HSMS-282x Family: for < 500 MHz HSMS-820x Family: for > 500 MHz HSCH-530x Family: for > 1 GHz HSCH-9xx1 Family: for microwave and millimeter wave HSCH-9401: for microwave and millimeter wave

HSMS-281x Family: for low 1/f @ <1 GHz 5082-2303: for low 1/f @ >1 GHz

Alternatives:

Features:

Key Parameters:

Frequency range (f):

SMT packages cover kHz to 12 GHz

Noise Figure (NF):

6.5 - 7.5 dB (approximately equal to the insertion loss of the mixer)

R_s and C_j combine to influence noise figure

R_s must be low (5 - 7 )

C_j must be low (<1pF for use to 1 GHz, < 0.5 pF for use above 1 GHz)

C_j is 0.25 pF for HSMS-820x: good as mixer to 12 GHz!

Intercept point (IP3):

based on LO drive level

Markets:

Mixer Diode Terms

Frequency range (f)

:

What:

the frequency range over which a Schottky diode can make a useful mixer.

Goodness:

needs to match the requirements of the application.

Barrier height

What:

The term "Barrier height" is related to the voltage required for a given current in a Schottky barrier diode. Low voltage corresponds to low barrier height. Barrier height also sets V_f, the voltage at which the diode starts to clip.

Goodness:

depends on application - the V_f must match the desired clipping voltage.

Third Order Intercept Point (IP3)

What:

An indication of the amount of power that can be input into a mixer without causing distortion. Output intercept point quotes the output power level at which the third order intermodulation product curve intersects the Pout vs. Pin curve, in dBm. Input intercept point references this level to the input of the mixer by subtracting the mixer gain.

Goodness:

higher is better.

Noise figure (NF)

What:

Noise figure is a measure of the noise (low level distortion) added to the signal by a mixer.

Goodness:

lower is better.