Rainbow-electronics MAX2684 Manual do Utilizador descarregar pdf (Página 10)

MAX2683/MAX2684

3.5GHz Downconverter Mixers

with Selectable LO Doubler

10 ______________________________________________________________________________________

LOX1 S11 vs. R

BIAS

(ENX2 = V

)

1.2kΩ, 2kΩ,

820Ω

1.2kΩ,

2kΩ, 820Ω

LOX2 S11 vs. R

BIAS

(ENX2 = GND)

-5

-2

-3

-4

-1

860 900880 920 940 960

MAX2683 toc49

IF FREQUENCY (MHz)

CONVERSION GAIN (dB)

CONVERSION GAIN vs. IF FREQUENCY

(ENX2 = V

)

= +25°C

= +85°C

= -40°C

-50

-40

-20

-30

-10

1200 13001250 1350 1400 1450

LOX2 PORT RETURN LOSS

vs. LO FREQUENCY

MAX2683 toc50

LO FREQUENCY (MHz)

RETURN LOSS (dB)

-50

-40

-20

-30

-10

2400 26002500 2700 2800 2900

LOX1 PORT RETURN LOSS

vs. LO FREQUENCY

MAX2683 toc51

LO FREQUENCY (MHz)

RETURN LOSS (dB)

MAX2684

Typical Operating Characteristics (continued)

(MAX2683/MAX2684 EV kit, V

= +5V, R

BIAS

= 1.2kΩ, ENX2 = GND, f

= 3.6GHz, P

= -20dBm, f

LOX2

= 1650MHz for MAX2683 or

LOX2

= 1350MHz for MAX2684, P

= -5dBm, all input/output ports terminated in 50Ω, IFOUT+ and IFOUT- matched to single-ended

50Ω load, T

= +25°C, unless otherwise noted.)

-5

-2

-3

-4

-1

3400 35003450 3550 3600 3650 3700 3750 3800

MAX2683 toc46

RF FREQUENCY (MHz)

CONVERSION GAIN (dB)

CONVERSION GAIN vs. RF FREQUENCY

(ENX2 = GND)

= +25°C

= +85°C

= -40°C

-5

-2

-3

-4

-1

3400 35003450 3550 3600 3650 3700 3750 3800

MAX2683 toc47

RF FREQUENCY (MHz)

CONVERSION GAIN (dB)

CONVERSION GAIN vs. RF FREQUENCY

(ENX2 = V

)

= +25°C

= +85°C

= -40°C

-5

-2

-3

-4

-1

860 900880 920 940 960

MAX2683 toc48

IF FREQUENCY (MHz)

CONVERSION GAIN (dB)

CONVERSION GAIN vs. IF FREQUENCY

(ENX2 = GND)

= +25°C

= +85°C

= -40°C

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16 17

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