MAX7033
315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
Electrical Characteristics (continued)
(Typical Application Circuit, VAVDD = VDVDD = VDD5 = +3.0V to +3.6V, all RF inputs are referenced to 50Ω, fRF = 315MHz,
TA = -40°C to +105°C, unless otherwise noted. Typical values are at VAVDD = VDVDD = VDD5 = +3.3V and TA = +25°C.) (Note 1)
PARAMETER
LNA IN LOW-GAIN MODE
Input Impedance
1dB Compression Point
SYMBOL
CONDITIONS
ZIN_LNA
Normalized to 50Ω
(Note 4)
P1dBLNA
fRF = 433MHz
fRF = 375MHz
fRF = 315MHz
MIN TYP MAX UNITS
1 - j3.4
1 - j3.9
1 - j4.7
-10
dBm
Input-Referred 3rd-Order Intercept IIP3LNA
-7
dBm
LO Signal Feedthrough to
Antenna
Noise Figure
Voltage-Gain Reduction
MIXER
NFLNA
AGC enabled (depends on tank Q)
-80
dBm
3
dB
35
dB
Input-Referred 3rd-Order Intercept IIP3MIX
-18
dBm
Output Impedance
ZOUT_MIX
330
Noise Figure
NFMIX
16
fRF = 433MHz, VIRSEL = VDVDD
42
Image Rejection
(Not Including LNA Tank)
fRF = 375MHz, VIRSEL = VDVDD/2
44
fRF = 315MHz, VIRSEL = 0V
44
LNA/Mixer Voltage Gain
LNA in high-gain mode
48
330Ω IF filter load
LNA in low-gain mode
13
INTERMEDIATE FREQUENCY (IF)
Input Impedance
ZIN_IF
330
Operating Frequency
fIF
Bandpass response
10.7
3dB Bandwidth
10
RSSI Linearity
±0.5
RSSI Dynamic Range
80
RSSI Level
AGC Threshold
PRFIN < -120dBm
1.15
PRFIN > 0dBm, AGC enabled
2.2
LNA gain from low to high
1.39
LNA gain from high to low
1.98
DATA FILTER
Maximum Bandwidth
50
DATA SLICER
Comparator Bandwidth
100
Ω
dB
dB
dB
Ω
MHz
MHz
dB
dB
V
V
kHz
kHz
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