Load Insensitive Mixer
Rev. V4
SM4TH
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
• India Tel: +91.80.4155721 • China Tel: +86.21.2407.1588
Visit www.macomtech.com for additional data sheets and prod uct information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
1 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Features
• LO 1 TO 3400 MHz
• RF 1 TO 3400 MHz
• IF 1 TO 2000 MHz
• LO DRIVE: +23 dBm (NOMINAL)
• INSENSITIVE TO SYSTEM MISMATCH
• HIGH INTERCEPT: +29 dBm (TYP.)
• AVAILABLE IN SURFACE MOUNT
• +260° C REF LOW COMPATIBLE
Description
The SM4TH is a termination insensitive mixer, designed for use in mili-
tary, commercial and test equipment applications. The design utilizes
Schottky bridge quad diodes, broadband fe rrite baluns and internal loads
to provide excellent performance without degradation due to external
VSWR mismatches. Environmental screening available to MIL-STD-883,
MIL-STD-202, or MIL-DTL-28837, consult factory.
Ordering Information
Part Number Package
SM4TH Surface Mount
Electrical Specifications: Z0 = 50Ω Lo = +23 dBm (Downconverter application only)
Parameter Test Conditions Units Typical Guaranteed
+25ºC -54º to +85ºC
SSB Conversion Loss
(max) & SSB Noise
Figure (max)
fR = 0.005 to 2.0 GHz, fL = 0.005 to 2.0 GHz, fI = 0.001 to 0.5 GHz
fR = 0.001 to 3.4 GHz, fL = 0.001 to 3.4 GHz , fI = 0.001 to 2.0 GHz dB
dB
7.0
9.0
8.0
10.5 8.5
11.0
Isolation, L to R (min) fL = 0.01 to 1.5 GHz
fL = 0.01 to 3.4 GHz dB
dB 35
35 30
22 29
21
Isolation, L to I (min) fL = 0.01 to 1.5 GHz
fL = 0.01 to 3.4 GHz dB
dB 40
35 30
25 29
24
Isolation, R to I (min) fR = 0.001 to 3.4 GHz dB 21
1 dB Conversion Comp. fL= +23 dBm dBm +17
Input IP3 fR1 = 2 GHz at 0 dBm, fR2 = 2.01 GHz at 0 dBm,
fL = 1.9 GHz at +23 dBm dBm +29
Product Image
Load Insensitive Mixer
Rev. V4
SM4TH
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
• India Tel: +91.80.4155721 • China Tel: +86.21.2407.1588
Visit www.macomtech.com for additional data sheets and prod uct information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Typical Performance Curves Outline Drawing: Surface Mount *
Weight: 2 grams (0.07 oz.) max.
∗ Dimensions are inches (millimeters) ±0.015 (0.38) unless otherwise specified.
Absolute Maximum Ratings
Parameter Absolute Maximum
Operating Temperature -54ºC to +100ºC
Storage Temperature -65ºC to +100ºC
Peak Input Power +27 dBm max @ +25ºC
+23 dBm max @ +100ºC
Peak Input Current 50 mA DC
