MAX2426 查看數據表（PDF） - Maxim Integrated
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MAX2426 Datasheet PDF : 14 Pages
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900MHz Image-Reject Receiver
with Transmit Mixer
______________________________Typical Operating Characteristics (continued)
(MAX2424/MAX2426 EV kit, VCC = +3.3V; fLO(RX) = 925.7MHz (MAX2424), 985MHz (MAX2426); fRXIN = 915MHz, PRXIN =
-35dBm, fLO(TX) = 915MHz, VTXIN = VTXIN = 2.3V (DC bias), VTXIN = 250mVp-p, fTXIN = 1MHz, VLNAGAIN = 2V, VVCOON = 2.4V,
RXON = TXON = MOD = DIV1 = PREGND = GND, TA = +25°C, unless otherwise noted.)
MAX2424
RECEIVER OUTPUT 1dB
COMPRESSION POINT vs. TEMPERATURE
-3
-4
VCC = 4.8V
RECEIVER IMAGE REJECTION
vs. RF FREQUENCY
60
RXON = VCC
50
RECEIVER IMAGE REJECTION
vs. IF FREQUENCY
40
35
MAX2424
MAX2426
-5
-6
VCC = 2.7V
VCC = 3.3V
-7
-8
-9
-40 -20
RXON = VCC
0 20 40 60 80
TEMPERATURE (°C)
40
30
20
10
0
-10
-20
0
400 800 1200 1600 2000
RF FREQUENCY (MHz)
30
25
20
15
10
5
0
1
RXON = VCC
10
100
1000
IF FREQUENCY (MHz)
RXIN INPUT IMPEDANCE
vs. FREQUENCY
MAX2424/6-13
50
-100
RXON = VCC
45
40
-80
35
IMAGINARY
30
-60
25
REAL
20
-40
15
10
-20
5
0
0
600 800 1000 1200 1400
FREQUENCY (MHz)
TXOUT OUTPUT IMPEDANCE
vs. FREQUENCY
150
100
50
REAL
0
-50
IMAGINARY
-100
-150
-200
-250
TXON = VCC
-300
600 800 1000 1200 1400 1600 1800 2000
FREQUENCY (MHz)
TRANSMITTER OUTPUT POWER
vs. INPUT VOLTAGE
5
TXON = VCC
VCC = 4.8V
0
VCC = 3.3V
-5
VCC = 2.7V
-10
-15
-20
-25
10
100
1000
INPUT VOLTAGE (mVp-p)
TRANSMITTER OUTPUT SPECTRUM
0
-10 TXON = VCC
DOUBLE-SIDE
BAND
-20
FUNDAMENTAL
-30
LO
-40
-50
-60
-70
-80
-90
-100
910 911 912 913 914 915 916 917 918 919 920
FREQUENCY (MHz)
TRANSMITTER OUTPUT POWER
vs. TEMPERATURE
-2
-3
-4
-5
-6
VCC = 4.8V
-7
-8
-9
VCC = 2.7V
-10
VCC = 3.3V
-11
-12
-13 TXON = VCC
-14
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
TRANSMITTER 1dB COMPRESSION POINT
vs. TEMPERATURE
1
VCC = 4.8V
0
-1
-2
VCC = 3.3V
-3
-4
VCC = 2.7V
-5
-6
TXON = VCC
-7
-40 -20 0
20 40
60 80
TEMPERATURE (°C)
6 _______________________________________________________________________________________
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