Datasheet

(V
DD
= +3.3V, T
A
= +25°C, unless otherwise noted. Typical Application Circuit.)
10
0.1
-120 -116 -114
1
AVERAGE RF INPUT POWER (dBm)
BIT-ERROR RATE (%)
-118
BIT-ERROR RATE vs. AVERAGE
RF INPUT POWER
MAX1470 toc02
1.0
1.4
1.2
1.8
1.6
2.0
2.2
-140 -80 -60-120 -100 -40 -20
RSSI vs. AVERAGE RF INPUT POWER
MAX1470 toc03
AVERAGE RF INPUT POWER (dBm)
RSSI (V)
IF BANDWIDTH = 350kHz
-116.0
-116.5
-117.0
-117.5
-118.0
-40 20-20 0 40 60 80
RECEIVER SENSITIVITY
vs. TEMPERATURE
MAX1470 toc04
TEMPERATURE (°C)
RECEIVER SENSITIVITY (dBm)
AVERAGE RF INPUT POWER
1% BER
IF BANDWIDTH = 350kHz
45
50
55
60
IMAGE REJECTION vs. TEMPERATURE
MAX1470 toc05
TEMPERATURE (°C)
IMAGE REJECTION (dB)
-40 20 40-20 0 60 80
-10
10
0
30
20
50
40
60
SYSTEM GAIN vs. IF FREQUENCY
MAX1470 toc06
IF FREQUENCY (MHz)
SYSTEM GAIN (dB)
0 10 20 30 40
FROM RFIN TO MIXOUT
f
LO
= 304.3MHz
UPPER SIDEBAND
LOWER SIDEBAND
53dB IMAGE
REJECTION
30
25
20
15
10
250 325275 300 350 375
LNA GAIN vs. RF FREQUENCY
MAX1470 toc07
RF FREQUENCY (MHz)
LNA GAIN (dB)
LC TANK
FILTER TUNED
TO 315MHz
4.7
5.1
4.9
5.5
5.3
5.9
5.7
6.1
2.7 3.12.9 3.3 3.5
SUPPLY CURRENT vs.
SUPPLY VOLTAGE
MAX1470 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
4.2
5.2
4.7
6.2
5.7
6.7
7.2
150 300 350200 250 400 450 500
SUPPLY CURRENT
vs. LO FREQUENCY
MAX1470 toc08
LO FREQUENCY (MHz)
SUPPLY CURRENT (mA)
0
20
10
40
30
60
50
70
1 10 100
INPUT IMPEDANCE vs.
INDUCTIVE DEGENERATION
MAX1470 toc09
INDUCTIVE DEGENERATION (nH)
REAL IMPEDANCE (Ω)
-350
-250
-300
-150
-200
-50
-100
0
IMAGINARY IMPEDANCE (Ω)
REAL IMPEDANCE
IMAGINARY IMPEDANCE
Maxim Integrated │ 4
www.maximintegrated.com
MAX1470 315MHz Low-Power, +3V Superheterodyne
Receiver
Typical Operating Characteristics