Datasheet
MAX1471
315MHz/434MHz Low-Power, 3V/5V
ASK/FSK Superheterodyne Receiver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
High-Voltage Supply, HVIN to DGND ......................-0.3V, +6.0V
Low-Voltage Supply, AVDD and DVDD to AGND ....-0.3V, +4.0V
SCLK, DIO, CS, ADATA,
FDATA ...................................(DGND - 0.3V) to (HVIN + 0.3V)
All Other Pins............................(AGND - 0.3V) to (AVDD + 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
32-Pin Thin QFN (derate 21.3mW/°C above +70°C) ...1702mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
Soldering Temperature (reflow) ...................................... +260°C
DC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, V
AVDD
= V
DVDD
= V
HVIN
= +2.4V to +3.6V, f
RF
= 300MHz to 450MHz, T
A
= -40°C to +125°C, unless other-
wise noted. Typical values are at V
AVDD
= V
DVDD
= V
HVIN
= +3.0V, f
RF
= 434 MHz, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
GENERAL CHARACTERISTICS
Supply Voltage (5V) HVIN
AVDD and DVDD unconnected from HVIN,
but connected together
4.5 5.0 5.5 V
Supply Voltage (3V) V
DD
HVIN, AVDD, and DVDD connected to
power supply
2.4 3.0 3.6 V
Operating 7.0 8.4 mA
Polling duty cycle: 10%
duty cycle
705 855
DRX mode OFF current 5.0 14.2
T
A
< +85°C
Deep-sleep current 1.1 7.1
µA
Operating 8.5 mA
Polling duty cycle: 10%
duty cycle
865
DRX mode OFF current 15.5
T
A
< +105°C
(Note 2)
Deep-sleep current 13.4
µA
Operating 8.6 mA
Polling duty cycle: 10%
duty cycle
900
DRX mode OFF current 44.1
Supply Current I
DD
T
A
< +125°C
(Note 2)
Deep-sleep current 36.4
µA
Startup Time t
ON
Time for final signal detection, does not
include baseband filter settling (Note 2)
200 250 µs
DIGITAL OUTPUTS (DIO, ADATA, FDATA)
Output High Voltage V
OH
I
SOURCE
= 250µA (Note 2)
V
HVIN
-
0.15
V
Output Low Voltage V
OL
I
SINK
= 250µA (Note 2) 0.15 V
DIGITAL INPUTS (CS, DIO, SCLK)
Input High Threshold V
IH
0.9 x
V
HVIN
V
Input Low Threshold V
IL
.
0.1 x
V
HVIN
V