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315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
DC ELECTRICAL CHARACTERISTICS (+5.0V OPERATION) (continued)
(Typical Application Circuit, V DD5 = +4.5V to +5.5V, no RF signal applied, T A = -40°C to +105°C, unless otherwise noted. Typical
values are at V DD5 = +5.0V and T A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input-Voltage High
Input Logic Current High
V IH
I IH
f RF = 433MHz, V IRSEL = V DD5
V DD5 -
0.4
V DD5 -
0.4
15
V
μA
Image-Reject Select Voltage
(Note 2)
f RF = 375MHz, V IRSEL = V DD5 /2
1.1
V DD5 -
1.5
V
f RF = 315MHz, V IRSEL = 0V
0.4
DATAOUT Output-Voltage Low
DATAOUT Output-Voltage High
V OL
V OH
I SINK = 10μA
I SOURCE = 10μA
0.125
V DD5 -
0.125
V
V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, V AVDD = V DVDD = V DD5 = +3.0V to +3.6V, all RF inputs are referenced to 50 Ω , f RF = 315MHz,
T A = -40°C to +105°C, unless otherwise noted. Typical values are at V AVDD = V DVDD = V DD5 = +3.3V and T A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL CHARACTERISTICS
Startup Time
Receiver Input Frequency
Maximum Receiver Input Level
Sensitivity (Note 3)
AGC Hysteresis
Maximum Data Rate
t ON
f RF
Time for valid signal detection after V SHDN
= V DVDD
Modulation depth >18dB
Average carrier power level
Peak power level
LNA gain from low to high
Switching time from low to high gain
Manchester coded
NRZ coded
300
250
0
-120
-114
8
1
33
66
450
μs
MHz
dBm
dBm
dB
ms
kbps
LNA IN HIGH-GAIN MODE
f RF = 433MHz
1 - j3.4
Input Impedance
Z IN_LNA
Normalized to 50 Ω
f RF = 375MHz
1 - j3.9
f RF = 315MHz
1 - j4.7
1dB Compression Point
Input-Referred 3rd-Order
Intercept
LO Signal Feedthrough to
Antenna
Noise Figure
P1dB LNA
IIP3 LNA
NF LNA
-22
-12
-80
3
dBm
dBm
dBm
dB
_______________________________________________________________________________________
3
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