Rainbow Electronics MAX7033 - Manual (Page 4)

MAX7033
315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, AV DD = DV DD = 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 AV DD = DV DD = V DD5 = +3.3V and T A = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LNA IN LOW-GAIN MODE
f RF = 433MHz 1 - j3.4
f RF = 375MHz 1 - j3.9 Input Impedance Z IN_LNA
Normalized to 50 Ω
(Note 4)
f RF = 315MHz 1 - j4.7
1dB Compression Point P1dB LNA -10 dBm
Input-Referred 3rd-Order
Intercept
IIP3 LNA -7 dBm
LO Signal Feedthrough to
Antenna
-80 dBm
Output Impedance Z OUT_LNA Normalized to 50 Ω 0.4
Noise Figure NF LNA 3 dB
Voltage-Gain Reduction AGC enabled (depends on tank Q) 35 dB
MIXER
Input Impedance Z
IN_MIX
Normalized to 50 Ω 0.25 - j2.4
Input-Referred 3rd-Order
Intercept
IIP3 MIX -18 dBm
Output Impedance Z OUT_MIX 330 Ω
Noise Figure NF MIX 16 dB
f RF = 433MHz, V IRSEL = DV DD 42
f RF = 375MHz, V IRSEL = DV DD / 2 44
Image Rejection
(Not Including LNA Tank)
f RF = 315MHz, V IRSEL = 0V 44
dB
LNA in high-gain
mode
48
LNA/Mixer Voltage Gain 330 Ω IF filter load
LNA in low-gain
mode
13
dB
INTERMEDIATE FREQUENCY (IF)
Input Impedance Z IN_IF 330 Ω
Operating Frequency f IF Bandpass response 10.7 MHz
3dB Bandwidth 10 MHz
RSSI Linearity ±0.5 dB
RSSI Dynamic Range 80 dB
P RFIN < -120dBm 1.15
RSSI Level
P RFIN > 0dBm, AGC enabled 2.2
V
LNA gain from low to high 1.39
AGC Threshold
LNA gain from high to low 1.98
V
DATA FILTER
Maximum Bandwidth 50 kHz
DATA SLICER
Comparator Bandwidth 100 kHz