Manual

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 50Ω, 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 50Ω
(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 50Ω 0.4
Noise Figure NF
LNA
3dB
Voltage-Gain Reduction AGC enabled (depends on tank Q) 35 dB
MIXER
Input Impedance
Z
IN_MIX
Normalized to 50Ω 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 330Ω 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