Rainbow-electronics MAX2057 Manual do Utilizador descarregar pdf (Página 3)

MAX2057

1700MHz to 2500MHz Variable-Gain

Amplifier with Analog Gain Control

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS (continued)

(Typical Operating Circuit with one attenuator connected, V

= +4.75V to +5.25V, T

= -40°C to +85°C, unless otherwise noted.

Typical values are at V

= +5.0V, R1 = 1.2kΩ, R2 = 2kΩ, P

OUT

= +5dBm, f

= 2100MHz, V

CNTL

= 1V, 50Ω system impedance,

second attenuator is not connected, T

= +25°C, unless otherwise noted.) (Note 3)

Note 1: Total supply current reduces as R

and R

are increased.

Note 2: Operating outside this range for extended periods may affect device reliability. Limit pin input current to 40mA when V

is not present.

Note 3: All limits include external component losses, unless otherwise noted.

Note 4: Noise figure increases by approximately 1dB for every 1dB of gain reduction.

Note 5: f

= 2100MHz, f

= 2101MHz, +5dBm/tone at OUT.

Note 6: Switching time is measured from 50% of the control signal to when the RF output settles to ±1dB.

PARAMETER CONDITIONS

MIN TYP MAX

UNITS

= +25°C to +85°C

-0.83

Output 3rd-Order Intercept Point

Variation Over Temperature

= +25°C to -40°C

-0.6

2nd Harmonic

From maximum gain to 15dB attenuation, P

OUT

= +5dBm

-65 dBc

3rd Harmonic

From maximum gain to 15dB attenuation, P

OUT

= +5dBm

-83 dBc

One attenuator 17

20.7

RF Gain-Control Range

= 1.7GHz to 2.2GHz,

CNTL

= 1V to 4.5V

Two attenuators 34

42.4

RF Gain-Control Slope V

CNTL

= 1.8V to 3.5V -10

dB/V

Maximum RF Gain-Control Slope

Maximum slope vs. gain-control voltage

-15.2

dB/V

Gain Flatness Over

100MHz Bandwidth

Peak-to-peak for all settings 0.5 dB

Attenuator Switching Time 15dB attenuation change (Note 6)

500

Attenuator Insertion Loss Second attenuator (IN_A, OUT_A) 2.2 dB

Input Return Loss Entire band, all gain settings 18 dB

Output Return Loss Entire band, all gain settings 15 dB

Group Delay Input/output 50Ω lines de-embedded

300

Group Delay Flatness Over

100MHz Bandwidth

Peak to peak 20 ps

Group Delay Change vs. Gain

Control

CNTL

= 1V to 4V -70 ps

Insertion Phase Change vs. Gain

Control

CNTL

= 1V to 4V 50

degrees

1 2 3 4 5 6 7 8 ... 11 12

Comentários a estes Manuais

Sem comentários

Rainbow-electronics MAX2057 Manual do Utilizador Página 3

Comentários a estes Manuais

Manuais e produtos relacionados com Hardware Rainbow-electronics MAX2057