Datasheet

(Typical Application Circuit, V
AVDD
= V
DVDD
= 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 V
AVDD
= V
DVDD
= V
DD5
= +3.3V and T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LNA IN LOW-GAIN MODE
Input Impedance Z
IN_LNA
Normalized to 50Ω
(Note 4)
f
RF
= 433MHz 1 - j3.4
f
RF
= 375MHz 1 - j3.9
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
Noise Figure NF
LNA
3 dB
Voltage-Gain Reduction AGC enabled (depends on tank Q) 35 dB
MIXER
Input-Referred 3rd-Order Intercept IIP3
MIX
-18 dBm
Output Impedance Z
OUT_MIX
330 Ω
Noise Figure NF
MIX
16 dB
Image Rejection
(Not Including LNA Tank)
f
RF
= 433MHz, V
IRSEL
= V
DVDD
42
dBf
RF
= 375MHz, V
IRSEL
= V
DVDD
/2 44
f
RF
= 315MHz, V
IRSEL
= 0V 44
LNA/Mixer Voltage Gain 330Ω IF lter load
LNA in high-gain mode 48
dB
LNA in low-gain mode 13
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
RSSI Level
P
RFIN
< -120dBm 1.15
V
P
RFIN
> 0dBm, AGC enabled 2.2
AGC Threshold
LNA gain from low to high 1.39
V
LNA gain from high to low 1.98
DATA FILTER
Maximum Bandwidth 50 kHz
DATA SLICER
Comparator Bandwidth 100 kHz
MAX7033 315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
www.maximintegrated.com
Maxim Integrated │ 4
Electrical Characteristics (continued)