MAX2685 查看數據表（PDF） - Maxim Integrated
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MAX2685 Datasheet PDF : 10 Pages
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Low-Cost, 900MHz, Low-Noise Amplifier
and Downconverter Mixer
Typical Operating Characteristics (continued)
(MAX2685 EV kit, VCC = V SHDN = +3V, fLNAIN = fMIXIN = 880MHz, fLO = 960MHz, PLNAIN = -30dBm, PLO = -8dBm, PMIXIN = -25dBm,
differential IFOUT operation, Zo = 50Ω, TA = +25°C, unless otherwise noted.)
8
6
4
2
0
-2
-4
-6
-8
-10
-12
60
MIXER GAIN vs. IF FREQUENCY
GAIN = HIGH
GAIN = LOW
BANDWIDTH DETERMINED BY
DIFFERENTIAL-TO-SINGLE-ENDED
CONVERTER CIRCUIT
70
80
90
100
IF FREQUENCY (MHz)
MIXER GAIN vs. LO POWER
7
GAIN = HIGH
6
5
4
GAIN = LOW
3
2
1
0
-15
-10
-5
0
LO POWER (dBm)
MIXER NOISE FIGURE vs. LO POWER
15.0
14.5
14.0
13.5
13.0
GAIN = LOW
12.5
12.0
11.5
GAIN = HIGH
11.0
10.5
10.0
-15
-10
-5
0
LO POWER (dBm)
LO PORT RETURN LOSS vs. FREQUENCY
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
750 800 850 900 950 1000 1050 1100
FREQUENCY (MHz)
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