Rainbow Electronics MAX7042 - Manual (Page 3)

MAX7042
308MHz/315MHz/418MHz/433.92MHz
Low-Power, FSK Superheterodyne Receiver
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DC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, 50 Ω system impedance, AV
DD = DV DD = HV IN = +2.4V to +3.6V, f RF = 308, 315, 418, and 433.92MHz;
T A = -40°C to +125°C, unless otherwise noted. Typical values are at AV DD = DV DD = HV IN = +3.0V, f RF = 433.92MHz,
P RFIN
≤ -80dBm, T
A = +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
HV IN = +3.6V 8 15
Input High Pulldown Current I IH
HV IN = +5.5V 20 40
µA
HV IN = +3.6V <1 1
Input Low-Leakage Current I IL
HV IN = +5.5V <1 1
µA
Output High Voltage V OH I SOURCE = 500µA HV IN - 0.4 V
Output Low Voltage V OL I SINK = 500µA 0.4 V
VOLTAGE REGULATOR
Output Voltage V REG 2.5 3.0 3.5 V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, 50 Ω system impedance, AV
DD = DV DD = HV IN = +2.4V to +3.6V, f RF = 308, 315, 418, and 433.92MHz;
T A = -40°C to +125°C, unless otherwise noted. Typical values are at AV DD = DV DD = HV IN = +3.0V, f RF = 433.92MHz,
P RFIN
≤ -80dBm, T
A = +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Maximum Input Level 0 dBm
Operating, 1x I LNA -107 315MHz
setting
Operating, 2x I LNA -110
Operating, 1x I LNA -106
Sensitivity (Note 1)
434MHz
setting
Operating, 2x I LNA -109
dBm
Receiver Image Rejection 45 dB
LNA/MIXER
2x I LNA 315MHz 0.94 - j3.2
Input Impedance (Note 2) Z
11
Normalized to
50
Ω
2x I LNA 433.92MHz 0.94 - j2.1
1x I LNA 315MHz -47 1dB Input Compression Point
(Notes 2, 3)
P 1dB
2x I
LNA
315MHz -52
dBm
1x I LNA 315MHz -37 Input-Referred 3rd-Order Intercept
Point (Notes 2, 3)
IIP3
2x I LNA 315MHz -42
dBm
LO Signal Feedthrough to
Antenna
-80 dBm
Mixer Output Impedance Zout MIX 330 Ω
1x I LNA 315MHz 52
2x I LNA 315MHz 57
1x I
LNA
433.92MHz 47
Voltage Conversion Gain
330 Ω IF filter
load
(Notes 2, 3)
2x I LNA 433.92MHz 52
dB
IF LIMITING AMPLIFIER
Input Impedance Z 11 330 Ω
-3dB Bandwidth 10 MHz