SiGe, High-Linearity, 2000MHz to 3900MHz

Downconversion Mixer with LO Buffer

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9

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

90

3LO-3RF Spur Rejection

3 x 3

80

dBc

RF Input Return Loss

LO on and IF terminated into a matched

impedance

22

dB

LO Input Return Loss

RF and IF terminated into a matched

impedance

16.3

dB

IF Output Impedance

Nominal differential impedance at the IC’s

IF outputs

200

Ω

L1 = L2 =

120nH

25

L1 = L2 =

270nH

25

IF Output Return Loss

RF terminated into 50

Ω, LO

driven by 50

Ω source, IF

transformed to 50

Ω using

external components

shown in the Typical

Application Circuit; see the

Typical Operating

Characteristics for

performance vs. inductor

values

L1 = L2 =

390nH

25

dB

RF-to-IF Isolation

26.6

dB

LO Leakage at RF Port

-38

dBm

2LO Leakage at RF Port

-13.5

dBm

LO Leakage at IF Port

-27

dBm

HIGH-SIDE LO INJECTION (continued)

(

are guaranteed by design and not production tested.) (Note 6)

Note 5: Not production tested. Operation outside this range is possible, but with degraded performance of some parameters. See

the

Typical Operating Characteristics.

former. Output measurements were taken at IF outputs of the

Typical Application Circuit.

Note 7: 100% production tested for functional performance.

Note 8: Measured with external LO source noise filtered so that 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 Application Note 2021:

Specifications and

Measurement of Local Oscillator Noise in Integrated Circuit Base Station Mixers.

Note 9: Maximum reliable continuous input power applied to the RF port of this device is +12dBm from a 50

Ω source.