MAX2690EUB ,Low-Noise, 2.5GHz Downconverter MixerELECTRICAL CHARACTERISTICS (continued)(MAX2690 EV kit; V = +3.0V; P = -3dBm; P = -25dBm; SHDN = hig ..
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MAX2690EUB
Low-Noise, 2.5GHz Downconverter Mixer
MAX2690
Low-Noise, 2.5GHz
Downconverter Mixer
_______________General DescriptionThe MAX2690 is a miniature, low-noise, low-power
downconverter mixer designed for use in portable con-
sumer equipment. Signals at the RF input port are
mixed with signals at the local-oscillator (LO) port using
a double-balanced mixer. The RF port frequency range
is 400MHz to 2500MHz. The LO port frequency range is
700MHz to 2500MHz. The IF frequency range is 10MHz
to 500MHz, provided the LO and RF frequencies are
chosen appropriately.
The IF port is differential, which provides good linearity
and low LO emissions, as well as providing compatibili-
ty with applications using differential IF filters, such as
CDMA cellular phones. The mixer noise figure is 10dB
at 900MHz.
The MAX2690 draws 16mA at VCC= 3V and operates
from a +2.7V to +5.5V supply. A logic-controlled shut-
down mode reduces the supply current to less than 1µA,
making it ideal for battery-operated equipment. This
device is offered in a miniature 10-pin µMAX package.
________________________Applications2.45GHz Industrial-Scientific-Medical (ISM)
Band Radios
Wireless Local Area Networks (WLANs)
Personal Communications Systems (PCS)
Code-Division Multiple Access (CDMA)
Communications Systems
Cellular and Cordless Phones
Hand-Held Radios
____________________________Features7.6dBm Input Third-Order Intercept Point10dB Downconverter Mixer Noise Figure7.9dB Gain400MHz to 2500MHz Wideband OperationLow Cost+2.7V to +5.5V Single-Supply Operation<1µA Shutdown Mode Ultra-Small 10-Pin µMAX Package
__________________Pin Configuration
________________Functional Diagram
Typical Operating Circuit appears at end of data sheet.
MAX2690
Low-Noise, 2.5GHz
Downconverter Mixer
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS(VCC= +2.7V to +5.5V, no RF signals applied, LO = open, IFOUT+ = IFOUT- = VCC, SHDN= high, LGND = GND = GNDLO = 0V, = TMINto TMAX. Typical values are at VCC= +3.0V and TA= +25°C, unless otherwise noted. Minimum and maximum values are
guaranteed by design and characterization over temperature.)
AC ELECTRICAL CHARACTERISTICS(MAX2690 EV kit; VCC= +3.0V; PLO= -3dBm; PRF= -25dBm; SHDN= high; RFIN matched for 900MHz, 1.95GHz, and 2.45GHz as
noted below. Inductor connected from LGND to GND = 39nH for 900MHz operation, 27nH for 1.95GHz operation, and 6.8nH for
2.45GHz operation. TA= +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.
VCCto GND...........................................................-0.3V to +6.0V
RFIN Input Power..............................................................10dBm
LO Input Power.................................................................10dBmSHDNInput Voltage...................................-0.3V to (VCC+ 0.3V)
Continuous Power Dissipation
10-Pin µMAX (derate 4.1mW/°C above +70°C)............330mW
Operating Temperature Range
MAX2690EUB...................................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX2690
Low-Noise, 2.5GHz
Downconverter Mixer
AC ELECTRICAL CHARACTERISTICS (continued)(MAX2690 EV kit; VCC= +3.0V; PLO= -3dBm; PRF= -25dBm; SHDN= high; RFIN matched for 900MHz, 1.95GHz, and 2.45GHz as
noted below. Inductor connected from LGND to GND = 39nH for 900MHz operation, 27nH for 1.95GHz operation, and 6.8nH for
2.45GHz operation. TA= +25°C, unless otherwise noted.)
Note 1:Consult the Applications Informationsection for information on designing a matching network.
Note 2:Guaranteed by design and characterization.
Note 3:This spurious response is caused by a higher-order mixing product (2x2). Specified RF frequency is applied and IF output
power is observed at the desired IF frequency (200MHz for fRF= 900MHz, or 1.95GHz, and 350MHz for fRF= 2.45GHz).
Note 4:From the time SHDNgoes high to the time ICCreaches 90% of its final value (on), or from the time SHDNgoes low to the
time ICCdrops below 10µA (off).
MAX2690
Low-Noise, 2.5GHz
Downconverter Mixer
__________________________________________Typical Operating Characteristics(MAX2690 EV kit, VCC= +3.0V, PLO= -3dBm, PRF= -25dBm, fRF= 1.95GHz, fIF= 200MHz, SHDN= high, TA= +25°C, unless
otherwise noted.)
MAX2690
Low-Noise, 2.5GHz
Downconverter Mixer
____________________________Typical Operating Characteristics (continued)(MAX2690 EV kit, VCC= +3.0V, PLO= -3dBm, PRF= -25dBm, fRF= 1.95GHz, fIF= 200MHz, SHDN= high, TA= +25°C, unless
otherwise noted.)
MAX2690
Low-Noise, 2.5GHz
Downconverter Mixer
________________________________________________Key Specification Statistics(MAX2690 EV kit, VCC= +3.0V, PLO= -3dBm, PRF= -25dBm, fRF= 1.95GHz, fIF= 200MHz, SHDN= high, TA= +25°C, unless oth-
erwise noted.) Histograms represent measured data from a 30-unit sample taken from one wafer lot. The Gaussian curve is calculat-
ed for the measured data’s mean and standard deviation and is scaled to account for process variations (the listed mean and
standard deviation are from the scaled distribution, as plotted).
