MAX7034 315MHz/434MHz ASK Superheterodyne Receiver General Description Features The MAX7034 fully integrated low-power CMOS super- Optimized for 315MHz or 433.92MHz Band heterodyne receiver is ideal for receiving amplitude-shift- Operates from Single +3.3V/+5.0V Supply keyed (ASK) data in the 300MHz to 450MHz frequency Selectable Image-Rejection Center Frequency range (including the popular 315MHz and 433.92MHz fre- quencies). The receiver has an RF sensitivity of -114dBm. Selectable x64 or x32 f /f Ratio LO XTAL With few external components and a low-current power- Low (< 6.7mA) Operating Supply Current down mode, it is ideal for cost-sensitive and power-sensi- < 3.0A Low-Current Power-Down Mode for Efficient tive applications typical in the automotive and consumer Power Cycling markets. The MAX7034 consists of a low-noise amplifier 250s Startup Time (LNA), a fully differential image-rejection mixer, an on- chip phase-locked loop (PLL) with integrated voltage- Built-In 44dB RF Image Rejection controlled oscillator (VCO), a 10.7MHz IF limiting amplifier Excellent Receive Sensitivity Over Temperature stage with received-signal-strength indicator (RSSI), and -40C to +125C Operation analog baseband data-recovery circuitry. -40C to +105C Operation (3.0V to 3.6V Supply) The MAX7034 is available in a 28-pin (9.7mm x 4.4mm) TSSOP package and is specified over the automotive (-40C to +125C) temperature range. Ordering Information and Typical Application Circuit appear at end of data sheet. Applications Automotive Remote Home Automation Keyless Entry Remote Controls Pin Configuration Security Systems Local Telemetry Garage Door Openers Wireless Sensors TOP VIEW + XTAL1 1 28 XTAL2 AVDD 2 27 SHDN LNAIN 3 26 PDOUT LNASRC 4 25 DATAOUT AGND 5 24 V DD5 MAX7034 LNAOUT 6 23 DSP AVDD 7 22 DFFB MIXIN1 8 21 OPP MIXIN2 9 20 DSN AGND 10 19 DFO IRSEL 11 18 IFIN2 MIXOUT 12 17 IFIN1 DGND 13 16 XTALSEL DVDD 14 15 EN REG TSSOP 19-3109 Rev 4 11/16MAX7034 315MHz/434MHz ASK Superheterodyne Receiver Absolute Maximum Ratings V to AGND .....................................................-0.3V to +6.0V Continuous Power Dissipation (T = +70C) DD5 A AVDD to AGND ....................................................-0.3V to +4.0V 28-Pin TSSOP (derate 12.8mW/C above +70C) ..1025.6mW DVDD to DGND ....................................................-0.3V to +4.0V Operating Temperature Range ......................... -40C to +125C AGND to DGND ...................................................-0.1V to +0.1V Storage Temperature Range ............................ -65C to +150C IRSEL, DATAOUT, XTALSEL, Junction Temperature ......................................................+150C SHDN, EN REG to AGND ................. -0.3V to (V + 0.3V) Lead Temperature (soldering, 10s) .................................+300C DD5 All Other Pins to AGND ........................-0.3V to (V + 0.3V) Soldering Temperature (reflow) .......................................+260C DVDD 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. DC Electrical Characteristics (Typical Application Circuit, V = +4.5V to +5.5V, no RF signal applied. T = -40C to +125C, unless otherwise noted. Typical values DD5 A are at V = +5.0V and T = +25C, unless otherwise noted.) (Note 1) DD5 A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V +5.0V nominal supply voltage 4.5 5.0 5.5 V DD5 f = 315MHz 6.7 8.2 RF Supply Current I V = V mA DD SHDN DD5 f = 433MHz 7.2 8.7 RF Shutdown Supply Current I V = 0V 3 8 A SHDN SHDN Input-Voltage Low V 0.4 V IL V - DD5 EN REG, SHDN 0.4 Input-Voltage High V V IH V DVDD XTALSEL - 0.4 Input Logic Current High I 15 A IH V DVDD f = 433MHz, V = V RF IRSEL DVDD - 0.4 Image-Reject Select Voltage V V DVDD (Note 2) f = 375MHz, V = V /2 1.1 RF IRSEL DVDD - 1.5 f = 315MHz, V = 0V 0.4 RF IRSEL DATAOUT Voltage-Output Low V I = 10A 0.125 V OL SINK V - DD5 DATAOUT Voltage-Output High V I = 10A V OH SOURCE 0.125 Maxim Integrated 2 www.maximintegrated.com