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MAX1473 Datasheet, PDF (3/17 Pages) Maxim Integrated Products – 315MHz/433MHz ASK Superheterodyne Receiver with Extended Dynamic Range
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315MHz/433MHz ASK Superheterodyne
Receiver with Extended Dynamic Range
DC ELECTRICAL CHARACTERISTICS (5.0V OPERATION)
(Typical Application Circuit, VDD = 4.5V to 5.5V, no RF signal applied, TA = -40°C to +85°C, unless otherwise noted. Typical values
are at VDD = 5.0V and TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
Supply Voltage
VDD 5.0V nominal supply
4.5
5.0
5.5
V
Supply Current
IDD
VPWRDN = VDD
fRF = 315MHz
fRF = 433MHz
5.2
6.04
mA
5.7
6.76
Shutdown Supply Current
Input Voltage Low
IPWRDN
VIL
VPWRDN = 0V,
VXTALSEL = 0V
fRF = 315MHz
fRF = 433MHz
2.3
µA
2.8
6.2
0.4
V
Input Voltage High
VIH
VDD - 0.4
V
Input Logic Current High
IIH
10
µA
Image Reject Select (Note 2)
fRF = 433MHz, VIRSEL = VDD
fRF = 375MHz, VIRSEL = VDD/2
1.1
VDD - 0.4
VDD - 1.5
V
DATAOUT Voltage Output Low
DATAOUT Voltage Output High
VOL
VOH
fRF = 315MHz, VIRSEL = 0V
RL = 5kΩ
0.4
VDD - 0.4
0.4
V
V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, VDD = 3.0V to 3.6V, all RF inputs are referenced to 50Ω, fRF = 315MHz, TA = -40°C to +85°C, unless oth-
erwise noted. Typical values are at VDD = 3.3V and TA = +25°C.) (Note 1).
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
GENERAL CHARACTERISTICS
Startup Time
Receiver Input Frequency
Maximum Receiver Input Level
Sensitivity (Note 3)
AGC Hysteresis
LNA IN HIGH-GAIN MODE
tON
Time for valid signal detection after
VPWRDN = VOH
fRF
PRFIN_MAX Modulation depth > 18dB
Average carrier power level
PRFIN_MIN Peak power level
LNA gain from low to high
250
µs
300
450
MHz
0
dBm
-120
-114
dBm
8
dB
150
ms
Power Gain
Input Impedance
1dB Compression Point
S11LNA
Normalized to
50Ω (Note 4)
P1dBLNA
fRF = 433MHz
fRF = 375MHz
fRF = 315MHz
16
1 - j4.7
1 - j3.9
1 - j3.4
-22
dB
dBm
Input-Referred 3rd-Order
Intercept
IIP3LNA
-12
dBm
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