Rainbow Electronics MAX2701 - Manual (Page 3)

MAX2700/MAX2701
1.8GHz to 2.5GHz Direct Downconversion
Receivers
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AC ELECTRICAL CHARACTERISTICS
(MAX2700/MAX2701 EV kit (Figure 3), V CC = +3.0V, T A = +25°C, SHDN = GAIN_SET = V CC , X2_EN = GND, CEXT+ connected to
CEXT-, P LO = -13dBm, F LO = 980MHz (MAX2700) and 1200MHz (MAX2701), P LNAIN = -30dBm, P RFIN = -25dBm, LNAIN and RFIN
(single-ended input to balun) driven from 50
Ω
source, LNAOUT terminated into load; MIX_I, MIX_Q AC-coupled to 2k
Ω
load; IIN1+,
QIN1+, IIN2+, QIN2+ driven from 1.1k
Ω
AC-coupled source; IOUT1, QOUT1 AC-coupled to 2k
Ω
; IOUT2, QOUT2 AC-coupled to
100
Ω
; input to VGAs, 20mVp-p at 1MHz tone, set V AGC = 1.25V, unless otherwise noted.)
PARAMETERS CONDITIONS MIN TYP MAX UNITS
LNA STAGE
MAX2700 1800 2100 Operating Frequency Range
(Note 1)
MAX2701 2100 2500
MHz
GAIN_SET = V CC 13.5 17.1 19.5 MAX2700,
f
LNAIN = 1960MHz GAIN_SET = GND -7.5 -1.9 2
GAIN_SET = V CC 13 20
T A = -40°C to 85°C
GAIN_SET = GND -8 2.5
GAIN_SET = V CC 13 16.5 18.5 MAX2701,
f
LNAIN = 2400MHz GAIN_SET = GND -6 -1.8 0.5
GAIN_SET = V CC 12.5 19
Power Gain (Note 2)
T A = -40°C to 85°C
GAIN_SET = GND -6.5 1.0
dB
GAIN_SET = V CC 2.0 MAX2700,
f
LNAIN = 1960MHz GAIN_SET = GND 15.8
GAIN_SET = V CC 2.3
Noise Figure
MAX2701,
f
LNAIN
= 2400MHz GAIN_SET = GND 16.7
dB
GAIN_SET = V CC +2.7 MAX2700,
f
LNAIN = 1960MHz GAIN_SET = GND +5.1
GAIN_SET = V CC +3.8
Input Third-Order Intercept
(Note 3)
MAX2701,
f
LNAIN = 2400MHz GAIN_SET = GND +4.3
dBm
Reverse Isolation 1800MHz to 2500MHz, GAIN_SET = V CC or GND 28 dB
LNAIN to LO, f LNAIN = 1800MHz to 2500MHz 30
Isolation
LNAOUT to RFIN, f LNAIN = 1800 MHz to 2500 MHz 44
dB
M AX2700 GAIN _S ET = V C C 1.1
GAIN_SET = GND 1.8
M AX2701 GAIN _S ET = V C C 1.3
At LNA input, with external
matching circuit at LNAIN
GAIN_SET = GND 2.1
M AX2700 GAIN _S ET = V C C 1.7
GAIN_SET = GND 1.6
M AX2701 GAIN _S ET = V C C 1.2
VSWR
At LNA output, with external
matching circuit at LNAOUT
GAIN_SET = GND 1.4
−
MIXER STAGE ( D i ffer enti al RF i np ut to m i xer I/Q outp uts w i th exter nal b al un and m atchi ng ci r cui t to 50
Ω
)
MAX2700 1800 2100 Frequency Range
(Notes 1, 2)
MAX2701 2100 2500
MHz
MAX2700, f RFIN = 1960 MHz 16 19.3 21.5
Voltage Gain
MAX2701, f RFIN = 2400 MHz 14.5 18.1 20
dB
MAX2700, f RFIN = 1960MHz 11.0
DSB Noise Figure
MAX2701, f RFIN = 2400MHz 12.8
dB