Industry's Smallest 300MHz to 450MHz Transmitter in SOT23 Package Consumes Only 5.5mA at +10dBm Output
| Status |
| Active: In Production. |
| 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. |
An evaluation kit is available: MAX1472EVKIT
| 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
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|
- Radio-Controlled Toys
- Remote Keyless Entry (RKE)
- RF Remote Controls
- Security Systems
- Tire-Pressure Monitoring (TPM)
- Wireless Computer Peripherals
- Wireless Game Consoles
- Wireless Sensors
|
| Key Specifications: ISM RF Transmitters |
| Part Number |
Applications |
Band/ Freq.
(MHz) |
Features |
Footprint
(mm x mm) |
Smallest Available Pckg.
(mm2) |
Package/Pins |
Industry Qualified |
Price |
| max w/pins |
See Notes |
| MAX1472 |
RKE |
300 to 450 |
| 2.1V to 3.6V Single-Supply Operation |
| Output Power Adjustable to >+10dBm |
| Supports ASK with 90dBm Modulation Depth |
| Uses Small Low-Cost XTAL | |
3.0 x 3.0 |
9 |
|
Automotive - General |
$1.15 @1k |
| See All ISM RF Transmitters (10) |
| *At 50% duty cycle (315MHz, 2.7V supply, +10dBm output power) |
| Diagram |
Typical Application Circuit |
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