MAX1472 Datasheet, PDF (4/9 Pages) Maxim Integrated Products – 300MHz-to-450MHz Low-Power, Crystal-Based ASK Transmitter

300MHz-to-450MHz Low-Power, Crystal-Based
ASK Transmitter
Typical Operating Characteristics
(Typical Application Circuit, V_DD = 2.7V, T_A = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
13
V_ENABLE = V_IH,
12 ^VDATA ^{= V}IH^,
f_RF = 315MHz
11
+25°C
10
-40°C
9
+125°C
8
+85°C
7
6
5
2.0
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
1.9
V_ENABLE = V_IH,
1.8 VDATA = VIL,
f_RF = 315MHz
1.7
+85°C
+125°C
1.6
1.5
1.4
-40°C
1.3
1.2
+25°C
1.1
2.0
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
13
V_ENABLE = V_IH,
12 V_DATA = V_IH,
f_RF = 433MHz
11
-40°C
10
+25°C
9
+85°C
8
+125°C
7
6
5
2.0
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
2.2
V_ENABLE = V_IH,
+125°C
V_DATA = V_IL,
2.0 ^fRF ^{= 433MHz +85°C}
1.8
1.6
-40°C
+25°C
1.4
1.2
2.0
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
OUTPUT POWER vs. SUPPLY VOLTAGE
14
V_ENABLE = V_IH,
13 _{VDATA = VIH,}
12 ^{fRF = 315MHz}
-25°C
11 -40°C
10
+125°C
9
+85°C
8
7
6
5
2.0
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
OUTPUT POWER vs. SUPPLY VOLTAGE
14
V_ENABLE = V_IH,
13 VDATA = VIH,
f_RF = 433MHz
12
+25°C
11
-40°C
10
+125°C
9
+85°C
8
7
6
2.0
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
-65
-67
-69
-71
-73
-75
-77
-79
-81
-83
-85
2.0
REFERENCE SPUR MAGNITUDE
vs. SUPPLY VOLTAGE
315MHz
433MHz
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
FREQUENCY STABILITY
vs. SUPPLY VOLTAGE
2
1
0
-1
315MHz
433MHz
-2
-3
-4
2.0
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
TRANSMIT POWER EFFICIENCY
vs. SUPPLY VOLTAGE
55
50 -40°C
45
+25°C
40
35
30
25
2.0
+85°C
+125°C
CW OUTPUT
f_RF = 315MHz
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
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