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MAX9985
Dual, SiGe, High-Linearity, 700MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
AC ELECTRICAL CHARACTERISTICS (continued)
(Using the Typical Application Circuit, V CC = 4.75V to 5.25V, RF and LO ports are driven from 50 ? sources, P LO = -3dBm to +3dBm,
P RF = -5dBm, f RF = 820MHz to 920MHz, f LO = 670MHz to 865MHz, f IF = 100MHz, f RF > f LO , T C = -40°C to +85°C. Typical values are at
V CC = 5.0V, P RF = -5dBm, P LO = 0dBm, f RF = 870MHz, f LO = 770MHz, f IF = 100MHz, T C = +25°C, unless otherwise noted.) (Note 5)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
P LO1 = +3dBm, P LO2 = +3dBm,
LO1-to-LO2 Port Isolation
f LO1 -f LO2 = 1MHz, P RF = -5dBm,
39
43
dB
f IF = 100MHz (Notes 7, 10)
Maximum LO Leakage at RF Port
Maximum 2LO Leakage at RF Port
-40
-45
-30
-20
dBm
dBm
Maximum LO Leakage at IF Port
T C = +100°C
-30
-30.3
-20
dBm
Minimum RF-to-IF Isolation
T C = +100°C
30
45
49.5
dB
Minimum Channel-to-Channel
Isolation
P RF = -10dBm, RFMAIN (RFDIV)
power measured at IFDIV
(IFMAIN), relative to IFMAIN
(IFDIV), all unused ports
terminated to 50 ?
T C =
+100°C
40
47
47.5
dB
LO Switching Time
RF Input Impedance
LO Input Impedance
IF Output Impedance
RF Input Return Loss
LO Input Return Loss
IF Return Loss
50% of LOSEL to IF settled within 2 degrees
(Note 7)
Differential
LO on and IF terminated
LO port selected
LO port unselected
RF terminated in 50 ?
0.05
50
50
200
24
35
36
20
1
μs
?
?
?
dB
dB
dB
Note 5: All limits reflect losses of external components. Output measurements taken at IF outputs of the Typical Application Circuit.
Note 6: Performance is guaranteed for f RF = 820MHz to 920MHz, f LO = 670MHz to 865MHz, and f IF = 100MHz. Operation outside
this range is possible, but with degraded performance of some parameters. See the Typical Operating Characteristics.
Note 7: Guaranteed by design and characterization.
Note 8: Performance at T C = -40°C is guaranteed by design.
Note 9: Measured with external LO source noise filtered so the noise floor is -174dBm/Hz. This specification reflects the effects of
all SNR degradations in the mixer including the LO noise, as defined in Maxim Application Note 2021.
Note 10: Measured at IF port at IF frequency. LOSEL may be in any logic state.
4
Maxim Integrated
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MAX9986AEVKIT 功能描述:射频开发工具 RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
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