MAX2021 datasheet(4/20 Pages) MAXIM

Part #	MAX2021

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

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Manufacturer	MAXIM [Maxim Integrated Products]

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MAX2021

High-Dynamic-Range, Direct Up-/Downconversion

650MHz to 1200MHz Quadrature Mod/Demod

4

Maxim Integrated

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RF INPUT

Conversion Loss

LC

fBB = 25MHz (Note 11)

9.2

dB

Noise Figure

NF

fLO = 900MHz

9.3

dB

Noise Figure Under-Blocking

NFBLOCK

fBLOCKER = 900MHz, PRF = 11dBm,

fRF = fLO = 890MHz (Note 12)

17.8

dB

Input Third-Order Intercept

IIP3

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

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

35.2

dBm

Input Second-Order Intercept

IIP2

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

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

76

dBm

Input 1dB Compression

P1dB

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

30

dBm

I/Q Gain Mismatch

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

0.06

dB

PLO = 0dBm

1.1

I/Q Phase Mismatch

fBB = 1MHz,

fLO = 900MHz

PLO = -3dBm

0.15

Degrees

Minimum Demodulation 3dB

Bandwidth

LO = 1160MHz LO > RF

> 550

MHz

Minimum 1dB Gain Flatness

LO = 1160MHz LO > RF

> 450

MHz

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Conversion Loss

Lc

10.1

dB

Noise Figure

NFSSB

10.4

dB

Noise Figure Under Blocking

NFBLOCK

fBLOCKER = 700MHz, PBLOCKER = 11dBm,

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

19

dB

fRF1 = 780MHz, fRF2 = 781MHz,

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

fIF2 = 184MHz

34.5

Input Third-Order Intercept

Point

IIP3

fRF1 = 780MHz, fRF2 = 735MHz,

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

fIF2 = 230MHz

34.6

dBm

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)

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 50

Ω 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.)

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