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)
(Typical Application Circuit, V
DD5
= +4.5V to +5.5V, no RF signal applied, T
A
= -40°C to +105°C, unless otherwise noted. Typical
values are at V
DD5
= +5.0V and T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input-Voltage High V
IH
V
DD5
- 0.4 V
Input Logic Current High I
IH
15 µA
Image-Reject Select Voltage
(Note 2)
f
RF
= 433MHz, V
IRSEL
= V
DD5
V
DD5
- 0.4
Vf
RF
= 375MHz, V
IRSEL
= V
DD5
/2 1.1 V
DD5
- 1.5
f
RF
= 315MHz, V
IRSEL
= 0V 0.4
DATAOUT Output-Voltage Low V
OL
I
SINK
= 10µA 0.125 V
DATAOUT Output-Voltage High V
OH
I
SOURCE
= 10µA V
DD5
- 0.125 V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
GENERAL CHARACTERISTICS
Startup Time t
ON
Time for valid signal detection after V
SHDN
= V
DVDD
250 µs
Receiver Input Frequency f
RF
300 450 MHz
Maximum Receiver Input Level Modulation depth > 18dB 0 dBm
Sensitivity (Note 3)
Average carrier power level -120
dBm
Peak power level -114
AGC Hysteresis
LNA gain from low to high 8 dB
Switching time from low to high gain 1 ms
Maximum Data Rate
Manchester coded 33
kbps
NRZ coded 66
LNA IN HIGH-GAIN MODE
Input Impedance Z
IN_LNA
Normalized to 50Ω
f
RF
= 433MHz 1 - j3.4
f
RF
= 375MHz 1 - j3.9
f
RF
= 315MHz 1 - j4.7
1dB Compression Point P1dB
LNA
-22 dBm
Input-Referred 3rd-Order Intercept IIP3
LNA
-12 dBm
LO Signal Feedthrough to
Antenna
-80 dBm
Noise Figure NF
LNA
3 dB
MAX7033 315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
www.maximintegrated.com
Maxim Integrated │ 3
AC Electrical Characteristics
Electrical Characteristics (continued)