Rainbow-electronics MAX7034 Uživatelský manuál stáhnout pdf

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

General Description

The MAX7034 fully integrated low-power CMOS super-

heterodyne receiver is ideal for receiving amplitude-

shift-keyed (ASK) data in the 300MHz to 450MHz

frequency range (including the popular 315MHz and

433.92MHz frequencies). The receiver has an RF sensi-

tivity of -114dBm. With few external components and a

low-current power-down mode, it is ideal for cost-sensi-

tive and power-sensitive applications typical in the

automotive and consumer markets. The MAX7034 con-

sists 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.

Features

♦ Optimized for 315MHz or 433.92MHz Band

♦ Operates from Single +5.0V Supply

♦ Selectable Image-Rejection Center Frequency

♦ Selectable x64 or x32 f

XTAL

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

315MHz/434MHz ASK Superheterodyne

Receiver

________________________________________________________________

Maxim Integrated Products

XTAL2

SHDN

PDOUT

DATAOUT

DSP

EN_REG

DFFB

OPP

DSN

DFO

IFIN2

IFIN1

XTALSEL

DGND

MIXOUT

IRSEL

AGND

MIXIN2

MIXIN1

LNAOUT

AGND

LNASRC

LNAIN

DD5

XTAL1

TSSOP

TOP VIEW

MAX7034

Pin Configuration

Ordering Information

Applications

19-3109; Rev 0; 1/08

Denotes a lead-free package.

T = Tape-and-reel.

Typical Application Circuit appears at end of data sheet.

PART TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX7034AUI+T -40°C to +125°C

28 TSSOP

(9.7mm x

4.4mm)

U28-1

Automotive Remote

Keyless Entry

Security Systems

Garage Door Openers

Home Automation

Remote Controls

Local Telemetry

Wireless Sensors

1 2 3 4 5 6 ... 12 13

Receiver 1

Shrnutí obsahu

Strany 1 - Receiver

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,or visit Maxim’s website at www.maxim-ic.com.General De

Strany 2

Data FilterThe data filter is implemented as a 2nd-order lowpassSallen-Key filter. The pole locations are set by the com-bination of two on-chip resis

Strany 3

Peak DetectorThe peak-detector output (PDOUT), in conjunction withan external RC filter, creates a DC output voltage equalto the peak value of the dat

Strany 4

MAX7034315MHz/434MHz ASK SuperheterodyneReceiver12 ______________________________________________________________________________________Chip Informat

Strany 5

MAX7034315MHz/434MHz ASK SuperheterodyneReceiverMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in

Strany 6

MAX7034315MHz/434MHz ASK SuperheterodyneReceiver2 _______________________________________________________________________________________ABSOLUTE MAXI

Strany 7

MAX7034315MHz/434MHz ASK SuperheterodyneReceiver_______________________________________________________________________________________ 3AC ELECTRICAL

Strany 8

MAX7034315MHz/434MHz ASK SuperheterodyneReceiver4 _______________________________________________________________________________________Note 1: 100%

Strany 9

MAX7034315MHz/434MHz ASK SuperheterodyneReceiver_______________________________________________________________________________________ 5Typical Opera

Strany 10

PHASE NOISEvs. OFFSET FREQUENCYMAX7033 toc13OFFSET FREQUENCY (Hz)PHASE NOISE (dBc/Hz)1M100k10k1k100-120-100-80-60-40-200-14010 10MfRF = 315MHzPHASE NO

Strany 11

MAX7034315MHz/434MHz ASK SuperheterodyneReceiver_______________________________________________________________________________________ 7Pin Descripti

Strany 12

MAX7034315MHz/434MHz ASK SuperheterodyneReceiver8 _______________________________________________________________________________________Functional Di

Strany 13

MAX7034315MHz/434MHz ASK SuperheterodyneReceiver_______________________________________________________________________________________ 9on the tank f

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Rainbow-electronics MAX7034 Uživatelský manuál

Procházejte online nebo si stáhněte Uživatelský manuál pro Komunikace Rainbow-electronics MAX7034. Rainbow Electronics MAX7034 User Manual Uživatelská příručka

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