MAX7033(2004) 查看數據表（PDF） - Maxim Integrated

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MAX7033
(Rev.:2004)

315MHz/433MHz ASK Superheterodyne Receiver with AGC Lock

Maxim Integrated 

19-3273; Rev 1; 7/04

315MHz/433MHz ASK Superheterodyne

Receiver with AGC Lock

General Description

The MAX7033 fully integrated low-power CMOS super-

heterodyne receiver is ideal for receiving amplitude-

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

frequency range. The receiver has an RF input signal

range of -114dBm to 0dBm. With few external compo-

nents and a low-current power-down mode, it is ideal

for cost-sensitive and power-sensitive applications typi-

cal in the automotive and consumer markets. The

MAX7033 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 ana-

log baseband data-recovery circuitry. The MAX7033

also has a discrete one-step automatic gain control

(AGC) that reduces the LNA gain by 35dB when the RF

input signal exceeds -62dBm. The AGC circuitry offers

an externally controlled hold feature.

The MAX7033 is available in a 28-pin TSSOP package

and is specified over the extended (-40°C to +105°C)

temperature range.

Applications

Automotive Remote

Keyless Entry

Security Systems

Garage Door Openers

Home Automation

Remote Controls

Local Telemetry

Wireless Sensors

Typical Application Circuit appears at end of data sheet.

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

MAX7033

TSSOP

28 XTAL2

27 SHDN

26 PDOUT

25 DATAOUT

24 VDD5

23 DSP

22 DFFB

21 OPP

20 DSN

19 DFO

18 IFIN2

17 IFIN1

16 XTALSEL

15 AC

Features

♦ Optimized for 315MHz or 433MHz Band

♦ Operates from Single +3.3V or +5.0V Supplies

♦ High Dynamic Range with On-Chip AGC

♦ AGC Hold Circuit

♦ 1ms AGC Release Time

♦ Selectable Image-Rejection Center Frequency

♦ Selectable x64 or x32 fLO/fXTAL Ratio

♦ Low 5.2mA Operating Supply Current

♦ <3.5µA Low-Current Power-Down Mode for

Efficient Power Cycling

♦ 250µs Startup Time

♦ Built-In 44dB RF Image Rejection

♦ Better than -114dBm Receive Sensitivity

♦ -40°C to +105°C Operation

Ordering Information

PART

TEMP RANGE PIN-PACKAGE

MAX7033EUI

MAX7033ETJ*

-40°C to +105°C

-40°C to +105°C

28 TSSOP

32 Thin QFN-EP**

*Future product—contact factory for availability.

**EP = Exposed paddle.

Pin Configurations

N.C. 1

AGND 2

LNAOUT 3

AVDD 4

MIXIN1 5

MIXIN2 6

AGND 7

IRSEL 8

MAX7033

24 DATAOUT

23 VDD5

22 DSP

21 N.C.

20 DFFB

19 OPP

18 DSN

17 DFO

THIN QFN

________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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