User Manual

MAX2700/MAX2701
1.8GHz to 2.5GHz Direct Downconversion
Receivers
4 _______________________________________________________________________________________
PARAMETERS CONDITIONS
MIN
TYP
MAX
UNITS
MAX2700, f
LO
= 980MHz
+6.3
Input Third-Order Intercept
(Note 4)
MAX2701, f
LO
= 1200MHz
+6.5
dBm
MAX2700
+28.3
Input Second-Order Intercept
(Note 5)
MAX2701 +38
dBm
MAX2700 1.5
VSWR
W i th 50Ω exter nal
m atchi ng at RFIN + / RFIN -
MAX2701 1.2
–
f
RFIN
= 1800MHz to
2100MHz
35
MAX2700
f
RFIN
≤20MHz 28
f
RFIN
= 2100MHz to
2500MHz
22
Isolation (RFIN to MIX_I/Q)
MAX2701
f
RFIN
≤20MHz 12
dB
MAX2700, f
RFIN
= 1800MHz to 2100MHz 38
Isolation (RFIN to LO)
MAX2701, f
RFIN
= 2100MHz to 2500MHz 45
dB
f
LO
= 900MHz to
1050MHz, X2_EN = GND
49
f
LO
= 900MHz to
1050MHz, X2_EN = GND,
isolation at 2 x F
LO
43
MAX2700
f
LO
= 1800MHz to
2100MHz, X2_EN = V
CC
33
dB
f
LO
= 1050MHz to 1250MHz,
X2_EN = GND
60
f
LO
= 1050MHz to 1250MHz,
X2_EN = GND, isolation at
2 x F
LO
44
Isolation (LO to RFIN)
MAX2701
f
LO
= 2100MHz to
2500MHz, X2_EN = V
CC
70
Mixer Spurious Suppression 2 x LO - RF (Note 6) 60 dBc
-1dB bandwidth (Note 2) 37 69
Baseband Bandwidth MIX_I/Q
-3dB bandwidth
170
MHz
Baseband frequency =
125kHz
0.1 0.7
Gain Mismatch
∆G
V
(I-Q) (between mixer
I and Q channels)
Up to -1dB baseband
width (Note 2)
0 0.7
dB
AC ELECTRICAL CHARACTERISTICS (continued)
(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 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 V
AGC
= 1.25V, unless otherwise noted.)