300MHz to 450MHz ASK Receiver
with Internal IF Filter
Typical Operating Characteristics
(Typical Application Circuit, V AVDD = V DD = V DVDD = 3.3V, f RF = 315MHz, T A = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(3.3V OPERATION)
(5.0V OPERATION)
SUPPLY CURRENT vs. RF FREQUENCY
5.5
5.4
5.3
5.2
5.1
5.0
T A = +105 ° C
V AVDD = V DVDD = V DD
T A = +85 ° C
T A = +25 ° C
5.45
5.40
5.35
5.30
5.25
5.20
5.15
5.0V APPLICATION CIRCUIT
T A = +105 ° C
T A = +85 ° C
T A = +25 °
7.0
6.5
6.0
5.5
5.0
T A = +85 ° C
T A = +105 ° C
P RF = -80dBm
4.9
4.8
T A = -40 ° C
5.10
5.05
5.00
T A = -40 ° C
4.5
4.0
T A = +25 ° T A = -40 ° C
3.0
3.1
3.2
3.3
3.4
3.5
3.6
4.5
4.7
4.9
5.1
5.3
5.5
250
300
350
400
450
500
SUPPLY VOLTAGE (V)
BIT ERROR RATE vs. PEAK RF
INPUT POWER
SUPPLY VOLTAGE (V)
SENSITIVITY vs. TEMPERATURE
RF FREQUENCY (MHz)
RSSI vs. INPUT POWER
100
10
f RF = 315MHz
f RF = 433MHz
-106.0
BER = 0.2%
-106.5 DATA RATE = 4kbps
MANCHESTER
-107.0
-107.5
2.4
2.2
2.0
f RF = 433MHz
f IF = 200kHz
1
-108.0
0.1
-108.5
f RF = 433MHz
f RF = 315MHz
1.8
-109.0
1.6
0.01
0.001
-109.5
-110.0
-110.5
1.4
1.2
-125
-120
-115
-110
-105
-40
-15
10
35
60
85
105
-120
-100
-80
-60
-40
-20
0
60
58
56
54
52
50
48
46
44
42
40
PEAK RF INPUT POWER (dBm)
LNA/MIXER VOLTAGE GAIN
vs. IF FREQUENCY
P RF = -71dBm
f RF = 433.92MHz
TEMPERATURE ( ° C)
S 11 SMITH CHART PLOT OF RFIN
(315MHz CIRCUIT)
S 11 = 7.9729 Ω - j0.6085 Ω
at f RF = 315MHz
INPUT POWER (dBm)
S 11 SMITH CHART PLOT OF RFIN
(433MHz CIRCUIT)
S 11 = 6.5175 Ω - j5.5849 Ω
at f RF = 433MHz
0
200
400
600
800
1000
IF FREQUENCY (kHz)
_______________________________________________________________________________________
5
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