MAX2023 datasheet(4/13 Pages) MAXIM

Part #	MAX2023

Description	High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod

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Manufacturer	MAXIM [Maxim Integrated Products]

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High-Dynamic-Range, Direct Up-/Downconversion

1500MHz to 2300MHz Quadrature Mod/Demod

4

________________________________________________________________________________________________

Typical Operating Characteristics

(MAX2023

Typical Application Circuit, VCC = +4.75V to +5.25V, GND = 0V, I/Q differential inputs driven from a 100

Ω DC-coupled source

(modulator), VBBI = VBBQ = 2.6VP-P differential (modulator), PRF = +6dBm (demodulator), I/Q differential output drives 50

Ω differential load

(demodulator), 0V common-mode input/output, PLO = 0dBm, 1500MHz ≤ fLO ≤ 2300MHz, 50

Ω LO and RF system impedance, R1 = 432Ω,

R2 = 562

Ω, R3 = 300Ω, TC = -40°C to +85°C. Typical values are at VCC = +5V, fLO = 1850MHz, TC = +25°C, unless otherwise noted.)

SUPPLY CURRENT vs. TEMPERATURE (TC)

TEMPERATURE (

°C)

-40

-15

10

35

60

85

200

220

240

260

280

300

320

340

360

380

400

VCC = 4.75V

VCC = 5.25V

VCC = 5V

MODULATOR SINGLE-SIDEBAND SUPPRESSION

vs. LO FREQUENCY

LO FREQUENCY (GHz)

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

20

25

30

35

40

45

50

55

60

65

70

PLO = -3dBm

PLO = 0dBm

PLO = +3dBm

MODULATOR SINGLE-SIDEBAND SUPPRESSION

vs. LO FREQUENCY

LO FREQUENCY (GHz)

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

20

25

30

35

40

45

50

55

60

65

70

VCC = 4.75V

VCC = 5V

VCC = 5.25V

MODULATOR SINGLE-SIDEBAND SUPPRESSION

vs. LO FREQUENCY

LO FREQUENCY (GHz)

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

20

25

30

35

40

45

50

55

60

65

70

TC = +85

°C

TC = +25

°C

TC = -40

°C

MODULATOR OUTPUT IP3

vs. LO FREQUENCY

LO FREQUENCY (GHz)

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

10

12

14

16

18

20

22

24

26

28

30

TC = +85

°C

TC = +25

°C

TC = -40

°C

f1 = 1.8MHz

f2 = 1.9MHz

MODULATOR OUTPUT IP3

vs. LO FREQUENCY

LO FREQUENCY (GHz)

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

10

12

14

16

18

20

22

24

26

28

30

VCC = 4.75V, 5V, 5.25V

f1 = 1.8MHz

f2 = 1.9MHz

Note 1: TC is the temperature on the exposed paddle.

Note 2: Guaranteed by production test.

Note 3: VI/Q = 2.66VP-P differential CW input.

Note 4: No baseband drive input. Measured with the baseband inputs terminated in 50

Ω. At low output power levels, the output

noise density is equal to the thermal noise floor. See Output Noise Density vs. Output Power plots in

Typical Operating

Characteristics.

Note 5: The output noise vs. POUT curve has the slope of LO noise (Ln dBc/Hz) due to reciprocal mixing. Measured at 10MHz offset

from carrier.

Note 6: The LO noise (L = 10(Ln/10)), determined from the modulator measurements can be used to deduce the noise figure under-

blocking at operating temperature (TP in Kelvin), fBLOCK = 1 + (LCN - 1) TP / TO + LPBLOCK / (1000kTO), where TO = 290K,

PBLOCK in mW, k is Boltzmann’s constant = 1.381 x 10(-23) J/K, and LCN = 10(LC/10), LC is the conversion loss. Noise figure

underblocking in dB is NFBLOCK = 10 x log (fBLOCK). Refer to Application Note 3632.

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