Datasheet

© 2009-2011 Microchip Technology Inc. Preliminary DS70590C-page 3
MRF49XA
Features
Fully Integrated Sub-GHz Transceiver
Supports Proprietary Sub-GHz Wireless Protocols
4-Wire Serial Peripheral Interface (SPI)
Compatible Interface
CMOS/TTL Compatible I/Os
Clock and Reset Signals for Microcontroller
Integrated 10 MHz Oscillator Circuitry
Integrated Low Battery Voltage Detector
Supports Power-Saving modes
Operating Voltage: 2.2V–3.8V
Low-Current Consumption, Typically:
- 11 mA in RX mode
- 15 mA in TX mode
-0.3 μA in Sleep mode
Industrial Temperature Range
16-Pin TSSOP Package
RF/Analog Features
Supports ISM Band Sub-GHz Frequency Ranges
(433 MHz, 868 MHz and 915 MHz)
Modulation Technique: FSK with Frequency
Hopping Spread Spectrum (FHSS) Capability
Supports High Data Rates:
- Digital mode 115.2 kbps, max.
- Analog mode 256 kbps, max.
Differential RF Input/Output:
- -110 dBm Typical Sensitivity with 0 dBm
Maximum Input Level
- +7 dBm Typical Transmit Output Power
High-Resolution Programmable Phase-Locked
Loop (PLL) Synthesizer
Integrated Power Amplifier
Integrated Low Phase Noise Voltage Controlled
Oscillator (VCO) Frequency
Synthesizer and PLL Loop Filter
Automatic Frequency Control (AFC)
Baseband Features
Supports Programmable TX Frequency Deviation
and RX Baseband Bandwidth (BBBW)
Analog and Digital RSSI Outputs with Dynamic
Range
RX Synchronous Pattern Recognition
16-Bit RX Data FIFO
Two 8-Bit TX Data Registers
Low-Power Duty Cycle mode
Advanced Adjacent Channel Rejection/Blocking
Capability
Internal Data and Clock Recovery
Supports Data Filtering
Data Quality Indicator (DQI)
Typical Applications
Home/Industrial Automation
Remote Control
Wireless PC Peripherals
Remote Keyless Entry
Vehicle Sensor Monitoring
Telemetry
Data Logging Systems
Remote Automatic Meter Reading
Security Systems for Home/Industrial
Environment
Automobile Immobilizers
Sports and Performance Monitoring
Wireless Toy Controls
Medical Applications
ISM Band Sub-GHz RF Transceiver