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MAX1473
315MHz/433MHz ASK Superheterodyne
Receiver with Extended Dynamic Range
DC ELECTRICAL CHARACTERISTICS (5.0V OPERATION)
(Typical Application Circuit, V DD = 4.5V to 5.5V, no RF signal applied, T A = -40°C to +85°C, unless otherwise noted. Typical values
are at V DD = 5.0V and T A = +25°C.) (Note 1)
PARAMETER
Supply Voltage
SYMBOL
V DD
CONDITIONS
5.0V nominal supply
MIN
4.5
TYP
5.0
MAX
5.5
UNITS
V
Supply Current
Shutdown Supply Current
I DD
I PWRDN
V P WRDN = V DD
V P WRDN = 0V,
V XTALSEL = 0V
f RF = 315MHz
f RF = 433MHz
f RF = 315MHz
f RF = 433MHz
5.2
5.7
2.3
2.8
6.04
6.76
6.2
mA
μA
Input Voltage Low
Input Voltage High
Input Logic Current High
V IL
V IH
I IH
f RF = 433MHz, V IRSEL = V DD
V DD - 0.4
V DD - 0.4
10
0.4
V
V
μA
Image Reject Select (Note 2)
f RF = 375MHz, V IRSEL = V DD /2
1.1
V DD - 1.5
V
f RF = 315MHz, V IRSEL = 0V
0.4
DATAOUT Voltage Output Low
DATAOUT Voltage Output High
V OL
V OH
R L = 5k ?
V DD - 0.4
0.4
V
V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, V DD = 3.0V to 3.6V, all RF inputs are referenced to 50 ? , f RF = 315MHz, T A = -40°C to +85°C, unless
otherwise noted. Typical values are at V DD = 3.3V and T A = +25°C.) (Note 1).
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL CHARACTERISTICS
Startup Time
Receiver Input Frequency
t ON
f RF
Time for valid signal detection after
V P WRDN = V OH
300
250
450
μs
MHz
Maximum Receiver Input Level
P RFIN_MAX Modulation depth > 18dB
0
dBm
Sensitivity (Note 3)
AGC Hysteresis
P RFIN_MIN
Peak power level
LNA gain from low to high
-114
8
150
dBm
dB
ms
LNA IN HIGH-GAIN MODE
Power Gain
16
dB
Input Impedance (Note 4)
1dB Compression Point
Input-Referred 3rd-Order
Intercept
Z IN_LNA
P1dB LNA
IIP3 LNA
Normalized to
50 ?
f RF = 433MHz
f RF = 375MHz
f RF = 315MHz
1 - j3.4
1 - j3.9
1 - j4.7
-22
-12
dBm
dBm
Maxim Integrated
3
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