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 (9.7mm x 4.4mm)

TSSOP package and is specified over the automotive

(-40°C to +125°C) temperature range.

Features

o Optimized for 315MHz or 433.92MHz Band

o Operates from Single +5.0V Supply

o Selectable Image-Rejection Center Frequency

o Low (< 6.7mA) Operating Supply Current

o < 3.0µA Low-Current Power-Down Mode for

Efficient Power Cycling

o 250µs Startup Time

o Built-In 44dB RF Image Rejection

o Excellent Receive Sensitivity Over Temperature

o -40°C to +125°C Operation

315MHz/434MHz ASK Superheterodyne

Receiver

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Maxim Integrated Products

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28

27

26

25

24

23

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21

20

19

18

17

16

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

XTAL2

SHDN

PDOUT

DATAOUT

DSP

EN_REG

DFFB

OPP

DSN

DFO

IFIN2

IFIN1

XTALSEL

DVDD

DGND

MIXOUT

IRSEL

AGND

MIXIN2

MIXIN1

AVDD

LNAOUT

AGND

LNASRC

LNAIN

AVDD

XTAL1

TSSOP

TOP VIEW

MAX7034

+

Pin Configuration

Ordering Information

Applications

19-3109; Rev 2; 5/11

/V denotes an automotive qualified part.

+

Denotes a lead(Pb)-free/RoHS-compliant package.

T = Tape and reel.

Typical Application Circuit appears at end of data sheet.

PART

TEMP RANGE

PIN-PACKAGE

MAX7034AUI/V+T

-40

°C to +125°C

28 TSSOP

Automotive Remote

Keyless Entry

Security Systems

Garage Door Openers

Home Automation

Remote Controls

Local Telemetry

Wireless Sensors