MAX2021 datasheet(8/15 Pages) MAXIM

8 / 15 page

700MHz to 1200MHz High-Linearity,

SPI-Controlled DVGA with Integrated Loopback Mixer

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MIXER OUTPUT RETURN LOSS

vs. RF FREQUENCY (MIXER DISABLED)

RF FREQUENCY (MHz)

700

800

900

1000

1100

1200

TC = +85

°C

TC = +25

°C

TC = +5

°C

TC = -40

°C

MIXER OUTPUT RETURN LOSS

vs. RF FREQUENCY (MIXER DISABLED)

RF FREQUENCY (MHz)

700

800

900

1000

1100

1200

VCC = 4.75V, 5.0V, 5.25V

LO RETURN LOSS vs. LO FREQUENCY

(MIXER ENABLED)

LO FREQUENCY (MHz)

050

100

150

200

TC = -40

°C

TC = +5

°C

TC = +25

°C

TC = +85

°C

LO RETURN LOSS vs. LO FREQUENCY

(MIXER ENABLED)

LO FREQUENCY (MHz)

150

100

200

VCC = 4.75V, 5.0V, 5.25V

ATTEN A ONLY

GAIN vs. RF FREQUENCY

RF FREQUENCY (MHz)

1000

1100

900

800

-30

-20

-10

-40

700

1200

ATTEN A ONLY

GAIN vs. RF FREQUENCY

(NMT 450MHz BAND)

RF FREQUENCY (MHz)

500

550

350

400

450

-30

-20

-10

-40

300

ATTEN A ONLY

ABS ACCURACY vs. RF FREQUENCY

RF FREQUENCY (MHz)

1100

1000

900

800

700

-1.0

-1.5

-0.5

1.0

0.5

1.5

2.0

-2.0

1200

ATTEN A ONLY

ABS ACCURACY vs. RF FREQUENCY

(NMT 450MHz BAND)

RF FREQUENCY (MHz)

550

500

450

400

350

-1.0

-0.5

0.5

1.0

1.5

2.0

-2.0

-1.5

300

ATTEN A ONLY

REL ACCURACY vs. RF FREQUENCY

RF FREQUENCY (MHz)

1000

900

700

800

-0.5

0.5

1.0

-1.0

1200

1100

Typical Operating Characteristics (continued)

(MAX2058

Typical Application Circuit, VCC = +4.75V to +5.25V, digital attenuators set for maximum gain, 700MHz ≤ fRF ≤ 1200MHz,

40MHz ≤ fLO ≤ 100MHz, TC = -40°C to +85°C. Typical values are at VCC = 5.0V, PIN = 0dBm, fRF = 940MHz, fLO = 45MHz, fLBOUT =

fRF - fLO, and TC = +25°C, unless otherwise noted.)

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