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Low-Cost, 315MHz and 433.92MHz
ASK Transceiver with Fractional-N PLL
Typical Operating Characteristics (continued)
(Typical Application Circuit, V PAVDD = V AVDD = V DVDD = V HVIN = +3.0V, f RF = 433.92MHz, IF BW = 280kHz, 4kbps Manchester encod-
ed, 0.2% BER, T A = +25°C, unless otherwise noted.)
TRANSMITTER
REFERENCE SPUR MAGNITUDE
PHASE NOISE vs. OFFSET FREQUENCY
vs. SUPPLY VOLTAGE
-40
-50
f RF = 434MHz
-40
-60
-45
434MHz
-70
-80
-90
-100
-110
-120
-130
-140
-50
-55
-60
-65
-70
315MHz
100
1k
10k
100k
1M
10M
2.1
2.4
2.7
3.0
3.3
3.6
OFFSET FREQUENCY (Hz)
10
8
6
FREQUENCY STABILITY
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
4
2
0
-2
-4
-6
-8
-10
f RF = 434MHz
f RF = 315MHz
2.1
2.4
2.7
3.0
3.3
3.6
SUPPLY VOLTAGE (V)
10
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MAX7030MATJ+ 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost, 315MHz, 345MHz, and 433.92MHz ASK Transceiver with Fractional-N PLL
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