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MAX1470 查看數據表(PDF) - Maxim Integrated

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MAX1470 Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
315MHz Low-Power, +3V Superheterodyne
Receiver
Typical Operating Characteristics
(VDD = +3.3V, TA = +25°C, unless otherwise noted. Typical Application Circuit.)
SUPPLY CURRENT vs.
SUPPLY VOLTAGE
6.1
5.9
5.7
TA = +85°C
5.5
TA = +25°C
5.3
5.1
4.9
TA = -40°C
4.7
2.7
2.9
3.1
3.3
3.5
SUPPLY VOLTAGE (V)
-116.0
-116.5
RECEIVER SENSITIVITY
vs. TEMPERATURE
AVERAGE RF INPUT POWER
1% BER
IF BANDWIDTH = 350kHz
-117.0
-117.5
-118.0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
LNA GAIN vs. RF FREQUENCY
30
LC TANK
FILTER TUNED
TO 315MHz
25
20
15
10
250 275 300 325 350 375
RF FREQUENCY (MHz)
BIT-ERROR RATE vs. AVERAGE
RF INPUT POWER
10
1
0.1
-120
-118
-116
-114
AVERAGE RF INPUT POWER (dBm)
IMAGE REJECTION vs. TEMPERATURE
60
55
50
45
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
SUPPLY CURRENT
vs. LO FREQUENCY
7.2
6.7
6.2
5.7
5.2
4.7
4.2
150 200 250 300 350 400 450 500
LO FREQUENCY (MHz)
RSSI vs. AVERAGE RF INPUT POWER
2.2
IF BANDWIDTH = 350kHz
2.0
1.8
1.6
1.4
1.2
1.0
-140 -120 -100 -80 -60 -40 -20
AVERAGE RF INPUT POWER (dBm)
SYSTEM GAIN vs. IF FREQUENCY
60
FROM RFIN TO MIXOUT
50 fLO = 304.3MHz
UPPER SIDEBAND
40
30
53dB IMAGE
20
REJECTION
10
LOWER SIDEBAND
0
-10
0
10
20
30
40
IF FREQUENCY (MHz)
INPUT IMPEDANCE vs.
INDUCTIVE DEGENERATION
70
0 MAX1470 toc09
60
-50
50
REAL IMPEDANCE
-100
40
-150
30
-200
20
-250
10
IMAGINARY IMPEDANCE
-300
0
-350
1
10
100
INDUCTIVE DEGENERATION (nH)
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