MAX9985ETX+ datasheet(2/15 Pages) MAXIM

Part #	MAX9985ETX+

Description	Dual, SiGe, High-Linearity, 700MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch

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Manufacturer	MAXIM [Maxim Integrated Products]

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Dual, SiGe, High-Linearity, 700MHz to 1000MHz

Downconversion Mixer with LO Buffer/Switch

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(Using the

Typical Application Circuit, no input RF or LO signals applied, VCC = 4.75V to 5.25V, TC = -40°C to +85°C. Typical values

are at VCC = 5.0V, TC = +25°C, unless otherwise noted.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

VCC to GND ...........................................................-0.3V to +5.5V

LO1, LO2 to GND ...............................................................±0.3V

Any Other Pins to GND...............................-0.3V to (VCC + 0.3V)

RFMAIN, RFDIV, and LO_ Input Power ..........................+20dBm

RFMAIN, RFDIV Current (RF is DC shorted to GND through

balun) ...............................................................................50mA

Continuous Power Dissipation (TC = +70°C) (Note A)

36-Pin Thin QFN (derate 26mW/°C above +70°C) .........10.8W

Operating Temperature Range ...........................-40°C to +85°C

Maximum Junction Temperature Range..........................+150°C

θJA .................................................................................+38°C/W

θJC...................................................................................7.4°C/W

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

VCC

4.75

5

5.25

V

Total supply current (see Table 1 for lower

current settings)

400

440

VCC (pin 16)

80

VCC (pin 30)

80

IFM+/IFM- (total of both)

105

Supply Current

ICC

IFD+/IFD- (total of both)

105

mA

LOSEL Input High Voltage

VIH

2V

LOSEL Input Low Voltage

VIL

0.8

V

LOSEL Input Current

IIH and IIL

-10

+10

µA

AC ELECTRICAL CHARACTERISTICS

(Using the

Typical Application Circuit, VCC = 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources, PLO = -3dBm to +3dBm,

PRF = -5dBm, fRF = 820MHz to 920MHz, fLO = 670MHz to 865MHz, fIF = 100MHz, fRF > fLO, TC = -40°C to +85°C. Typical values are at

VCC = 5.0V, PRF = -5dBm, PLO = 0dBm, fRF = 870MHz, fLO = 770MHz, fIF = 100MHz, TC = +25°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RF Frequency

fRF

(Note 2)

700

1000

MHz

LO Frequency

fLO

(Note 2)

570

865

MHz

IF Frequency

fIF

IF matching components affect the IF

frequency range (Note 2)

50

250

MHz

LO Drive

PLO

(Note 3)

-3

+3

dBm

Conversion Gain

GC

(Note 6)

4.5

6

7.5

dB

Gain Variation over Temperature

-0.012

dB/°C

Conversion Gain Flatness

Flatness over any one of three frequency bands:

fRF = 824MHz to 849MHz

fRF = 869MHz to 894MHz

fRF = 880MHz to 915MHz

±0.1

dB

Note A: TC is the temperature on the exposed paddle of the package.

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