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MAX2023ETX

High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2500MHz Quadrature Mod/Demod

Maxim Integrated 

High-Dynamic-Range, Direct Up-/Downconversion

1500MHz to 2500MHz Quadrature Mod/Demod

AC ELECTRICAL CHARACTERISTICS (Demodulator, LO = 1850MHz)

(MAX2023 Typical Application Circuit when operated as a demodulator, VCC = 4.75V to 5.25V, GND = 0V, VDC for BBI+, BBI-, BBQ+,

BBQ- = 0V, 50Ω LO and RF system impedance, R1 = 432Ω, R2 = 562Ω, R3 = 301Ω, TC = -40°C to +85°C. Typical values are at

VCC = 5V, PRF = 0dBm, fBB = 1MHz, PLO = 0dBm, fLO = 1850MHz, TC = +25°C, unless otherwise noted.)

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

RF INPUT

Conversion Loss

Noise Figure

fBB = 25MHz

9.5

dB

9.6

dB

Noise Figure Underblocking

Conditions

fBLOCKER = 1950MHz, PBLOCKER = +11dBm,

fRF = 1850MHz (Note 10)

20.3

dB

Input Third-Order Intercept

Point

fRF1 = 1875MHz, fRF2 = 1876MHz, fLO = 1850MHz,

PRF = PLO = 0dBm, fIM3 = 24MHz

38

dBm

Input Second-Order Intercept fRF1 = 1875MHz, fRF2 = 1876MHz, fLO = 1850MHz,

Point

PRF = PLO = 0dBm, fIM2 = 51MHz

59

dBm

Input 1dB Compression Point

I/Q Gain Mismatch

I/Q Phase Mismatch

fBB = 25MHz

fBB = 1MHz

fBB = 1MHz

29.7

0.025

0.56

dBm

dB

Degrees

AC ELECTRICAL CHARACTERISTICS (Demodulator, LO = 2350MHz)

(MAX2023 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 TC = +25°C, VCC = 5V, I/Q DC returns = 160Ω resistors to GND, PRF = 0dBm, PLO = 0dBm, fRF = 2140MHz, fLO = 2350MHz,

fIF = 210MHz, unless otherwise noted.)

PARAMETER

Conversion Loss

Noise Figure

Input Third-Order Intercept Point

SYMBOL

LC

NFSSB

IIP3

CONDITIONS

fRF1 = 2135MHz,

fRF2 = 2140MHz,

PRF1 = PRF2 = 0dBm,

fIF1 = 215MHz,

fIF2 = 210MHz

MIN TYP MAX UNITS

10.9

dB

11

dB

31.5

dBm

Input Second-Order Intercept

Point

LO Leakage at RF Port

LO Leakage at I/Q Ports

Gain Compression

I/Q Gain Mismatch

I/Q Phase Mismatch

RF Port Return Loss

fRF1 = 2135MHz,

fRF2 = 2140MHz,

IIP2

PRF1 = PRF2 = 0dBm,

fIF1 = 215MHz,

fIF2 = 210MHz,

fIM2nd = 425MHz

PRF = 21dBm

C9 = 2pF

65

-50

-38

0.17

0.025

0.6

13

dBm

dBm

dBm

dB

dB

Degrees

dB

4

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