ATA578157825783familysummarydatasheet.pdf

需积分: 33 24 浏览量 2019-11-15 11:46:39 上传评论收藏 1.62MB PDF 举报

资源详情

资源评论

9286BS–RKE–06/13

This is a summary document.

The complete document is

available under NDA. For more

information, please contact

your local Atmel sales office.

Features

● AVR microcontroller core with 1Kbyte SRAM and 24Kbyte RF library in firmware

(ROM)

● Atmel

ATA5781: 20Kbyte of user Flash

● Atmel ATA5782: 20Kbyte of user ROM

● Atmel ATA5783: No user memory — RF library in firmware only

● Supported frequency ranges

● Low-Band 310MHz to 318MHz, 418MHz to 477MHz

● High-Band 836MHz to 956MHz

● 315.00MHz/433.92MHz/868.30MHz and 915.00MHz with one 24.305MHz crystal

● Low current consumption

● 9.8mA for RXMode (Low-Band), 1.2mA for 21ms cycle three-channel polling

● Typical OFFMode current of 5nA (maximum 600nA at Vs = 3.6V and T = 85°C)

● Supports the 0dBm class of ARIB STD-T96

● Input 1dB compression point

● –48dBm (full sensitivity level)

● –20dBm (active antenna damping)

● Programmable channel frequency with fractional-N PLL

● 93Hz resolution for Low-Band

● 185Hz resolution for High-Band

● FSK deviation ±0.375kHz to ±93kHz

● FSK sensitivity (Manchester coded) at 433.92MHz

● –108.5dBm at 20Kbit/s f = ± 20kHz BWIF = 165kHz

● –111dBm at 10Kbit/s f = ± 10kHz BWIF = 165kHz

● –114dBm at 5Kbit/s f = ± 5kHz BWIF = 165kHz

● –122.5dBm at 0.75Kbit/s f = ± 0.75kHz BWIF = 25kHz

● ASK sensitivity (Manchester coded) at 433.92MHz

● –110.5dBm at 20Kbit/s BWIF = 80kHz

● –125dBm at 0.5Kbit/s BWIF = 25kHz

● Programmable Rx-IF bandwidth 25kHz to 366kHz (approximately 10% steps)

● Blocking (BWIF = 165kHz): 64dBc at frequency offset = 1MHz and 48dBc at 225kHz

● High image rejection: 55dB at 315MHz/433.92MHz and 47dB at 868.3MHz/915MHz

without calibration

Atmel ATA5781/ATA5782/ATA5783

UHF ASK/FSK Receiver

SUMMARY DATASHEET

2Atmel ATA5781 [Summary DATASHEET]

9286BS–RKE–06/13

● Supported data rate in buffered mode 0.5Kbit/s to 80Kbit/s (120Kbit/s NRZ)

● Supports pattern-based wake-up and start of frame identification

● Flexible service configuration concept with on-the-fly (OTF) modification (in IDLEMode) of SRAM service parameters

(data rate, …)

● Each service consists of

● One service-specific configuration part

● Three channel-specific configuration parts

● Three service configurations are located in EEPROM

● Two service configurations are located in SRAM and can be modified via SPI or embedded application software

● Digital RSSI with very high relative accuracy of ±1dB thanks to digitized IF processing

● Programmable clock output derived from crystal frequency

● 1024byte EEPROM data memory for receiver configuration

● SPI interface for Rx data access and receiver configuration

● 500Kbit SPI data rate for short periods on SPI bus and host controller

● On demand services (SPI or API) without polling or telegram reception

● Integrated temperature sensor

● Self check and calibration with temperature measurement

● Configurable EVENT signal indicates the status of the IC to an external microcontroller

● Automatic low-power channel polling

● Flexible polling configuration concerning timing, order and participating channels

● Fast reaction time

● Power-up (typical 1.5ms, OFFMode -> RXMode)

