MAX2057ETX 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

比赛名单

MAX2057ETX

1700MHz to 2500MHz Variable-Gain Amplifier with Analog Gain Control

Maxim Integrated 

1700MHz to 2500MHz Variable-Gain

Amplifier with Analog Gain Control

AC ELECTRICAL CHARACTERISTICS (continued)

(Typical Operating Circuit with one attenuator connected, VCC = +4.75V to +5.25V, TA = -40°C to +85°C, unless otherwise noted.

Typical values are at VCC = +5.0V, R1 = 1.2kΩ, R2 = 2kΩ, POUT = +5dBm, fIN = 2100MHz, VCNTL = 1V, 50Ω system impedance,

second attenuator is not connected, TA = +25°C, unless otherwise noted.) (Note 3)

PARAMETER

CONDITIONS

MIN

Output 3rd-Order Intercept Point TA = +25°C to +85°C

Variation Over Temperature

TA = +25°C to -40°C

2nd Harmonic

From maximum gain to 15dB attenuation, POUT = +5dBm

3rd Harmonic

From maximum gain to 15dB attenuation, POUT = +5dBm

RF Gain-Control Range

fRF = 1.7GHz to 2.2GHz,

One attenuator

17

VCNTL = 1V to 4.5V

Two attenuators

34

RF Gain-Control Slope

VCNTL = 1.8V to 3.5V

Maximum RF Gain-Control Slope Maximum slope vs. gain-control voltage

Gain Flatness Over

100MHz Bandwidth

Peak-to-peak for all settings

Attenuator Switching Time

15dB attenuation change (Note 6)

Attenuator Insertion Loss

Input Return Loss

Output Return Loss

Group Delay

Second attenuator (IN_A, OUT_A)

Entire band, all gain settings

Entire band, all gain settings

Input/output 50Ω lines de-embedded

Group Delay Flatness Over

100MHz Bandwidth

Peak to peak

TYP

-0.83

-0.6

-65

-83

20.7

42.4

-10

-15.2

0.5

500

2.2

18

15

300

20

MAX UNITS

dB

dBc

dBc

dB

dB/V

dB/V

dB

ns

dB

dB

dB

ps

ps

Group Delay Change vs. Gain

Control

VCNTL = 1V to 4V

-70

ps

Insertion Phase Change vs. Gain

Control

VCNTL = 1V to 4V

50

degrees

Note 1: Total supply current reduces as R1 and R2 are increased.

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

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: f1 = 2100MHz, f2 = 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.

_______________________________________________________________________________________ 3

Share Link: