AT86RF401E ATMEL [ATMEL Corporation], AT86RF401E Datasheet
AT86RF401E
Manufacturer Part Number
AT86RF401E
Description
Smart RF Wireless Data Microtransmitter
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT86RF401E.pdf
(52 pages)
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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 LiMnO
loop antenna to implement a complete on-off keyed (OOF) wireless RF data
transmitter.
Figure 1. Block Diagram
RF Frequency Range of 264–456 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
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)
XTAL/CLK
XTALB
AGND
AVDD
SUPERVISOR
OSCILLATOR
2
POWER
SUPPLY
coin cell (CR2032 or similar), three capacitors, an inductor and a tuned-
DETECTOR
CLOCK
RESET
WATCHDOG
LOW-VOLTAGE DETECT
BROWN-OUT PROTECT
PHASE
PRESCALER
FILTER
LOOP
24
128 Bytes EEPROM Data Memory
2 KB Flash Program Memory
VCO
AVR
RISC C
DATA
AMP
GAIN
TRIM
RF
ANTB
ANT
B
Smart RF
Wireless Data
Microtransmitter
AT86RF401
1424F–RKE–12/03
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