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Data Sheet

FULL DATA SHEET (PDF, 244kB) Download   E-Mail

Description

The MAX1472 is a crystal-referenced phase-locked loop (PLL) VHF/UHF transmitter designed to transmit OOK/ASK data in the 300MHz to 450MHz frequency range. The MAX1472 supports data rates up to 100kbps, and adjustable output power to more than +10dBm into a 50Ω load. The crystal-based architecture of the MAX1472 eliminates many of the common problems with SAW transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. Combined, these improvements enable better overall receiver performance when using a superheterodyne receiver such as the MAX1470 or MAX1473. The MAX1472 is available in a 3mm x 3mm 8-pin SOT23 package and is specified for the automotive (-40°C to +125°C) temperature range. An evaluation kit is available. Contact Maxim Integrated Products for more information.

Key Features		Applications/Uses
2.1V to 3.6V Single-Supply Operation Low 5.3mA Operating Supply Current* Supports ASK with 90dB Modulation Depth Output Power Adjustable to More than +10dBm Uses Small Low-Cost Crystal Small 3mm x 3mm 8-Pin SOT23 Package Fast-On Oscillator 220µs Startup Time *At 50% duty cycle (315MHz, 2.7V supply, +10dBm output power)		Radio-Controlled Toys Remote Keyless Entry (RKE) RF Remote Controls Security Systems Tire-Pressure Monitoring (TPM) Wireless Computer Peripherals Wireless Game Consoles Wireless Sensors

Diagram

Typical Application Circuit

Application Notes

Application Note 1017: How to Choose a Quartz Crystal Oscillator for the MAX1470 Superheterodyne Receiver - MAX1472 Application Note 1773: Designing Remote Keyless Entry (RKE) Systems - MAX1472 Application Note 1774: Remote Keyless Entry Systems Overview - MAX1472 Application Note 1954: Designing Output-Matching Networks for the MAX1472 ASK Transmitter - MAX1472 Application Note 1955: Fast Start-Up Oscillator (FOX) Boosts Superhet Performance - MAX1472 Application Note 3395: Requirements of Remote Keyless Entry (RKE) Systems - MAX1472 Application Note 3401: Matching Maxim's 300MHz to 450MHz Transmitters to Small Loop Antennas - MAX1472 Application Note 3435: Manchester Data Encoding for Radio Communications - MAX1472 Application Note 3587: FCC and ETSI Requirements for Short-Range UHF ASK-Modulated Transmitters - MAX1472 Application Note 3589: Power Amplifier Theory for High-Efficiency Low-Cost ISM-Band Transmitters - MAX1472 Application Note 3815: Radiated Power and Field Strength from UHF ISM Transmitters - MAX1472 Application Note 3928: Automotive Linear Regulators Minimize Quiescent Current - MAX1472

Evaluation Kits

MAX1472EVKIT

Design Guides

WIRELESS (PDF)

Reliability Reports

Show FIT data for: MAX1472 Request Reliability Report for: MAX1472

Software/Models

MAX1472 Gerber File

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-5 of 5
MAX1472	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1472AKA-TG05			SOT-23;8 pin;9 mm² Use pkgcode/variation: K8SN-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX1472AKA			SOT-23;8 pin;9 mm² Use pkgcode/variation: K8SN-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX1472AKA+			SOT-23;8 pin;9 mm² Dwg: 21-0078H (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1472AKA-T			SOT-23;8 pin;9 mm² Use pkgcode/variation: K8SN-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX1472AKA+T			SOT-23;8 pin;9 mm² Dwg: 21-0078H (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

Topmark Coding: MAX1472 New Product Press Release 2003-04-29

Related Products

MAX1470 315MHz Low-Power, +3V Superheterodyne Receiver MAX1473 315MHz/433MHz ASK Superheterodyne Receiver with Extended Dynamic Range

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