MAX7032 データシートの表示（PDF） - Maxim Integrated
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MAX7032
Maxim Integrated
MAX7032 Datasheet PDF : 32 Pages
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Low-Cost, Crystal-Based, Programmable,
ASK/FSK Transceiver with Fractional-N PLL
Typical Operating Characteristics (continued)
(Typical Application Circuit, VPAVDD = VAVDD = VDVDD = VHVIN = +3.0V, fRF = 433.92MHz, TA = +25°C, IF BW = 280kHz, data rate
= 4kbps Manchester encoded, frequency deviation = ±50kHz, BER = 0.2% average RF power, unless otherwise noted.)
TRANSMITTER
EFFICIENCY vs. SUPPLY VOLTAGE
30
fRF = 315MHz
50% DUTY CYCLE
25
TA = -40°C
TA = +25°C
20
TA = +125°C
15
TA = +85°C
10
2.1 2.4 2.7 3.0 3.3 3.6
SUPPLY VOLTAGE (V)
EFFICIENCY vs. SUPPLY VOLTAGE
30
fRF = 434MHz
50% DUTY CYCLE
TA = -40°C
25
TA = +25°C
20
15
2.1
TA = +85°C
TA = +125°C
2.4 2.7 3.0 3.3 3.6
SUPPLY VOLTAGE (V)
PHASE NOISE vs. OFFSET FREQUENCY
-40
-50 fRF = 315MHz
-60
-70
-80
-90
-100
-110
-120
-130
-140
100
1k 10k 100k 1M 10M
OFFSET FREQUENCY (Hz)
PHASE NOISE
vs. OFFSET FREQUENCY
-40
-50 fRF = 434MHz
-60
-70
-80
-90
-100
-110
-120
-130
-140
100
1k 10k 100k 1M 10M
OFFSET FREQUENCY (Hz)
10
8
6
4
2
0
-2
-4
-6
-8
-10
2.1
FREQUENCY STABILITY
vs. SUPPLY VOLTAGE
fRF = 315MHz
fRF = 434MHz
2.4 2.7 3.0 3.3 3.6
SUPPLY VOLTAGE (V)
REFERENCE SPUR MAGNITUDE
vs. SUPPLY VOLTAGE
-40
-45
433.92MHz
-50
-55
-60
315MHz
-65
-70
2.1 2.4 2.7 3.0 3.3 3.6
SUPPLY VOLTAGE (V)
CLKOUT SPUR MAGNITUDE
vs. SUPPLY VOLTAGE
-56
fRF = 434MHz
CLKOUT SPUR = fRF ± fCLKOUT
-58 10pF LOAD CAPACITANCE
fCLKOUT = fXTAL/8
-60
-62
-64
-66
2.1
fCLKOUT = fXTAL/2
fCLKOUT = fXTAL/4
2.4 2.7 3.0 3.3 3.6
SUPPLY VOLTAGE (V)
______________________________________________________________________________________ 11
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