MAX7044
PRODUCTION300MHz to 450MHz High-Efficiency, Crystal-Based +13dBm ASK Transmitter
Low-Power, 300MHz to 450MHz, Crystal-Based ASK Transmitter has +13dBm Output Power
- Part Models
- 2
- 1ku List Price
- Starting From $1.90
Part Details
- +2.1V to +3.6V Single-Supply Operation
- OOK/ASK Transmit Data Format
- Up to 100kbps Data Rate
- +13dBm Output Power into 50Ω Load
- Low 7.7mA (typ) Operating Supply Current*
- Uses Small, Low-Cost Crystal
- Small 3mm x 3mm 8-Pin SOT23 Package
- Fast-On Oscillator: 250µs Startup Time
The MAX7044 crystal-referenced phase-locked-loop (PLL) VHF/UHF transmitter is designed to transmit OOK/ASK data in the 300MHz to 450MHz frequency range. The MAX7044 supports data rates up to 100kbps, and provides output power up to +13dBm into a 50Ω load while only drawing 7.7mA at 2.7V.
The crystal-based architecture of the MAX7044 eliminates many of the common problems with SAW-based transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. The MAX7044 also features a low supply voltage of +2.1V to +3.6V. These improvements enable better overall receiver performance when using the MAX7044 together with a superheterodyne receiver such as the MAX1470 or MAX1473.
A simple, single-input data interface and a buffered clock-out signal at 1/16th the crystal frequency make the MAX7044 compatible with almost any microcontroller or code-hopping generator.
The MAX7044 is available in an 8-pin SOT23 package and is specified over the -40°C to +125°C automotive temperature range.
Applications
- Garage Door Openers
- Remote Keyless Entry (RKE)
- RF Remote Controls
- Security Systems
- Tire-Pressure Monitoring (TPM)
- Wireless Computer Peripherals
- Wireless Game Consoles
- Wireless Sensors
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 16
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX7044AKA+ | Small-Outline Transistor Package | ||
| MAX7044AKA+T | Small-Outline Transistor Package |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Nov 1, 2021 - 2209 ASSEMBLY |
||
| MAX7044AKA+ | PRODUCTION | |
| MAX7044AKA+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| ISM RF Receivers < 1GHz 1 | ||
| MAX1473 | PRODUCTION | 315MHz/433MHz ASK Superheterodyne Receiver with Extended Dynamic Range |
Tools & Simulations
Software Development 2
Evaluation Kits
Evaluation Kit for the MAX7044