Rainbow Electronics MAX1471 - Manual (Page 3)

MAX1471
315MHz/434MHz Low-Power, 3V/5V
ASK/FSK Superheterodyne Receiver
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DC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, AV
DD
= DV
DD
= HV
IN
= +2.4V to +3.6V, f
RF
= 300MHz to 450MHz, T
A
= -40°C to +125°C, unless otherwise
noted. Typical values are at AV
DD
= DV
DD
= HV
IN
= +3.0V, f
RF
= 434 MHz, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input-High Leakage Current I IH (Note 2) -10 µA
Input-Low Leakage Current I
IL
(Note 2) 10 µA
Input Capacitance C IN (Note 2) 2.0 pF
VOLTAGE REGULATOR
Output Voltage V REG HV IN = 5.0V, I LOAD = 7.0mA 3.0 V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, AV DD = DV DD = HV IN = +2.4V to +3.6V, f RF = 300MHz to 450MHz, T A = -40°C to +125°C, unless otherwise
noted. Typical values are at AV DD = DV DD = HV IN = +3.0V, f RF = 434 MHz, T A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
GENERAL CHARACTERISTICS
ASK -114
Receiver Sensitivity RF IN
0.2% BER, 4kbps
Manchester Code, 280kHz
IF BW, 50
Ω FSK -108
dBm
Maximum Receiver Input Power
Level
RF MAX 0 dBm
Receiver Input Frequency Range f RF 300 450 MHz
Receiver Image Rejection IR (Note 3) 45 dB
LNA/MIXER (Note 4)
f RF = 315MHz 1 - j4.7
LNA Input Impedance Z
11
Normalized to 50 Ω
f RF = 434MHz 1 - j3.4
Voltage Conversion Gain (High-
Gain Mode)
47.5 dB
Input-Referred 3rd-Order
Intercept Point (High-Gain Mode)
-38 dBm
Voltage Conversion Gain (Low-
Gain Mode)
12.2 dB
Input-Referred 3rd-Order
Intercept Point (Low-Gain Mode)
-5 dBm
LO Signal Feedthrough to
Antenna
-90 dBm
Mixer Output Impedance Z OUT 330 Ω
IF
Input Impedance Z 11 330 Ω
Operating Frequency f IF 10.7 MHz
3dB Bandwidth 10 MHz
FM DEMODULATOR
Demodulator Gain G FM 2.2 mV/kHz