Rainbow-electronics MAX2108 Manuel d'utilisateur télécharger pdf (Page 4)

MAX2108

Direct-Conversion Tuner IC

4 _______________________________________________________________________________________

Typical Operating Characteristics

= +25°C, unless otherwise noted.)

-55 -45 -40 -35 -30-50 -25 -20 -15 -10

IM3 vs. CARRIER LEVEL

MAX2108 toc04

RF INPUT LEVEL (dBm)

IM3 (dBc)

TWO-TONE FREQUENCY

SPACING EQUALS 2MHz

950 1150 1350 1550 1750

NOISE FIGURE vs. FREQUENCY

MAX2108 toc05

RF FREQUENCY (MHz)

NF (dB)

= 4V

20 26 2822 24 30 32 34 36 38

NOISE FIGURE vs. INSERTION GAIN

(RF TO BASEBAND)

MAX2108 toc06

GAIN (dB)

NF (dB)

-40

-20

-30

-10

900 1100 1300 1500 1700 1900 2100

RF PORT SERIES IMPEDANCE

vs. FREQUENCY

MAX2108 toc07

FREQUENCY (MHz)

SERIES IMPEDANCE (Ω)

= 4V

REAL

IMAGINARY

-70

-40

-50

-60

-20

-30

-10

900 1100 1300 1500 1700 1900 2100

RF PORT SERIES IMPEDANCE

vs. FREQUENCY

MAX2108 toc08

FREQUENCY (MHz)

SERIES IMPEDANCE (Ω)

REAL

IMAGINARY

= 1V

-70

-40

-50

-60

-20

-30

-10

900 1100 1300 1500 1700 1900 2100

LO PORT SERIES IMPEDANCE

vs. FREQUENCY

MAX2108 toc10

FREQUENCY (MHz)

SERIES IMPEDANCE (Ω)

REAL

IMAGINARY

SINGLE-ENDED

0.1 101 100 1000

NORMALIZED BASEBAND GAIN

vs. BASEBAND FREQUENCY

MAX2108 toc11

BASEBAND FREQUENCY (MHz)

NORMALIZED BASEBAND GAIN (dB)

-5

1 2 3 4 5 6 7 8 9 10 11 12

Direct-Conversion Tuner IC 1

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Rainbow-electronics MAX2108 Manuel d'utilisateur Page 4

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