● Supports mixed ASK/FSK telegrams

● Non-byte aligned data reception

● Software customization

● Antenna diversity with external switch via GPIO control

● Antenna diversity with internal SPDT switch

● Supply voltage ranges 1.9V to 3.6V and 2.4V to 5.5V

● Temperature range –40°C to +105°C

● ESD protection at all pins (±4kV HBM, ±200V MM, ±750V FCDM)

● Small 55mm QFN32 package/pitch 0.5mm

● Backward package and pin-to-pin compatibility with Atmel

ATA5780N

● Backward RF matching compatibility with Atmel ATA5780N (RF redesign not needed)

● Suitable for applications governed by EN 300 220 and FCC part 15, title 47

3Atmel ATA5781 [Summary DATASHEET]

9286BS–RKE–06/13

1. General Product Description

1.1 Introduction

The Atmel

ATA5781/2/3 is a highly integrated, low-power UHF ASK/FSK RF receiver with an integrated AVR microcontroller. It

is package and pin-to-pin compatible with the previous generation of RF devices (Atmel ATA5830N, ATA5831/2/3 and Atmel

ATA5780N).

The Atmel ATA5781/2/3 is partitioned into three sections; an RF front end, a digital baseband and the low-power 8-bit AVR

microcontroller. The product is designed for the ISM frequency bands in the ranges of 310MHz to 318MHz, 418MHz to 477MHz

and 836MHz to 956MHz. The external part count is kept to a minimum due to the very high level of integration in this device. By

combining outstanding RF performance with highly sophisticated baseband signal processing, robust wireless communication

can be easily achieved. The receive path uses a low-IF architecture with an integrated double quadrature receiver and digitized

IF processing. This results in high image rejection and excellent blocking performance. In addition, highly flexible and

configurable baseband signal processing allows the receiver to operate in several scanning, wake-up and automatic self-polling

scenarios. For example, during polling the IC can scan for specific message content (IDs) and save valid telegram data in the

FIFO buffer for later retrieval. The device integrates two receive paths that enable a parallel search for two telegrams with

different modulations, data rates, wake-up conditions, etc.

The Atmel ATA5781/2/3 implements a flexible service configuration concept and supports up to 15 channels. The channels are

grouped into five service configurations with three channels each. Three service configurations are located in the EEPROM.

Two service configurations are located in the SRAM to allow on-the-fly modifications during IDLEMode via SPI commands or

application software. The application software is located in the Flash for Atmel ATA5781 or in the ROM for Atmel ATA5782.

Highly configurable and autonomous scanning capability enables flexible polling scenarios with up to 15 channels. The

configuration of the receiver is stored in a 1024byte EEPROM. The SPI interface enables external control and device

reconfiguration.

In the Atmel ATA5781 the internal microcontroller with 20Kbyte user Flash can be used to add custom extensions to the Atmel

firmware. The Atmel ATA5782 provides 20Kbyte user ROM as a replacement for the 20Kbyte Flash for high-volume

applications. The Atmel ATA5783 embeds only the firmware ROM without user memory.

The debugWIRE and ISP interface are available for programming purposes.

Compatibility to the Atmel ATA5780N, Atmel ATA5830N and Atmel ATA5831/2/3

The Atmel ATA5781/2/3 is pin-to-pin compatible with the Atmel ATA5830N transceiver, the Atmel ATA5780N receiver and the

Atmel ATA5831/2/3 transceivers. The Rx performance of the receivers matches that of the transceivers.

