Low-Cost, 308MHz, 315MHz, and 433.92MHz
ASK Transceiver with Fractional-N PLL
Typical Operating Characteristics (continued)
(Typical Operating Circuit, V PAVDD = V AVDD = V DVDD = V HVIN = +3.0V, f RF = 433.92MHz, IF BW = 280kHz. 4kbps Manchester
encoded, 0.2% BER deviation = ±50kHz, T A = +25°C, unless otherwise noted.)
TRANSMITTER
PHASE NOISE vs. OFFSET FREQUENCY
(TRANSMIT MODE)
PHASE NOISE vs. OFFSET FREQUENCY
(TRANSMIT MODE)
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
f RF = 315MHz
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
f RF = 434MHz
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
-40
OFFSET FREQUENCY (Hz)
REFERENCE SPUR MAGNITUDE
vs. SUPPLY VOLTAGE
10
8
OFFSET FREQUENCY (Hz)
FREQUENCY STABILITY
vs. SUPPLY VOLTAGE
-45
-50
434MHz
6
4
f RF = 315MHz
-55
315MHz
2
0
-60
-65
-70
-2
-4
-6
-8
-10
f RF = 434MHz
2.1
2.4
2.7
3.0
3.3
3.6
2.1
2.4
2.7
3.0
3.3
3.6
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
9
相关PDF资料
MAX7032EVSYS-433 EVAL KIT MAX7032
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MAX7033EVKIT-315 EVAL KIT FOR MAX7033 315MHZ
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