Datasheet

MAX7034
315MHz/434MHz ASK Superheterodyne
Receiver
3
AC ELECTRICAL CHARACTERISTICS
( Typical Application Circuit , V
DD5
= +4.5V to +5.5V, all RF inputs are referenced to 50Ω, f
RF
= 433.92MHz, T
A
= -40°C to +125°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
GENERAL CHARACTERISTICS
Startup Time t
ON
Time for valid signal detection after V
SHDN
= V
DD5
. Does not include baseband filter
settling.
250 μs
Receiver Input Frequency Range f
RF
300 450 MHz
Maximum Receiver Input Level 0 dBm
+25°C, 315MHz -114
Sensitivity at T
A
= +25
o
C (Note 3)
+25°C, 434MHz -113
dBm
+125°C, 315MHz -113
Sensitivity at T
A
= +125°C
(Note 3)
+125°C, 434MHz -110
dBm
Manchester coded 33
Maximum Data Rate
NRZ coded 66
kbps
LNA/MIXER
LNA/Mixer Voltage Gain (Note 4) 330Ω IF filter load 45 dB
LNA/Mixer Input-Referred 1dB
Compression Point
-50 dBm
Mixer Output Impedance Z
OUT_MIX
330 Ω
f
RF
= 434MHz, V
IRSEL
= V
DVDD
42
f
RF
= 375MHz, V
IRSEL
= V
DVDD
/2 44
Mixer Image Rejection
f
RF
= 315MHz, V
IRSEL
= 0V 44
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
> -40dBm 2.2
V