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MAX1473
315MHz/433MHz ASK Superheterodyne
Receiver with Extended Dynamic Range
Typical Operating Characteristics
(Typical Application Circuit, V DD = 3.3V, f RF = 315MHz, T A = +25°C, unless otherwise noted.)
5.6
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
7.0
SUPPLY CURRENT
vs. RF FREQUENCY
100
BIT-ERROR RATE
vs. AVERAGE RF INPUT POWER
5.5
+105 ° C
f RF = 433MHz
5.4
+85 ° C
6.5
+105 ° C
10
5.3
6.0
5.2
5.1
+25 ° C
5.5
5.0
+25 ° C
+85 ° C
1
0.1
f RF = 315MHz
5.0
4.9
-40 ° C
4.5
-40 ° C
0.01
3.0
3.1
3.2
3.3
3.4
3.5
3.6
250
300
350
400
450
500
-121 -120
-119 -118 -117 -116
-115 -114
SUPPLY VOLTAGE (V)
SENSITIVITY vs. TEMPERATURE
RF FREQUENCY (MHz)
RSSI vs. RF INPUT POWER
AVERAGE INPUT POWER (dBm)
RSSI AND DELTA
vs. IF INPUT POWER
-100
2.4
2.4
MAX1473 toc06
3.5
-102
-104
PEAK RF INPUT POWER
0.2% BER
IF BANDWIDTH = 280kHz
2.2
2.0
IF BANDWIDTH = 280kHz
V AGCDIS = V DD
2.2
2.0
2.5
1.5
-106
-108
f RF = 433MHz
1.8
1.8
0.5
-110
-112
1.6
1.4
V AGCDIS = 0V
1.6
1.4
DELTA
-0.5
-1.5
-114
-116
f RF = 315MHz
1.2
1.2
RSSI
-2.5
-118
-40 -20
0
20
40
60
80 100 120
1.0
-140 -120 -100
-80
-60
-40
-20
0
1.0
-90
-70
-50
-30
-10
10
-3.5
30
TEMPERATURE ( ° C)
SYSTEM GAIN vs. FREQUENCY
55
RF INPUT POWER (dBm)
IMAGE REJECTION
vs. RF FREQUENCY
45
IF INPUT POWER (dBm)
IMAGE REJECTION
vs. TEMPERATURE
20
UPPER
SIDEBAND
50
45
44
f RF = 315MHz
10
44
0
-10
50dB IMAGE
REJECTION
LOWER
SIDEBAND
45
40
f RF = 375MHz
43
43
42
f RF = 375MHz
f RF = 433MHz
-20
FROM RFIN TO
MIXOUT
f RF = 315MHz
35
f RF = 433MHz
f RF = 315MHz
42
41
-30
30
41
0
5
10
15
20
25
30
280
330
380
430
480
-40
-15
10
35
60
85
6
IF FREQUENCY (MHz)
RF FREQUENCY (MHz)
TEMPERATURE ( ° C)
Maxim Integrated
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