MAX1471ATJ ,315MHz/434MHz Low-Power, 3V/5V ASK/FSK Superheterodyne ReceiverFeatures♦ ASK and FSK Demodulated Data on SeparateThe MAX1471 low-power, CMOS, superheterodyne, RFO ..
MAX1471ATJ+ ,315MHz/434MHz Low-Power, 3V/5V ASK/FSK Superheterodyne ReceiverApplications *0.2% BER, 4kbps, Manchester-encoded data, 280kHz IF BWAutomotive Remote Keyless Entry ..
MAX1472AKA ,300MHz-to-450MHz Low-Power, Crystal-Based ASK TransmitterELECTRICAL CHARACTERISTICS(Typical Application Circuit, output power is referenced to 50Ω , V = 2.1 ..
MAX1472AKA+T ,300MHz-to-450MHz Low-Power, Crystal-Based ASK TransmitterApplicationsOrdering InformationRemote Keyless EntryTEMP PIN- TOPPARTRANGE PACKAGE MARKRF Remote Co ..
MAX1472AKA+T ,300MHz-to-450MHz Low-Power, Crystal-Based ASK TransmitterFeaturesThe MAX1472 is a crystal-referenced phase-locked♦ 2.1V to 3.6V Single-Supply Operationloop ..
MAX1472AKA-T ,300MHz-to-450MHz Low-Power / Crystal-Based ASK TransmitterELECTRICAL CHARACTERISTICS(Typical Application Circuit, output power is referenced to 50Ω , V = 2.1 ..
MAX4053ACEE+ ,Low-Voltage, CMOS Analog Multiplexers/SwitchesMAX4051/A, MAX4052/A, MAX4053/A19-0463; Rev 2; 10/05Low-Voltage, CMOS AnalogMultiplexers/Switches
MAX4053ACEE+ ,Low-Voltage, CMOS Analog Multiplexers/SwitchesFeaturesThe MAX4051/MAX4052/MAX4053 and MAX4051A/ ♦ Pin Compatible with Industry-Standard MAX4052A/ ..
MAX4053ACEE+T ,Low-Voltage, CMOS Analog Multiplexers/SwitchesGeneral Description ________
MAX4053ACPE ,Low-Voltage / CMOS Analog Multiplexers/SwitchesGeneral Description ________
MAX4053ACSE ,Low-Voltage / CMOS Analog Multiplexers/SwitchesApplications' Low Distortion: < 0.04% (600Ω)Battery-Operated Equipment' Low Crosstalk: < -90dB (50Ω ..
MAX4053ACSE ,Low-Voltage / CMOS Analog Multiplexers/SwitchesGeneral Description ________
MAX1471ATJ
315MHz/434MHz Low-Power, 3V/5V ASK/FSK Superheterodyne Receiver
General DescriptionThe MAX1471 low-power, CMOS, superheterodyne, RF
dual-channel receiver is designed to receive both ampli-
tude-shift-keyed (ASK) and frequency-shift-keyed (FSK)
data without reconfiguring the device or introducing any
time delay normally associated with changing modula-
tion schemes. The MAX1471 requires few external com-
ponents to realize a complete wireless RF digital data
receiver for the 300MHz to 450MHz ISM bands.
The MAX1471 includes all the active components
required in a superheterodyne receiver including: a low-
noise amplifier (LNA), an image-reject (IR) mixer, a fully
integrated phase-locked loop (PLL), local oscillator
(LO), 10.7MHz IF limiting amplifier with received-signal-
strength indicator (RSSI), low-noise FM demodulator,
and a 3V voltage regulator. Differential peak-detecting
data demodulators are included for both the FSK and
ASK analog baseband data recovery. The MAX1471
includes a discontinuous receive (DRX) mode for low-
power operation, which is configured through a serial
interface bus.
The MAX1471 is available in a 32-pin thin QFN package
and is specified over the automotive -40°C to +125°C
temperature range.
