MAX2450CEP データシートの表示（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.)
MODULATOR IF OUTPUT
vs. SUPPLY VOLTAGE
70
68
TA = +70°C
66
TA = +25°C
64
TA = 0°C
62
MODULATOR IF OUTPUT
vs.TEMPERATURE
70
VCC = 3V
68
66
64
62
MODULATOR SIDEBAND REJECTION
vs. IF FREQUENCY
-30
VI_IN/I_IN = 1.2Vp-p
-32 VQ_IN/Q_IN = 1.2Vp-p
-34
-36
-38
-40
-42
60
2.7 2.8 2.9 3.0 3.1 3.2 3.3
VCC (V)
60
0
20
40
60
80
TEMPERATURE (°C)
-44
35 40 45 50 55 60 65 70 75 80
IF FREQUENCY (MHz)
MODULATOR SIDEBAND REJECTION
vs. TEMPERATURE
-36
VI_IN/I_IN = 1.2Vp-p
VQ_IN/Q_IN = 1.2Vp-p
-38
CARRIER SUPPRESSION
vs. IF FREQUENCY
-30
VI_IN/I_IN = 1.2Vp-p
-32 VQ_IN/Q_IN = 1.2Vp-p
-34
PRE_OUT WAVEFORM
-36
100mV/
-40
div
-38
-42
-44
0
20
40
60
80
TEMPERATURE (°C)
-40
-42
-44
35 40 45 50 55 60 65 70 75 80
IF FREQUENCY (MHz)
RL = 10kΩ
CL < 6pF
20ns/div
MODULATOR OUTPUT SPECTRUM
0
-10
VI_IN/I_IN = 1.2Vp-p
VQ_IN/Q_IN = 1.2Vp-p
-20
-30
-40
-50
-60
69.0
69.4
70.0
(MHz)
70.6
71.0
4 _______________________________________________________________________________________
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