AT86RF212 datasheet(3/173 Pages) ATMEL

3 / 173 page

8168A-AVR-06/08

AT86RF212

Figure 1-1. AT86RF212 Block Diagram

Voltage

Regulator

LNA

Frequency

Synthesis

PPF

BPF

ADC

AGC

RX BBP

TX Power

TRX Buffer

Configuration Registers

SPI

(Slave)

TX BBP

IRQ

CLKM

DIG1

/RST

SLP_TR

/SEL

MISO

MOSI

SCLK

RFN

DIG2

FTN,

BATMON

XOSC

Analog Domain

Digital Domain

Mixer

LPF

DAC

RFP

AES

Control Logic

DIG3/4

The receiver path is based on a low-IF architecture. After channel filtering and down-

conversion the low-IF signal is sampled and applied to the digital signal processing part.

Communication between transmitter and receiver is based on direct sequence spread

spectrum with different modulation schemes and spreading codes. The AT86RF212

supports the IEEE 802.15.4-2006 standard mandatory BPSK modulation and optional

O-QPSK modulation in the 800 and 900 MHz band. For applications not necessarily

targeting IEEE compliant networks the radio transceiver supports proprietary High Data

Rate Modes based on O-QPSK.

A single 128 byte TRX buffer stores receive or transmit data.

The AT86RF212 features hardware supported 128 bit security operation. The

standalone AES encryption/decryption engine can be accessed in parallel to all PHY

operational modes. Configuration of the AT86RF212, reading, and writing of data

memory as well as the AES hardware engine are controlled by the SPI interface and

additional control signals.

On-chip low-dropout voltage regulators provide the analog and digital 1.8 V power

supply. Control registers retain their settings in SLEEP mode when the regulators are

turned off. The RX and TX signal processing paths are highly integrated and optimized

for low power consumption.

AT86RF212 数据表(PDF) 3 Page - ATMEL Corporation

AT86RF212 数据表(HTML) 3 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载