ApplicationsAutomotive Remote Keyless Entry (RKE)
Tire Pressure Monitoring Systems
Garage Door Openers
Wireless Sensors
Wireless Keys
Security Systems
Medical Systems
Home Automation
Local Telemetry Systems
FeaturesASK and FSK Demodulated Data on Separate
OutputsSpecified over Automotive -40°C to +125°C
Temperature Range Low Operating Supply Voltage Down to 2.4VOn-Chip 3V Regulator for 5V OperationLow Operating Supply Current
7mA Continuous Receive Mode
1.1µA Deep-Sleep ModeDiscontinuous Receive (DRX) Low-Power
ManagementFast-On Startup Feature < 250µsIntegrated PLL, VCO, and Loop Filter45dB Integrated Image RejectionRF Input Sensitivity*
ASK: -114dBm
FSK: -108dBmSelectable IF BW with External FilterProgrammable Through Serial User InterfaceRSSI Output and High Dynamic Range with AGC
MAX1471
315MHz/434MHz Low-Power, 3V/5V
ASK/FSK Superheterodyne Receiver
Pin Configuration19-3272; Rev 0; 4/04
*0.2% BER, 4kbps, Manchester-encoded data, 280kHz IF BW
Ordering Information**EP = Exposed pad.
MAX1471
315MHz/434MHz Low-Power, 3V/5V
ASK/FSK Superheterodyne Receiver
ABSOLUTE MAXIMUM RATINGSStresses 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, HVINto DGND.......................-0.3V, +6.0V
Low-Voltage Supply, AVDDand DVDDto 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 (TA= +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
DC ELECTRICAL CHARACTERISTICS(Typical Application Circuit, AVDD= DVDD= HVIN= +2.4V to +3.6V, fRF= 300MHz to 450MHz, TA= -40°C to +125°C, unless otherwise
noted. Typical values are at AVDD= DVDD= HVIN= +3.0V, fRF= 434 MHz, TA= +25°C, unless otherwise noted.) (Note 1)
MAX1471
315MHz/434MHz Low-Power, 3V/5V
ASK/FSK Superheterodyne Receiver
DC ELECTRICAL CHARACTERISTICS (continued)(Typical Application Circuit, AVDD= DVDD= HVIN= +2.4V to +3.6V, fRF= 300MHz to 450MHz, TA= -40°C to +125°C, unless otherwise
noted. Typical values are at AVDD= DVDD= HVIN= +3.0V, fRF= 434 MHz, TA= +25°C, unless otherwise noted.) (Note 1)
AC ELECTRICAL CHARACTERISTICS(Typical Application Circuit, AVDD= DVDD= HVIN= +2.4V to +3.6V, fRF= 300MHz to 450MHz, TA= -40°C to +125°C, unless otherwise
MAX1471
315MHz/434MHz Low-Power, 3V/5V
ASK/FSK Superheterodyne Receiver
AC ELECTRICAL CHARACTERISTICS (continued)(Typical Application Circuit, AVDD= DVDD= HVIN= +2.4V to +3.6V, fRF= 300MHz to 450MHz, TA= -40°C to +125°C, unless otherwise
Note 3:The oscillator register (0x3) is set to the nearest integer result of fXTAL/ 100kHz (see the Oscillator Frequency Registersection).
Note 4:Input impedance is measured at the LNAIN pin. Note that the impedance at 315MHz includes the 15nH inductive degeneration
from the LNA source to ground. The impedance at 434MHz includes a 10nH inductive degeneration connected from the LNA
source to ground. The equivalent input circuit is 50Ωin series with 2.2pF. The voltage conversion gain is measured with the
LNA input matching inductor, the degeneration inductor, and the LNA/mixer resonator in place, and does not include the IF fil-
ter insertion loss.
MAX1471
315MHz/434MHz Low-Power, 3V/5V
ASK/FSK Superheterodyne Receiver
Typical Operating Characteristics(Typical Application Circuit, AVDD= DVDD= HVIN= +3.0V, fRF= 434MHz, TA= +25°C, unless otherwise noted.)
