SPM-2045 View Datasheet(PDF) - Stanford Microdevices

Part Name

Description

Manufacturer

SPM-2045

High Linearity Passive FET Mixer

Stanford Microdevices 

Preliminary Data Sheet

SPM-2045 High Linearity Mixer

Product Specifications: Up-converter

Test Conditions: FLO = 1.8GHz FIF = 150MHz Frf = 1.95GHZ Plo = 17dBm

Parameters

Test Conditions

Unit

Min.

RF Output Frequency Range

GHz

1.7

LO Frequency

GHz

1.7

IF Input Frequency

MHz

40

RF Return Loss

Frf = 1.9GHz

dB

LO Return Loss

Flo = 1.7GHz

dB

IF Return Loss

Fif=200 MHz

dB

Conversion Loss

TOI (Input)

Plo=14dBm

dBm

Plo=17dBm

dBm

Plo=20dBm

dBm

P1dB (input)

Plo=17dBm

dBm

Typ.

14

5

14

8

23

27

30

20

Max.

2.3

2.3

300

10

Absolute Maximum Ratings

Parameters

Value

Unit

RF Input

+15

dBm

LO Input

+21

dBm

IF Input

+15

dBm

Operating Temperature

-40 to +85

ºC

Storage Temperature

-65 to +150

ºC

Operation of this device beyond any one of these limits may

cause permanent damage. For reliable continuous operation the

device voltage and current must not exceed the maximum oper-

ating values specified in the table on page one.

Caution: ESD Sensitive

Appropriate precaution in handling, packaging

and testing devices must be observed.

The SPM-2045 mixer is a MOSFET based high performance mixer designed for high linearity frequency conversion in the

2GHz band. This mixer features a wide latitude in LO power requirements. Conversion loss remains quite constant between

10dBm and 20dBm of LO power. Third Order Intercept is approximately proportional to the LO drive. This means that this

mixer can be used to replace a wide variety of mixers requiring a variety of LO powers.

The graphs on the following pages illustrate the performance of the SPM-2045 over a variety of operating conditions. In

order to duplicate these performance tests, the following precautions should be observed:

-The mixer should be presented with good return losses at all ports by using isolators or attenuators. This is especially true

of the LO port, because of the poor return loss of this port. If ripple is seen in a frequency sweep, it is likely due to reflections

caused by poor VSWR in a cable leading up to the device.

-The presence of harmonics in the LO can cause changes in TOI.

-Be aware that signals of many different frequencies exist at the output of the mixer, and any one can potentially cause the

spectrum analyzer to generate intermod.

-When measuring TOI, make sure the two generators supplying the RF signal are not interacting, causing intermod them-

selves.

522 Almanor Ave., Sunnyvale, CA 94085

Phone: (800) SMI-MMIC

2

http://www.sirenza.com

EDS102972 Rev A

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