|
AT86RF401 Datasheet, PDF (1/52 Pages) ATMEL Corporation – Smart RF Wireless Data Microtransmitter | |||
|
Features
⢠RF Frequency Range of 264â456 MHz
⢠6 dBm RF Output into Matched Antenna
⢠RF Output Power Adjustable over 36 dB with 1 dB Resolution
⢠Phase-locked Loop (PLL) Based Frequency Synthesizer
⢠Supports OOK Modulation
⢠Data Bandwidth of Up to 10 Kbps Manchester
⢠2-volt Operation
⢠8-bit AVR RISC Microcontroller Core
⢠Minimal External Components
⢠Space-saving 20-lead TSSOP
⢠2 KB (1K x 16) of Flash Program Memory
⢠128 Bytes of EEPROM
⢠128 Bytes of SRAM
⢠In-system Programmable Data and Program Memory
⢠Six I/Os (Serial I/F, LED Drive Outputs, Button Input Interrupts)
⢠Low Battery Detect and Brown-out Protection
⢠Software Fine-tuning of VCO Tank Circuit
Applications
⢠Remote Keyless Entry (RKE) Transmitters
⢠Wireless Security Systems
⢠Home Applicance Control (Lighting Control, Ceiling Fans)
⢠Radio Remote Control (Hobby, Toys)
⢠Garage Door Openers
⢠Wireless PC Peripherals (Keyboard, Mouse)
⢠Telemetry (Tire Pressure, Utility Meter, Asset Tracking)
Description
The Atmel AT86RF401 Smart RF Microtransmitter is a highly integrated, low-cost RF
transmitter, combined with an AVR RISC microcontroller. It requires only a crystal, a
single LiMnO2 coin cell (CR2032 or similar), three capacitors, an inductor and a tuned-
loop antenna to implement a complete on-off keyed (OOF) wireless RF data
transmitter.
Figure 1. Block Diagram
Smart RF
Wireless Data
Microtransmitter
AT86RF401
XTAL/CLK
XTALB
OSCILLATOR
PHASE
DETECTOR
LOOP
FILTER
VCO
PRESCALER
÷ 24
B+
ANT
RF
AMP
ANTB
AVDD
AGND
POWER
SUPPLY
SUPERVISOR
CLOCK
RESET
WATCHDOG
LOW-VOLTAGE DETECT
BROWN-OUT PROTECT
DATA
GAIN
TRIM
AVR RISC µC
2 KB Flash Program Memory
128 Bytes EEPROM Data Memory
1424FâRKEâ12/03
|
▷ |