Load Insensitive Mixer

Rev. V5

SM4T

1

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Features

 LO 1 to 3400 MHz

 RF 1 to 3400 MHz

 IF 1 to 2000 MHz

 LO Drive +10 dBm (nominal)

 Insensitive to VSWR Mismatch

 High Intercept +18 dBm typical

 RoHS* Compliant and 260°C Reflow Compatible

Description

The SM4T is a termination insensitive mixer,

designed for use in military, commercial and test

equipment applications.

The design utilizes

Schottky bridge quad diodes, broadband ferrite

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

SM4T

Surface Mount

* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.

Product Image

Parameter

Test Conditions

Units

Guaranteed

Typical

+25ºC

-54º to +85ºC

SSB Conversion Loss

(max)

fR = 0.005 - 1.0 GHz, fL = 0.005 - 1.0 GHz, fI = 0.001 - 0.5 GHz

fR = 0.001 - 3 GHz, fL = 0.001 - 3 GHz , fI = 0.001 - 1.5 GHz

fR = 0.001 - 3.4 GHz, fL = 0.001 - 3.4 GHz, fI = 0.001 - 2 GHz

dB

6.5

8.0

9.0

7.5

9.0

10.5

8.0

9.5

11.0

SSB Noise Figure

dB

Within 1 dB of conversion loss

Isolation, L to R (min)

fL = 0.01 - 1.5 GHz

fL = 0.01 - 3.4 GHz

dB

40

30

35

25

33

23

Isolation, L to I (min)

fL = 0.01 - 1.5 GHz

fL = 0.01 - 3.4 GHz

dB

40

30

35

25

33

23

Isolation, R to I (min)

fR = 0.001 - 3.4 GHz

dB

25

1 dB Conversion Comp.

fL= +10 dBm

dBm

+6

Input IP3

fR1 = 1.9 GHz at -10 dBm,

fR2 = 1.91 GHz at –10 dBm,

fL = 2 GHz at +10 dBm

dBm

+18

Parameter

Absolute Maximum

Operating Temperature

-54ºC to +100ºC

Storage Temperature

-65ºC to +100ºC

Peak Input Power

+27 dBm max @ +25ºC

+17 dBm max @ +100ºC

Peak Input Current

50 mA DC

Absolute Maximum Ratings