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MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

Maxim Integrated 

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

+5.0V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS

(continued)

(Typical Application Circuit optimized for the standard RF band (see Table 1), VCC = 4.75V to 5.25V, RF and LO ports are driven

from 50Ω sources, PLO = -3dBm to +3dBm, PRF = -5dBm, fRF = 2300MHz to 2900MHz, fLO = 1950MHz to 2550MHz, fIF = 350MHz,

fRF > fLO, TC = -40°C to +85°C. Typical values are at VCC = 5.0V, PRF = -5dBm, PLO = 0dBm, fRF = 2600MHz, fLO = 2250MHz,

fIF = 350MHz, TC = +25°C, unless otherwise noted.) (Note 7)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

IF Output Impedance

ZIF

Nominal differential impedance at the IC’s

IF outputs

200

Ω

IF Output Return Loss

RF terminated into 50Ω, LO driven by 50Ω

source, IF transformed to 50Ω using

external components shown in the Typical

20

dB

Application Circuit

RF-to-IF Isolation

LO Leakage at RF Port

2LO Leakage at RF Port

LO Leakage at IF Port

(Notes 8, 9)

23.5

dB

-31

-24

dBm

-27

dBm

-9.6

dBm

Channel Isolation

RFMAIN (RFDIV) converted power

measured at IFDIV (IFMAIN) relative to

IFMAIN (IFDIV), all unused ports terminated

38.5

42

dB

to 50Ω (Notes 8, 9)

+3.3V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS

(Typical Application Circuit optimized for the standard RF band (see Table 1). Typical values are at VCC = 3.3V, PRF = -5dBm,

PLO = 0dBm, fRF = 2600MHz, fLO = 2250MHz, fIF = 350MHz, TC = +25°C, unless otherwise noted.) (Note 7)

PARAMETER

Conversion Gain

Conversion Gain Flatness

Gain Variation Over Temperature

Input Compression Point

Third-Order Input Intercept Point

Third-Order Input Intercept

Variation Over Temperature

Noise Figure

Noise Figure Temperature

Coefficient

SYMBOL

GC

TCCG

IP1dB

IIP3

CONDITIONS

(Note 9)

fRF = 2305MHz to 2360MHz

fRF = 2500MHz to 2570MHz

fRF = 2570MHz to 2620MHz

fRF = 2500MHz to 2690MHz

fRF = 2700MHz to 2900MHz

fRF = 2300MHz to 2900MHz,

TC = -40°C to +85°C

fRF1 - fRF2 = 1MHz, PRF = -5dBm per tone

fRF1 - fRF2 = 1MHz, TC = -40°C to +85°C

NFSSB

TCNF

Single sideband, no blockers present

Single sideband, no blockers present,

TC = -40°C to +85°C

MIN TYP MAX UNITS

8.5

dB

0.2

0.15

0.15

dB

0.25

0.15

-0.01

dB/°C

7.7

dBm

19.7

dBm

±0.5

dBm

9.7

dB

0.018

dB/°C

Maxim Integrated

7

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