MAX2027 데이터 시트보기 (PDF) - Maxim Integrated

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MAX2027

IF Digitally Controlled Variable-Gain Amplifier

Maxim Integrated 

IF Digitally Controlled Variable-Gain Amplifier

AC ELECTRICAL CHARACTERISTICS

(Typical application circuit without matching, VCC = +4.75V to +5.25V, GND = 0V, max gain (B0 = B1 = B2 = B3 = B4 = 0), R1 =

825Ω, POUT = 5dBm, fIN = 50MHz, 50Ω RF system impedance. Typical values are at VCC = +5V and TA = +25°C, unless otherwise

noted.) (Notes 1, 2)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Frequency Range

Gain

Noise Figure

fR

G

No attenuation

NF

Max gain

50

400 MHz

15.5

dB

4.7

dB

Minimum Reverse Isolation

Max gain

22

dB

Output 1dB Compression Point

P1dB Max gain

20.6

2nd-Order Output Intercept Point

OIP2 f1 + f2, f1 = 50MHz, f2 = 51MHz, 5dBm/tone

42

3rd-Order Output Intercept Point

OIP3 All gain conditions, 5dBm/tone

34.7

dBm

dBm

dBm

2nd Harmonic

2fIN

3rd Harmonic

3fIN

RF Gain-Control Range

-44

dBc

-68

dBc

23

dB

Gain-Control Resolution

1

dB

Attenuation Absolute Accuracy

Compared to the ideal expected

attenuation

0.15/

-0.05

dB

Attenuation Relative Accuracy

Between adjacent states

±0.05

dB

Gain Drift Over Temperature

TA = -40°C to +85°C

±0.1

dB

Gain Flatness Over 50MHz BW

Attenuator Switching Time

Peak-to-peak for all settings,

FCENTER = 75MHz

Peak-to-peak for all settings,

FCENTER = 200MHz

50% control to 90% RF

0.1

dB

0.2

40

ns

Input Return Loss

Output Return Loss

fR = 50MHz to 250MHz, all gain conditions

15

dB

fR = 50MHz to 250MHz, all gain conditions

15

dB

Note 1: Guaranteed by design and characterization.

Note 2: All limits reflect losses of external components. Output measurements are taken at RF OUT using the typical application

circuit.

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