SiGe High-Linearity, 815MHz to 1000MHz

Downconversion Mixer with LO Buffer/Switch

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3

Note 1: All limits include external component losses. Output measurements taken at IF output of the Typical Application Circuit.

Note 2: Operation outside this range is possible, but with degraded performance of some parameters.

Note 3: Compression point characterized. It is advisable not to operate continuously the mixer RF input above +12dBm.

Note 4: Measured with external LO source noise filtered so the noise floor is -174dBm/Hz. This specification reflects the effects of all

SNR degradations in the mixer, including the LO noise as defined in Maxim Application Note 2021.

Note 5: Guaranteed by design and characterization.

AC ELECTRICAL CHARACTERISTICS (continued)

+25°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Noise Figure

NF

10

dB

+8dBm

20

Noise Figure Under-Blocking

(Note 4)

+11dBm

23

dB

+8dBm

0.18

Small-Signal Compression

Under-Blocking Condition

+11dBm

0.4

dB

LO Drive

-3

+3

dBm

69

2 x 2

2LO - 2RF

64

88

Spurious Response at IF

3 x 3

3LO - 3RF

78

dBc

LO2 selected

42

49

LO1-to-LO2 Isolation

LO1 selected

42

50

dB

LO Leakage at RF Port

-45

dBm

LO Leakage at IF Port

-33

dBm

RF-to-IF Isolation

54

dB

LO Switching Time

50% of LOSEL to IF settled to within 2

°

50

ns

RF Port Return Loss

20

dB

LO1/2 port selected,

LO2/1 and IF terminated

22

LO Port Return Loss

LO1/2 port unselected,

LO2/1 and IF terminated

34

dB

IF Port Return Loss

LO driven at 0dBm, RF terminated into 50

Ω,

differential 200

Ω

22

dB