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315MHz/434MHz Low-Power, 3V/5V
ASK/FSK Superheterodyne Receiver
DC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, V AVDD = V DVDD = V HVIN = +2.4V to +3.6V, f RF = 300MHz to 450MHz, T A = -40°C to +125°C, unless other-
wise noted. Typical values are at V AVDD = V DVDD = V HVIN = +3.0V, f RF = 434 MHz, T A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Input-High Leakage Current
Input-Low Leakage Current
Input Capacitance
SYMBOL
I IH
I IL
C IN
(Note 2)
(Note 2)
(Note 2)
CONDITIONS
MIN
TYP
MAX
-20
20
2.0
UNITS
μA
μA
pF
VOLTAGE REGULATOR
Output Voltage
V REG
V HVIN = 5.0V, I LOAD = 7.0mA
3.0
V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, V AVDD = V DVDD = V HVIN = +2.4V to +3.6V, f RF = 300MHz to 450MHz, T A = -40°C to +125°C, unless other-
wise noted. Typical values are at V AVDD = V DVDD = V HVIN = +3.0V, f RF = 434 MHz, T A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL CHARACTERISTICS
0.2% BER, 4kbps
ASK
-114
Receiver Sensitivity
RF IN
Manchester Code, 280kHz
IF BW, 50 ?
FSK
-108
dBm
Maximum Receiver Input Power
Level
RF MAX
0
dBm
Receiver Input Frequency Range
Receiver Image Rejection
f RF
IR
(Note 3)
300
45
450
MHz
dB
LNA/MIXER (Note 4)
LNA Input Impedance
Voltage Conversion Gain (High-
Gain Mode)
Input-Referred 3rd-Order
Intercept Point (High-Gain Mode)
Voltage Conversion Gain (Low-
Gain Mode)
Input-Referred 3rd-Order
Intercept Point (Low-Gain Mode)
LO Signal Feedthrough to
Antenna
Mixer Output Impedance
Z IN_LNA
Z OUT_MIX
Normalized to 50 ?
f RF = 315MHz
f RF = 434MHz
1 - j4.7
1 - j3.4
47.5
-38
12.2
-5
-90
330
dB
dBm
dB
dBm
dBm
?
IF
Input Impedance
Operating Frequency
3dB Bandwidth
Z IN_IF
f IF
330
10.7
10
?
MHz
MHz
FM DEMODULATOR
Demodulator Gain
G FM
2.2
mV/kHz
_______________________________________________________________________________________
3
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