MAX2450CEP 查看數據表（PDF） - Maxim Integrated
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MAX2450CEP Datasheet PDF : 8 Pages
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3V, Ultra-Low-Power Quadrature
Modulator/Demodulator
____________________________Typical Operating Characteristics (continued)
(MAX2450 EV kit, VCC = LO_VCC = ENABLE = 3.0V, fLO = 140MHz, fI_IN/I_IN = fQ_IN/Q_IN = 600kHz, VI_IN/I_IN = VQ_IN/Q_IN = 1.2Vp-p,
fIF_IN = 70.1MHz, VIF_IN = 2.82mVp-p, TA = +25°C, unless otherwise noted.)
DEMODULATOR VOLTAGE CONVERSION
GAIN vs. TEMPERATURE AND SUPPLY
51.5
TA = 0°C
51.0
TA = +25°C
50.5
50.0
49.5
TA = +50°C
49.0
48.5
TA = +70°C
48.0
2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4
VCC (V)
DEMODULATOR VOLTAGE CONVERSION
GAIN vs. IF FREQUENCY
51.4
51.2
51.0
50.8
50.6
35 40 45 50 55 60 65 70 75 80
IF FREQUENCY (MHz)
DEMODULATOR VOLTAGE CONVERSION
GAIN vs. BASEBAND FREQUENCY
51
50
49
48
47
46
45
44
43
42
10k
100k
1M
10M
BASEBAND FREQUENCY (Hz)
100M
DEMODULATOR I/Q PHASE
AND AMPLITUDE MISMATCH
vs. TEMPERATURE
1.6
1.4
PHASE MATCH
1.2
1.0
0.8
0.6
0.4
0
AMPLITUDE MATCH
10 20 30 40 50 60 70
TEMPERATURE (°C)
DEMODULATOR INTERMOD POWER
vs. TEMPERATURE
-40
IM3
-45
-50
fOSC = 140MHz
fIF1 = 70.1MHz
-55
fIF2 = 70.11MHz
VIF_IN = 2.82mVp-p
-60
IM5
-65
0
10 20 30 40 50 60 70
TEMPERATURE (°C)
_______________________________________________________________________________________ 5
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