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315MHz Low-Power, +3V Superheterodyne
Receiver
ABSOLUTE MAXIMUM RATINGS
AV DD to AGND ......................................................-0.3V to +4.0V
DV DD to DGND......................................................-0.3V to +4.0V
All Other Pins Referenced to AGND...........-0.3V to (V DD + 0.3V)
Continuous Power Dissipation (T A = +70°C)
Operating Temperature Range
MAX1470EUI ...................................................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
28-Pin TSSOP (derate 13mW/°C above +70°C) .........1039mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, V DD = +3.0V to +3.6V, no RF signal applied, T A = -40°C to +85°C. Typical values are at V DD = +3.3V, T A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
Supply Current
Shutdown Supply Current
V DD
I DD
I SHUTDOWN
PWRDN = V DD
PWRDN = GND
3.0
5.5
1.25
3.6
V
mA
μA
PWRDN Voltage Input Low
PWRDN Voltage Input High
V IL
V IH
V DD -
0.4
0.4
V
V
DATAOUT Voltage Output Low
DATAOUT Voltage Output High
V OL
V OH
I DATAOUT = 100μA
I DATAOUT = -100μA
V DD -
0.4
0.4
V
V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, all RF inputs and outputs are referenced to 50 ? , V DD = +3.3V, T A = +25°C, f RFIN = 315MHz, unless oth-
erwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL CHARACTERISTICS
Maximum Startup Time
Maximum Receiver Input Level
Minimum Receiver Input Level,
315MHz
T ON
RFIN MAX
RFIN MIN
Time from PWRDN deasserting to valid data
out
Modulation depth ≥ 60dB
Average carrier power level (Note 2)
Peak power level (Note 2)
250
0
-115
-109
μs
dBm
dBm
Minimum Receiver Input Level,
433.92MHz
Receivers
f RFIN
Average carrier power level (Note 2)
Peak power level (Note 2)
-110
-104
250 to 500
dBm
MHz
LOW-NOISE AMPLIFIER (LNA)
Input Impedance
S11 LNA
Normalized to 50 ? (Note 3)
1 - j4
1dB Compression Point
Input-Referred 3rd-Order
Intercept
LO Signal Feedthrough to
Antenna
P1dB LNA
IIP3 LNA
-22
-18
-95
dBm
dBm
dBm
Output Impedance
S22 LNA
Normalized to 50 ?
0.12 -
j4.4
2
_______________________________________________________________________________________
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