MAX1473ETJ+ Maxim Integrated Products, MAX1473ETJ+ Datasheet
MAX1473ETJ+
Specifications of MAX1473ETJ+
Related parts for MAX1473ETJ+
MAX1473ETJ+ Summary of contents
Page 1
... Low-Current Power-Down Mode for Efficient Power Cycling o 250µs Startup Time o Built-In 50dB RF Image Rejection o Receive Sensitivity of -114dBm PART MAX1473EUI+ MAX1473ETJ+ Applications + Denotes a lead(Pb)-free/RoHS-compliant package. Security Systems * EP = Exposed pad. Home Automation Local Telemetry Functional Diagram and Typical Application Circuit appear Systems at end of data sheet ...
Page 2
ASK Superheterodyne Receiver with Extended Dynamic Range ABSOLUTE MAXIMUM RATINGS V to AGND.......................................................-0.3V to +6.0V DD5 AVDD to AGND .....................................................-0.3V to +4.0V DVDD to DGND .....................................................-0.3V to +4.0V AGND to DGND.....................................................-0.1V to +0.1V IRSEL, DATAOUT, XTALSEL, AGCDIS, PWRDN to ...
Page 3
ASK Superheterodyne Receiver with Extended Dynamic Range DC ELECTRICAL CHARACTERISTICS (5.0V OPERATION) ( Typical Application Circuit , V = 4.5V to 5.5V signal applied are 5.0V and T = +25°C.) (Note 1) ...
Page 4
ASK Superheterodyne Receiver with Extended Dynamic Range AC ELECTRICAL CHARACTERISTICS (continued) ( Typical Application Circuit , V = 3.0V to 3.6V, all RF inputs are referenced to 50Ω otherwise noted. Typical values are at V PARAMETER SYMBOL ...
Page 5
ASK Superheterodyne Receiver with Extended Dynamic Range AC ELECTRICAL CHARACTERISTICS (continued) ( Typical Application Circuit , V = 3.0V to 3.6V, all RF inputs are referenced to 50Ω otherwise noted. Typical values are at V PARAMETER SYMBOL ...
Page 6
ASK Superheterodyne Receiver with Extended Dynamic Range ( Typical Application Circuit , V = 3.3V SUPPLY CURRENT vs. SUPPLY VOLTAGE 5.6 +105°C 5.5 5.4 +85°C 5.3 +25°C 5.2 5.1 5.0 -40°C 4.9 3.0 3.1 3.2 3.3 3.4 ...
Page 7
ASK Superheterodyne Receiver with Extended Dynamic Range ( Typical Application Circuit , V = 3.3V NORMALIZED IF GAIN vs. IF FREQUENCY -10 -15 - FREQUENCY (MHz) REGULATOR VOLTAGE vs. REGULATOR CURRENT ...
Page 8
ASK Superheterodyne Receiver with Extended Dynamic Range PIN NAME TSSOP TQFN 1 29 XTAL1 1st Crystal Input. (See the Phase-Locked Loop section.) Positive Analog Supply Voltage. For +5V operation, pin 2 is the output of an on-chip +3.2V low-dropout ...
Page 9
ASK Superheterodyne Receiver with Extended Dynamic Range Detailed Description The MAX1473 CMOS superheterodyne receiver and a few external components provide the complete receive chain from the antenna to the digital output data. Depending on signal power and component selection, ...
Page 10
ASK Superheterodyne Receiver with Extended Dynamic Range Phase-Locked Loop The PLL block contains a phase detector, charge pump/integrated loop filter, VCO, asynchronous 64x clock divider, and crystal oscillator driver. Besides the crystal, this PLL does not require any external ...
Page 11
ASK Superheterodyne Receiver with Extended Dynamic Range In actuality, the oscillator pulls every crystal. The crys- tal’s natural frequency is really below its specified fre- quency, but when loaded with the specified load capacitance, the crystal is pulled and ...
Page 12
ASK Superheterodyne Receiver with Extended Dynamic Range MAX1473 DATA SLICER DSN DATAOUT DSP R1 C4 Figure 2. Generating Data Slicer Threshold Note that a long string of zeros or 1’s can cause the threshold to drift. ...
Page 13
ASK Superheterodyne Receiver with Extended Dynamic Range V DD3 THEN DD3 3.0V TO 3.6V CONNECTED 4.5V TO 5.5V CREATED BY LDO, AVAILABLE AT AVDD (PIN 2) C11 RF INPUT C1 ...
Page 14
ASK Superheterodyne Receiver with Extended Dynamic Range LNASRC AGCDIS LNAOUT AUTOMATIC 3 LNA LNAIN GAIN CONTROL 2 AVDD 3.2V REG 24 V DD5 7 AVDD DIVIDE 14 VCO DVDD BY 64 PHASE LOOP 13 DGND DETECTOR ...
Page 15
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © 2011 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...