LT5579 datasheet(3/20 Pages) LINER

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LT5579

5579f

AC ELECTRICAL CHARACTERISTICS V

CC = 3.3V, TA = 25°C, PRF = –5dBm (–5dBm/tone for 2-tone tests,

Δf = 1MHz), PLO = –1dBm, unless otherwise noted. Test circuits are shown in Figure 1. (Notes 2, 3)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IF Input Return Loss

ZO = 50Ω, External Match

LO Input Return Loss

ZO = 50Ω, 1100MHz to 4000MHz

RF Output Return Loss

ZO = 50Ω, External Match

>10

LO Input Power

–5 to 2

dBm

VCC = 3.3V, TA = 25°C, PRF = –5dBm (–5dBm/tone for 2-tone tests, Δf = 1MHz), PLO = –1dBm, unless otherwise noted.

Low side LO for 1750MHz and 3600MHz. High side LO for 2140MHz and 2600MHz. (Notes 2, 3, 4)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Conversion Gain

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

1.8

2.6

1.3

–0.5

Conversion Gain vs Temperature

(TA = –40°C to 85°C)

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

–0.020

–0.027

dB/°C

Output 3rd Order Intercept

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

27.3

26.2

23.2

dBm

Output 2nd Order Intercept

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

dBm

Single Sideband Noise Figure

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

9.2

9.9

Output Noise Floor (POUT = –5dBm)

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

–159.5

–158.1

–157.5

–155.5

dBm/Hz

Output 1dB Compression

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

13.3

13.9

13.7

10.7

dBm

IF to LO Isolation

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

LO to IF Leakage

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

–23

–28

–26

–22

dBm

LO to RF Leakage

fIF = 240MHz, fRF = 1750MHz

fIF = 240MHz, fRF = 2140MHz

fIF = 456MHz, fRF = 2600MHz

fIF = 456MHz, fRF = 3600MHz

–39

–35

–36

–35

dBm

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: Each set of frequency conditions requires appropriate matching

(see Figure 1).

Note 3: The LT5579 is guaranteed to meet speciﬁed performance from

–40°C to 85°C

Note 4: SSB noise ﬁgure measurements performed with a small-signal

noise source and bandpass ﬁlter on LO signal generator. No other IF signal

applied.

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