© Semiconductor Components Industries, LLC, 2016
April, 2016 − Rev. 3
1 Publication Order Number:
AX5051/D
AX5051
Advanced Multi-channel
Single Chip UHF Transceiver
OVERVIEW
The AX5051 is a true single chip low−power CMOS transceiver
primarily for use in SRD bands. The on−chip transceiver consists of a
fully integrated RF front−end with modulator, and demodulator. Base
band data processing is implemented in an advanced and flexible
communication controller that enables user−friendly communication
via the SPI interface.
Features
• Advanced Multi−channel Single Chip UHF Transceiver
• Configurable for Usage in 400−470 MHz and 800−940 MHz
SRD Bands
• Wide Variety of Shaped Modulations Supported in RX and TX
(ASK, PSK, MSK, FSK)
• Data Rates from 1 to 350 kbps (FSK, MSK), 1 to 600 kbps (ASK),
10 to 600 kbps (PSK)
• Ultra Fast Settling RF Frequency Synthesizer for Low−power
Consumption
• Variable Channel Filtering from 40 kHz to 600 kHz
• RF Carrier Frequency and FSK Deviation
Programmable in 1 Hz Steps
• Fully Integrated Frequency Synthesizer with VCO
Auto−ranging and Band−width Boost Modes for Fast
Locking
• Few External Components
• On−chip Communication Controller and Flexible
Digital Modem
• Channel Hopping up to 2000 hops/s
• Sensitivity down to −116 dBm at 1.2 kbps
• Up to +16 dBm Programmable Transmitter Power
Amplifier
• Crystal Oscillator with Programmable
Transconductance and Programmable Internal Tuning
Capacitors for Low Cost Crystals
• Automatic Frequency Control (AFC)
• SPI Micro−controller Interface
• Fully Integrated Current/Voltage References
• QFN28 Package
• Low Power Receiver: 18 − 21 mA in High Sensitivity
Mode and 16 − 18 mA in Low Power Mode
• Low Power Transmitter: 11 − 45 mA during Transmit
• Extended Supply Voltage Range 2.2 V − 3.6 V
• Internal Power−on−reset
• 32 Bit RX/TX Data FIFO
• Programmable Cyclic Redundancy Check
(CRC−CCITT, CRC−16, CRC−32)
• Optional Spectral Shaping Using a Self Synchronizing
Shift Register
• Brown−out Detection
• Integrated RX/TX Switching
• Differential Antenna Pins
• RoHS Compliant
Applications
• Telemetry
• Sensor Readout, Thermostats
• AMR
• Toys
• Wireless Audio
• Wireless Networks
• Wireless M−Bus
• Access Control
• Remote Keyless Entry
• Remote Controls
• Active RFID
• Compatible with FCC Part 15.247, FCC Part 15.249,
EN 300 220 Wide Band, Wireless M−Bus S/T Mode
868 MHz, Konnex RF, ARIB T−67, 802.15.4
www.onsemi.com
ORDERING INFORMATION
Device Type Qty
AX5051−1−TA05 Tape & Reel
500
AX5051−1−TW30 Tape & Reel 3,000
QFN28 5x5, 0.5P
CASE 485EF
28
1
