Datasheet

MAX7042
308MHz/315MHz/418MHz/433.92MHz
Low-Power, FSK Superheterodyne Receiver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
( Typical Application Circuit , 50Ω system impedance, V
AVDD
= V
DVDD
= V
HVIN
= +2.4V to +3.6V, f
RF
= 308, 315, 418, and
433.92MHz; T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
AVDD
= V
DVDD
= V
HVIN
= +3.0V,
f
RF
= 433.92MHz, P
RFIN
≤ -80dBm, T
A
= +25°C, unless otherwise noted.)
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.
HVIN to AGND or DGND .......................................-0.3V to +6.0V
AVDD, DVDD to AGND or DGND..........................-0.3V to +4.0V
FSEL1, FSEL2, LNASEL,
EN, DATA...............................(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 TQFN (derate 34.5mW/°C above +70°C)..........2759mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Maximum RF Input Power ................................................+0dBm
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage (3V) V
DD
HVIN, AVDD, and DVDD connected
to power supply
2.4 3.0 3.6 V
Supply Voltage (5V) HVIN
HVIN connected to power supply,
AVDD and DVDD unconnected from
HVIN, but connected together
4.5 5.0 5.5 V
Operating, 1x I
LNA
6.2
315M H z ( 3V )
Operating, 2x I
LNA
6.8
Operating, 1x I
LNA
6.4
315M H z ( 5V )
Operating, 2x I
LNA
7.0
Operating, 1x I
LNA
6.4 8.7
434M H z ( 3V )
Operating, 2x I
LNA
7.0 8.6
Operating, 1x I
LNA
6.6 8.4
Supply Current I
DD
434M H z ( 5V )
Operating, 2x I
LNA
7.2 9.2
mA
T
A
= +25°C 0.02
T
A
= +85°C 0.1
Shutdown Current (3V) I
SHDN
All digital
inputs low
T
A
= +125°C 0.85 6
µA
T
A
= +25°C 0.6
T
A
= +85°C 1.4Shutdown Current (5V) I
SHDN
All digital
inputs low
T
A
= +125°C 4 7
µA
Startup Time t
ON
Time from EN = high to final signal
detection; does not include
baseband filter or data-
slicer reference settling
250 µs
DIGITAL I/O
Input High Threshold V
IH
0.9 x V
HVIN
V
Input Low Threshold V
IL
0.1 x V
HVIN
V