MAX7032 Maxim Integrated Products, MAX7032 Datasheet - Page 11

• Manufacturer Part Number: MAX7032
• Description: ASK/FSK Transceiver
• Manufacturer: Maxim Integrated Products

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(Typical Operating Circuit, PAV
4kbps Manchester encoded, frequency deviation = ±50kHz, BER = 0.2% average RF power, unless otherwise noted.)
30
25
20
15
10
2.1
f
50% DUTY CYCLE
RF
EFFICIENCY vs. SUPPLY VOLTAGE
= 315MHz
ASK/FSK Transceiver with Fractional-N PLL
2.4
-100
-110
-120
-130
-140
-40
-50
-60
-70
-80
-90
-10
10
-2
-4
-6
-8
SUPPLY VOLTAGE (V)
8
6
4
2
0
100
2.1
Low-Cost, Crystal-Based, Programmable,
2.7
f
RF
______________________________________________________________________________________
T
A
= 434MHz
= +85°C
2.4
1k
FREQUENCY STABILITY
vs. OFFSET FREQUENCY
3.0
vs. SUPPLY VOLTAGE
T
OFFSET FREQUENCY (Hz)
A
SUPPLY VOLTAGE (V)
= -40°C
T
PHASE NOISE
A
T
10k
2.7
= +25°C
A
DD
f
3.3
RF
= +125°C
= 315MHz
= AV
100k
3.0
3.6
f
DD
RF
= 434MHz
= DV
1M
3.3
30
25
20
15
Typical Operating Characteristics (continued)
DD
10M
3.6
2.1
= HV
f
50% DUTY CYCLE
RF
EFFICIENCY vs. SUPPLY VOLTAGE
TRANSMITTER
= 434MHz
2.4
IN
= +3.0V, f
SUPPLY VOLTAGE (V)
2.7
T
A
3.0
RF
= +125°C
T
A
T
= -40°C
A
= 433.92MHz, T
= +25°C
T
A
3.3
= +85°C
-56
-58
-60
-62
-64
-66
-40
-45
-50
-55
-60
-65
-70
3.6
2.1
2.1
f
f
CLKOUT SPUR = f
10pF LOAD CAPACITANCE
CLKOUT
RF
REFERENCE SPUR MAGNITUDE
= 434MHz
CLKOUT SPUR MAGNITUDE
2.4
A
2.4
= f
-100
-110
-120
-130
-140
vs. SUPPLY VOLTAGE
vs. SUPPLY VOLTAGE
= +25°C, IF BW = 280kHz, data rate =
XTAL
-40
-50
-60
-70
-80
-90
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
f
CLKOUT
100
/ 8
2.7
PHASE NOISE vs. OFFSET FREQUENCY
2.7
RF
f
RF
433.92MHz
± f
315MHz
= f
= 315MHz
CLKOUT
XTAL
1k
3.0
3.0
OFFSET FREQUENCY (Hz)
f
/ 4
CLKOUT
10k
3.3
3.3
= f
XTAL
100k
/ 2
3.6
3.6
1M
10M
11