MAX2121 datasheet(7/19 Pages) MAXIM

Part #	MAX2121

Description	Complete Direct-Conversion L-Band Tuner

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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Complete Direct-Conversion L-Band Tuner

7

Typical Operating Characteristics (continued)

(MAX2121 Evaluation Kit: VCC = +3.3V, TA = +25°C, baseband output frequency = 5MHz, VGC1 = +1.2V, default register settings

except BBG[3:0] = 1011, unless otherwise noted.)

PHASE NOISE AT 10kHz OFFSET vs.

CHANNEL FREQUENCY

CHANNEL FREQUENCY (MHz)

925

1115 1305 1495 1685 1875 2065 2255

-105

-100

-95

-90

PHASE NOISE vs. OFFSET FREQUENCY

OFFSET FREQUENCY (Hz)

1.0E+05

1.0E+04

-120

-110

-100

-90

-130

1.0E+03

1.0E+06

fLO = 1800MHz

LO LEAKAGE vs. LO FREQUENCY

LO FREQUENCY (MHz)

925

1175

1425

1675

1925

2175

-90

-85

-80

-75

-70

MEASURED AT RF INPUT

VCO: KV vs. VTUNE

VTUNE (V)

0

0.5

1.0

1.5

2.0

2.5

3.0

0

50

100

150

200

250

300

350

400

450

SUB-BAND 23

SUB-BAND 12

SUB-BAND 0

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