Table 1-1. Program Memory Comparison of Atmel ATA5781/2/3 Devices

Device Atmel Firmware ROM User Flash User ROM

Atmel ATA5781 24Kbyte 20Kbyte -

Atmel ATA5782 24Kbyte - 20Kbyte

Atmel ATA5783 24Kbyte - -

4Atmel ATA5781 [Summary DATASHEET]

9286BS–RKE–06/13

1.2 System Overview

Figure 1-1. Circuit Overview

Figure 1-1 shows an overview of the main functional blocks of the Atmel

ATA5781/2/3. External control of the

Atmel ATA5781/2/3 is performed through the SPI pins SCK, MOSI, MISO, and NSS on port B. The configuration of the

Atmel ATA5781/2/3 is stored in the EEPROM and a large portion of the functionality is defined by the firmware located in the

ROM and processed by the AVR. An SPI command can trigger the AVR to configure the hardware according to settings that are

stored in the EEPROM and start up a given system mode (e.g., RXMode, or PollingMode). Internal events such as “Start of

Telegram” or “FIFO empty” are signaled to an external microcontroller on pin 28 (PB6/EVENT).

During the start-up of a service, the relevant part of the EEPROM content is copied to the SRAM. This allows faster access by

the AVR during the subsequent processing steps and eliminates the need to write to the EEPROM during runtime because

parameters can be modified directly in the SRAM. As a consequence the user does not need to observe the EEPROM

read/write cycle limitations.

It is important to note that all PWRON and NPWRON pins (PC1..5, PB4, PB7) are active in OFFMode. This means that even if

the Atmel ATA5781/2/3 is in OFFMode and the DVCC voltage is switched off, the power management circuitry within the

Atmel ATA5781/2/3 biases these pins with VS.

AVR ports can be used as button inputs, external LNA supply voltage (RX_ACTIVE), LED drivers, EVENT pin, switching control

for additional SPDT switches, general purpose digital inputs, or wake-up inputs, etc. Some functionality of these ports is already

implemented in the firmware and can be activated by adequate EEPROM configurations. Other functionality is available only

through custom software residing in the 20Kbyte Flash program memory (Atmel ATA5781) or in the 20Kbyte user ROM

program memory (Atmel ATA5782).

Rx DSP

Front End

RFIN

DATA BUS

SRC, FRC

Oscillators

Port B (8)XTO

XTAL

PB[7..0]

(SPI)

PC[5..0]

Port C (6)

AVR

Peripherals

AVR CPU

Supply

Reset

SRAM

ROM

Flash

EEPROM

剩余19页未读，继续阅读

评论收藏

内容反馈

ATA5781 5782 5783 family summary datasheet.pdf

评论0

最新资源

ATA5781 5782 5783 family summary datasheet.pdf

评论0

最新资源

相关推荐

ATA5781 ATA5782 ATA5783 UHF ASKFSK Receiver USER MANUAL.pdf

汽车电子中的基于 ATA663254的汽车LIN网络解决方案

ATA命令描述7.1版本

SiI3512 datasheet.pdf

ATA8-ACS-3中文版.pdf

d1410r3b-ATA-ATAPI-6.pdf

ATA SPEC 2000.pdf

ATA8-ACS-3.pdf

办公软件应用(ATA Office2010)中级解题步骤.pdf

计算机ATA考试中级第二套试题.pdf

计算机ATA考试中级第一套试题.pdf

dg_sata_hctl_ip_data_sheet_en.pdf

ATA300航空器材包装收集.pdf

ATA规范100[定义].pdf

计算机ATA考证第二套试题.pdf

SerialATA_Revision_3_3_Gold中文版.pdf

ATA70动力装置.pdf

SerialATA_SPEC_Revision_3_1_Gold.pdf

ATA300航空器材包装.pdf

ata5577规格书.pdf

SerialATA_Revision_3_2_Gold(with Links)SATA规范3.2.pdf

SolidWorks-Flexnet-Server.zip

(完整版)ST语言编程手册.pdf

数字孪生应用白皮书（2020版）.pdf

EPLAN部件库、EPLAN宏，近100G

工业触摸屏、组态等图库资源

2018功能安全（ISO26262）中英双语版.zip

FANUC机器人Socket Message通讯设置及使用手册（中文版）.pdf

eplan自带部件库ESS_part001.mdb