MAX2661 查看數據表（PDF） - Maxim Integrated
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MAX2661 Datasheet PDF : 16 Pages
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400MHz to 2.5GHz Upconverter Mixers
Typical Operating Characteristics (continued)
(VCC = SHDN = +3.0V, Typical Operating Circuits, PLO = -5dBm (MAX2660/MAX2661/MAX2663), PLO = -10dBm (MAX2671/MAX2673),
PIFIN = -30dBm, TA = +25°C, unless otherwise noted.)
MAX2673
LO PORT RETURN LOSS vs. LO FREQUENCY
0
-2
-4
-6
MAX2673
IF PORT IMPEDANCE vs. IF FREQUENCY
700
50 MAX2673toc07
600
0
REAL
500
-50
-8
400
-100
-10
-12
300
-150
-14
-16
-18
-20
250
800 1350 1900 2450 3000
LO FREQUENCY (MHz)
MAX2673
RF PORT IMPEDANCE vs. RF FREQUENCY
350
0 MAX2673toc08
200
-200
100
0
0
-250
IMAGINARY
-300
50 100 150 200 250 300 350 400 450 500
IF FREQUENCY (MHz)
MAX2673
LO-to-RF ISOLATION AND RF-to-LO ISOLATION
vs. LO OR RF FREQUENCY
45
300
-100
40
LO-TO-RF ISOLATION
IMAGINARY
35
POWER INTO LO PORT = -10dBm
250
-200
30
200
-300
25
150
-400
20
100
-500
15
10
RF-TO-LO ISOLATION
POWER INTO RF PORT = -25dBm
50
-600
REAL
5
0
-700
0 500 1000 1500 2000 2500 3000
RF FREQUENCY (MHz)
0
500 900 1300 1700 2100 2500
LO OR RF FREQUENCY (MHz)
MAX2673
CONVERSION GAIN AND OUTPUT
POWER vs. IF INPUT POWER
20
fRF = 900MHz
CONVERSION GAIN
10
fRF = 1900MHz
0
fRF = 2450MHz
-10
fRF = 900MHz
-20 fRF = 1900MHz
OUTPUT POWER
fRF = 2450MHz
-30
fRF
fLO
fIF
900MHz 970MHz 70MHz
-40
1900MHz 1830MHz 70MHz
2450MHz 2210MHz 240MHz
-50
-40 -45 -40 -35 -30 -25 -20 -15 -10 -5 0
IF INPUT POWER (dBm)
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