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MAX2021ETX-T

High-Dynamic-Range, Direct Up-/Downconversion 650MHz to 1200MHz Quadrature Mod/Demod

Maxim Integrated 

MAX2021

High-Dynamic-Range, Direct Up-/Downconversion

650MHz to 1200MHz Quadrature Mod/Demod

AC ELECTRICAL CHARACTERISTICS (Demodulator)

(MAX2021 Typical Application Circuit when operated as a demodulator, VCC = 4.75V to 5.25V, GND = 0V, I/Q outputs are recombined

using network shown in Figure 5. Losses of combining network not included in measurements. VDC for BBI+. BBI-, BBQ+, BBQ- = 0V,

PRF = PLO = 0dBm, 750MHz ≤ fLO ≤ 1200MHz, 50Ω LO and RF system impedance, R1 = 432Ω, R2 = 619Ω, R3 = 332Ω, TC = -40°C to

+85°C. Typical values are at VCC = 5V, TC = +25°C, unless otherwise noted.) (Note 6)

PARAMETER

RF INPUT

Conversion Loss

Noise Figure

Noise Figure Under-Blocking

Input Third-Order Intercept

Input Second-Order Intercept

Input 1dB Compression

I/Q Gain Mismatch

I/Q Phase Mismatch

Minimum Demodulation 3dB

Bandwidth

SYMBOL

CONDITIONS

LC

NF

NFBLOCK

IIP3

IIP2

P1dB

fBB = 25MHz (Note 11)

fLO = 900MHz

fBLOCKER = 900MHz, PRF = 11dBm,

fRF = fLO = 890MHz (Note 12)

fRF1 = 925MHz, fRF2 = 926MHz, fLO =

900MHz, PRF = PLO = 0dBm, fSPUR = 24MHz

fRF1 = 925MHz, fRF2 = 926MHz, fLO =

900MHz, PRF = PLO = 0dBm, fSPUR = 51MHz

fIF = 50MHz, fLO = 900MHz, PLO = 0dBm

fBB = 1MHz, fLO = 900MHz, PLO = 0dBm

fBB = 1MHz,

fLO = 900MHz

PLO = 0dBm

PLO = -3dBm

LO = 1160MHz LO > RF

MIN TYP MAX UNITS

9.2

dB

9.3

dB

17.8

dB

35.2

dBm

76

30

0.06

1.1

0.15

> 550

dBm

dBm

dB

Degrees

MHz

Minimum 1dB Gain Flatness

LO = 1160MHz LO > RF

> 450

MHz

AC ELECTRICAL CHARACTERISTICS (Demodulator LO = 965MHz)

(Typical Application Circuit when operated as a demodulator. I/Q outputs are recombined using network shown in Figure 5. Losses of

combining network not included in measurements. RF and LO ports are driven from 50Ω sources. Typical values are for TA = +25°C,

VCC = 5.0V, I/Q DC voltage return = 0V, PRF = 0dBm, PLO = 0dBm, fRF = 780MHz, fLO = 965MHz, fIF = 185MHz, unless otherwise noted.)

PARAMETER

Conversion Loss

Noise Figure

Noise Figure Under Blocking

Input Third-Order Intercept

Point

SYMBOL

Lc

NFSSB

NFBLOCK

CONDITIONS

fBLOCKER = 700MHz, PBLOCKER = 11dBm,

fLO = 965MHz, fRF = 865MHz, (Note 12)

fRF1 = 780MHz, fRF2 = 781MHz,

PRF1 = PRF2 = 0dBm, fIF1 = 185MHz,

fIF2 = 184MHz

IIP3

fRF1 = 780MHz, fRF2 = 735MHz,

PRF1 = PRF2 = 0dBm, fIF1 = 185MHz,

fIF2 = 230MHz

MIN TYP MAX UNITS

10.1

dB

10.4

dB

19

dB

34.5

dBm

34.6

4

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