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MAX7033

Maxim Integrated Products
Part Number MAX7033
Manufacturer Maxim Integrated Products
Description 315MHz/433MHz ASK Superheterodyne Receiver
Published Jun 10, 2009
Detailed Description 19-3273; Rev 1; 7/04 315MHz/433MHz ASK Superheterodyne Receiver with AGC Lock www.datasheet4u.com General Description ...
Datasheet PDF File MAX7033 PDF File

MAX7033
MAX7033

Overview
19-3273; Rev 1; 7/04 315MHz/433MHz ASK Superheterodyne Receiver with AGC Lock www.
datasheet4u.
com General Description 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 MAX7033 The MAX7033 fully integrated low-power CMOS superheterodyne receiver is ideal for receiving amplitudeshift-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 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 MAX7033 consists of a low-noise amplifier (LNA), a fully differential image-rejection mixer, an on-chip phaselocked 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 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 PART MAX7033EUI MAX7033ETJ* Ordering Information TEMP RANGE -40°C to +105°C -40°C to +105°C PIN-PACKAGE 28 TSSOP 32 Thin QFN-EP** Typical Application Circuit appears at end of data ...


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