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MAX2701

1.8GHz to 2.5GHz Direct Downconversion Receivers

Maxim Integrated 

1.8GHz to 2.5GHz Direct Downconversion

Receivers

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2700/MAX2701 EV kit (Figure 3), VCC = +3.0V, TA = +25°C, SHDN = GAIN_SET = VCC, X2_EN = GND, CEXT+ connected to

CEXT-, PLO = -13dBm, FLO = 980MHz (MAX2700) and 1200MHz (MAX2701), PLNAIN = -30dBm, PRFIN = -25dBm, LNAIN and RFIN

(single-ended input to balun) driven from 50Ω source, LNAOUT terminated into load; MIX_I, MIX_Q AC-coupled to 2kΩ load; IIN1+,

QIN1+, IIN2+, QIN2+ driven from 1.1kΩ AC-coupled source; IOUT1, QOUT1 AC-coupled to 2kΩ; IOUT2, QOUT2 AC-coupled to

100Ω; input to VGAs, 20mVp-p at 1MHz tone, set VAGC = 1.25V, unless otherwise noted.)

PARAMETERS

POWER SUPPLY

Power-Supply Ripple Rejection

CONDITIONS

VCC = 3.0V + 100mVPP

frequency = 100 to 300kHz,

VOUT = 0.3Vp-p, (Note 9)

Mixer

VGA1

VGA2

MIN TYP MAX UNITS

57

35

dBc

28

Note 1: This is the recommended operating frequency range. The parts have been characterized over the specified frequency

range. Operation outside this range is possible but not guaranteed.

Note 2: Guaranteed by design and characterization.

Note 3: LNA is matched at input and output to 50Ω; f1 = 1960MHz, f2 = 1965MHz for MAX2700; f1 = 2400MHz, f2 = 2405MHz for

MAX2701; PIN = -30dBm per tone.

Note 4: Mixer IIP3 test. For MAX2700, RFIN is matched to 50Ω at 1960MHz. At RFIN, apply f1 = 1964.2MHz, f2 = 1968.2MHz, PIN =

-25dBm per tone, and measure IM3 product power level at 200kHz. For MAX2701, RFIN is matched to 50Ω at 2400MHz. At

RFIN, apply f1 = 2404.2MHz, f2 = 2408.2MHz, PIN = -25dBm per tone, and measure IM3 product power level at 200kHz.

Note 5: Mixer IIP2 test. For MAX2700, RFIN is matched to 50Ω at 1960MHz. At RFIN, apply f1 = 1964.2MHz, f2 = 1968.2MHz, PIN =

-25dBm per tone, and measure IM2 product power level at 4MHz. For MAX2701, RFIN is matched to 50Ω at 2400MHz. At

RFIN, apply f1 = 2404.2MHz, f2 = 2408.2MHz, PIN = -25dBm per tone, and measure IM2 product power level at 4MHz.

Note 6: Mixer spurious attenuation response. Mixer is matched to 50Ω at 1800MHz and FLO = 900MHz (LO doubler enabled).

FRFIN = 1801MHz, PRFIN = -85dBm, FSPUR = 3601.5MHz, PSPUR = -60dBm. Measure IF at 1MHz and spurious at 1.5MHz at

the output. For better than 38dBc spurious attenuation response, output spurious level should be at least 10dB lower than

the IF signal level. In the (2 x LO) - (1 x RF) spurious product notation, LO denotes the frequency of the final LO driving the

I/Q mixers inputs.

Note 7: Mixer gain specifications are production tested over LO power range.

Note 8: A filter output impedance of 1.1kΩ can directly drive the VGA inputs since there is minimal mismatch loss between source and

VGA input impedance.

Note 9: Electrolytic bypass cap to VCC not connected.

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