MAX2700ECM 查看數據表（PDF） - Maxim Integrated
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MAX2700ECM Datasheet PDF : 28 Pages
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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
Input Third-Order Intercept
(Note 4)
Input Second-Order Intercept
(Note 5)
CONDITIONS
MAX2700, fLO = 980MHz
MAX2701, fLO = 1200MHz
MAX2700
MAX2701
MIN TYP MAX UNITS
+6.3
+6.5
dBm
+28.3
+38
dBm
VSWR
With 50Ω external
matching at RFIN+/ RFIN-
MAX2700
MAX2701
1.5
–
1.2
fRFIN = 1800MHz to
35
MAX2700
2100MHz
Isolation (RFIN to MIX_I/Q)
MAX2701
fRFIN ≤20MHz
fRFIN = 2100MHz to
2500MHz
28
dB
22
Isolation (RFIN to LO)
fRFIN ≤20MHz
MAX2700, fRFIN = 1800MHz to 2100MHz
MAX2701, fRFIN = 2100MHz to 2500MHz
12
38
dB
45
fLO = 900MHz to
1050MHz, X2_EN = GND
49
MAX2700
fLO = 900MHz to
1050MHz, X2_EN = GND,
43
dB
isolation at 2 x FLO
Isolation (LO to RFIN)
fLO = 1800MHz to
2100MHz, X2_EN = VCC
33
fLO = 1050MHz to 1250MHz,
X2_EN = GND
60
MAX2701
fLO = 1050MHz to 1250MHz,
X2_EN = GND, isolation at
44
2 x FLO
Mixer Spurious Suppression
Baseband Bandwidth
Gain Mismatch
2 x LO - RF (Note 6)
MIX_I/Q
∆GV (I-Q) (between mixer
I and Q channels)
fLO = 2100MHz to
2500MHz, X2_EN = VCC
-1dB bandwidth (Note 2)
-3dB bandwidth
Baseband frequency =
125kHz
Up to -1dB baseband
width (Note 2)
70
60
dBc
37
69
MHz
170
0.1
0.7
dB
0
0.7
4 _______________________________________________________________________________________
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