x 4x
Harmonic of RF
Spurious Table
Harmonic of LO
The spurious table shows the spurious signals resulting from the
mixing of the RF and LO input signals, assuming down
conversion. Mixing products are indicated relative to the IF. The
lower frequency mixing term is shown for two different RF input
levels. The top number is for an RF input power of 0 dBm, the
lower number is for -10 dBm.
|nFRF - mFLO |, RF = 0 dBm
|nFRF - mFLO |, RF = -10 dBm
RF Frequency = 900 MHz
LO Frequency = 840 MHz
Lead-Free SOT-25 Plastic Package†
† Reference Application Note M538 for lead-free solder reflow
recommendations.
Low Cost MMIC Mixer
800 - 1000 MHz
MAMXSS0012
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
V1
3
RoHS
Compliant
Cross Section View
Recommended PCB Configuration
Layout View
The PCB dielectric between RF traces and RF ground
layers should be chosen to reduce RF discontinuities
between 50 Ω lines and package pins. M/A-COM
recommends an FR-4 dielectric thickness of 0.008” (0.2
mm) yielding a 50 Ω line width of 0.015” (0.38 mm). The
recommended metalization is 1 oz. copper.
Typical Performance Curves
Two-Tone IMR Isolation
•Test Conditions for Down Converter Application: RF=900 MHz (-10 dBm), IF=60 MHz, LO=840 MHz (+5 dBm), LO Port match shown herein.
•Test Conditions for Up Converter Application: LO=840 MHz (+5 dBm), IF=60 MHz (-10 dBm), RF=900 MHz, LO Port match shown herein.
7.0
8.0
9.0
10.0
11.0
800 850 900 950 1000
RF Frequency (MHz)
1.0
2.0
3.0
4.0
5.0
800 850 900 950 1000
RF
LO
RF Frequency (MHz)
0
20
40
60
80
800 850 900 950 1000
RF Frequency (MHz)
RF = -10 dBm each tone
0
10
20
30
40
50
800 850 900 950 1000
LO to RF
LO t o IF
RF t o IF
RF Frequency (MHz)
Conversion Loss VSWR
