ata5780 ATMEL Corporation, ata5780 Datasheet - Page 2

• Manufacturer Part Number: ata5780
• Description: Uhf Ask/fsk Receiver
• Manufacturer: ATMEL Corporation

1. General Product Description
1.1
1.2
1.2.1
2
Overview
Application
Atmel ATA5780 [Preliminary]
Target Applications
The Atmel
RF receiver. This IC contains the RF part, digital baseband and the AVR
The core is a low-power CMOS 8-bit microcontroller with enhanced RISC architecture. The
receiver is designed for ISM frequency bands in the 310MHz to 318MHz, 418MHz to 477MHz,
and 836MHz to 928MHz ranges respectively while featuring a high degree of integration,
which reduces the number of external elements. Outstanding RF performance and sophisti-
cated baseband signal processing enables robust wireless communication. The receiver is
designed using super heterodyne architecture with an integrated low-IF double quadrature
mixer. This architecture features high image rejection and excellent blocking performance. Its
flexible, configurable baseband signal processing also allows the receiver to operate in sev-
eral scanning, wake-up, and automatic self-polling scenarios. During scanning the IC can seek
specific message content (IDs) and in case of a valid telegram the data is stored in the FIFO
data buffer. The two fully independent receiving baseband paths enable receiving and pro-
cessing of two different incoming signals. The configuration of these signals can differ in
modulation, data rate or wake-up scenario. The autonomous scanning of three different appli-
cation channels with varying configuration is supported. The settings of the receiver are stored
in a 512-byte EEPROM. The device can be configured and accessed via an SPI interface.
The receiver is designed for use in the following application areas:
Because of its flexibility the receiver can combine up to three different application types in the
autonomous self-polling setting.
• Remote Keyless Entry System (RKE)
• Tire Pressure Monitoring System (TPMS)
• Remote Start System (RS)
• Remote Control System, e.g. garage door openers
• Smart RF Applications
®
ATA5780 is a universal, highly integrated, low-power UHF ASK/FSK single chip
®
microcontroller core.
9207BS–RKE–01/11