Typical operating characteristics (continued), Transmitter – Rainbow Electronics MAX7030 User Manual
Page 10

MAX7030
Low-Cost, 315MHz, 345MHz, and 433.92MHz
ASK Transceiver with Fractional-N PLL
10
______________________________________________________________________________________
PHASE NOISE vs. OFFSET FREQUENCY
MAX7030 toc31
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-140
f
RF
= 434MHz
1M
100k
10k
1k
100
10M
REFERENCE SPUR MAGNITUDE
vs. SUPPLY VOLTAGE
MAX7030 toc32
SUPPLY VOLTAGE (V)
REFERENCE SPUR MAGNITUDE (dBc)
3.3
3.0
2.7
2.4
-65
-60
-55
-50
-45
-40
-70
2.1
3.6
434MHz
315MHz
-8
-6
-4
-2
0
2
4
6
8
10
-10
FREQUENCY STABILITY
vs. SUPPLY VOLTAGE
MAX7030 toc33
SUPPLY VOLTAGE (V)
FREQUENCY STABILITY (ppm)
3.3
3.0
2.7
2.4
2.1
3.6
f
RF
= 434MHz
f
RF
= 315MHz
Typical Operating Characteristics (continued)
(Typical Operating Circuit, PAV
DD
= AV
DD
= DV
DD
= HV
IN
= +3.0V, f
RF
= 433.92MHz, IF BW = 280kHz, 4kbps Manchester encoded,
0.2% BER, T
A
= +25°C, unless otherwise noted.)
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