MAX2091 datasheet(4/29 Pages) MAXIM

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50MHz to 500MHz Analog VGA, 1735MHz to 1935MHz

Upconverting Mixer with Image Filtering, Threshold

Alarm Circuit, and Error Amplifier for Level Control

MAX2091

AC ELECTRICAL CHARACTERISTICS (continued)

(Typical Application Circuit with analog attenuator set to maximum gain, VCC = 4.75V to 5.8V, fRF = 1835MHz, fLO = 1485MHz,

fIF = 350MHz, fRF = fLO + fIF, PLO = -10dBm to -4dBm, TC = -40°C to +95°C, and IF_IN, LO+, and RF_OUT ports are connected

to 50ω sources and loads, unless otherwise noted. Typical values are at TC = +25°C, VCC = 5.5V, PLO = -7dBm, PIF = -25dBm,

VPLVLSET = 2.5V, CTRL1 = logic 1, CTRL2 = logic 0. Min/max specifications apply over supply, process, and temperature, unless

otherwise noted. (Notes 5, 7, 8)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

IF VGA (ATTENUATOR + AMPLIFIER)

Small-Signal Gain

23.5

27.5

Noise Figure

4.0

Output Third-Order

Intercept Point

OIP3

Up to 30dB attenuation,

PIF_OUT = 0dBm/tone, fRF2 - fRF1 = 1MHz

38.8

dBm

Output Second-Order

Intercept Point

OIP2

PIF_OUT = 0dBm/tone,

fRF2 - fRF1 = 1MHz

57.4

dBm

Output Second Harmonic

PIF_OUT = 0dBm

64.5

dBc

Output Third Harmonic

PIF_OUT = 0dBm

80.0

dBc

Output -1dB Compression Point

P1dB

17.6

dBm

Average Gain-Control Slope

VPLVLSET = 0.5V to 2.0V

16.5

19.5

23.0

dB/V

Maximum Gain-Control Slope

VPLVLSET = 0V to 2.5V

dB/V

VGA Reverse Isolation

Attenuator Response Time

PIF_IN = -15dBm, VPLVLSET = 2.5V to

1.2V, output settled to within Q0.5dB of

final value

330

PIF_IN = -15dBm, VPLVLSET = 1.2V to

2.5V, output settled to within Q0.5dB of

final value

220

Insertion Phase Change

VPLVLSET = 2.5V to 0V

11.4

Degrees

MIXER WITH IMAGE REJECT FILTER

Conversion Gain

-2.2

-0.5

1.5

SSB Noise Figure

17.1

Output Third-Order Intercept

Point

OIP3

24.7

dBm

Output -1dB Compression Point

P1dB

12.2

dBm

Image Rejection

fIF = 350MHz Q 50MHz

LO Leakage at RF_OUT

-41

dBm

2LO Leakage at RF_OUT

-35

dBm

Second Harmonic

HD2

PRF_OUT = -2dBm

dBc

Third Harmonic

HD3

PRF_OUT = -2dBm

77.5

dBc

3LO + IF Spur

PRF_OUT = -2dBm

dBc

MIX_IN Return Loss

LO+ Port Return Loss

RF_OUT Return Loss

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