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MAX7034

Maxim Integrated Products
Part Number MAX7034
Manufacturer Maxim Integrated Products
Description 315MHz/434MHz ASK Superheterodyne Receiver
Published Jun 10, 2009
Detailed Description 19-3109; Rev 0; 1/08 315MHz/434MHz ASK Superheterodyne Receiver www.datasheet4u.com General Description ♦ Operates fro...
Datasheet PDF File MAX7034 PDF File

MAX7034
MAX7034

Overview
19-3109; Rev 0; 1/08 315MHz/434MHz ASK Superheterodyne Receiver www.
datasheet4u.
com General Description ♦ Operates from Single +5.
0V Supply Features ♦ Optimized for 315MHz or 433.
92MHz Band ♦ Selectable Image-Rejection Center Frequency ♦ Selectable x64 or x32 fLO/fXTAL Ratio ♦ Low (< 6.
7mA) Operating Supply Current ♦ < 3.
0µA Low-Current Power-Down Mode for Efficient Power Cycling ♦ 250µs Startup Time ♦ Built-In 44dB RF Image Rejection ♦ Excellent Receive Sensitivity Over Temperature ♦ -40°C to +125°C Operation MAX7034 The MAX7034 fully integrated low-power CMOS superheterodyne receiver is ideal for receiving amplitudeshift-keyed (ASK) data in the 300MHz to 450MHz frequency range (including the popular 315MHz and 433.
92MHz frequencies).
The receiver has an RF sensitivity of -114dBm.
With few external components and a low-current power-down mode, it is ideal for cost-sensitive and power-sensitive applications typical in the automotive and consumer markets.
The MAX7034 consists of a low-noise amplifier (LNA), a fully differential image-rejection mixer, an on-chip phase-locked loop (PLL) with integrated voltage-controlled oscillator (VCO), a 10.
7MHz IF limiting amplifier stage with received-signal-strength indicator (RSSI), and analog baseband data-recovery circuitry.
The MAX7034 is available in a 28-pin TSSOP package and is specified over the automotive (-40°C to +125°C) temperature range.
Ordering Information PART TEMP RANGE PINPACKAGE 28 TSSOP (9.
7mm x 4.
4mm) PKG CODE U28-1 Applications Automotive Remote Keyless Entry Security Systems Garage Door Openers Home Automation Remote Controls Local Telemetry Wireless Sensors MAX7034AUI+T -40°C to +125°C +Denotes a lead-free package.
T = Tape-and-reel.
Typical Application Circuit appears at end of data sheet.
Pin Configuration TOP VIEW XTAL1 1 AVDD 2 LNAIN 3 LNASRC 4 AGND 5 LNAOUT 6 AVDD 7 MIXIN1 8 MIXIN2 9 AGND 10 IRSEL 11 MIXOUT 12 DGND 13 DVDD 14 + 28 XTAL2 27 SHDN 26 PDOUT 25 DATAOUT MAX7034 24 VDD5 23 DS...


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