MAX1473
315MHz/433MHz ASK Superheterodyne
Receiver with Extended Dynamic Range
Typical Operating Characteristics (continued)
(Typical Application Circuit, V DD = 3.3V, f RF = 315MHz, T A = +25°C, unless otherwise noted.)
5
0
-5
-10
-15
-20
NORMALIZED IF GAIN
vs. IF FREQUENCY
30
20
10
0
-10
-20
-30
-40
-50
-60
-70
S11 MAGNITUDE-LOG PLOT OF RFIN
315MHz
-34dB
S11 SMITH PLOT OF RFIN
MAX1473 toc12
600MHz
100MHz
1
10
IF FREQUENCY (MHz)
REGULATOR VOLTAGE
vs. REGULATOR CURRENT
100
10 109 208 307 406 505 604 703 802 901 1000
RF FREQUENCY (MHz)
PHASE NOISE
vs. OFFSET FREQUENCY
PHASE NOISE
vs. OFFSET FREQUENCY
3.1
3.0
0
-20
f RF = 315MHz
0
-20
f RF = 433MHz
2.9
-40 ° C
+25 ° C
+85 ° C
+105 ° C
-40
-60
-40
-60
2.8
-80
-80
2.7
2.6
-100
-120
-100
-120
2.5
V DD = 5.0V
-140
-140
5
15
25
35
45
1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 1.E+01
1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 1.E+01
REGULATOR CURRENT (mA)
Maxim Integrated
OFFSET FREQUENCY (MHz)
OFFSET FREQUENCY (MHz)
7
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