CC1120_14 datasheet(3/40 Pages) TI1

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CC112X

MARC

Main Radio Control Unit

Ultra low power 16 bit

MCU

256 byte

FIFO RAM

buffer

4k byte

ROM

RF and DSP frontend

Packet handler

and FIFO control

Configuration and

status registers

eWOR

Enhanced ultra low power

Wake On Radio timer

SPI

Serial configuration

and data interface

Interrupt and

IO handler

System bus

LNA_P

LNA_N

90dB dynamic

range ADC

90dB dynamic

range ADC

High linearity

LNA

14dBm high

efficiency PA

XOSC

AGC

Automatic Gain Control, 60dB VGA range

RSSI measurements and carrier sense detection

Highly flexible FSK / OOK

demodulator

(optional bit clock)

(optional low jitter serial

data output for legacy

protocols)

Data interface with

signal chain access

XOSC_Q1

XOSC_Q2

Ultra low power 32kHz

auto-calibrated RC oscillator

(optional 32kHz

clock intput)

CSn (chip select)

SI (serial input)

SO (serial output)

SCLK (serial clock)

(optional GPIO0-3)

Fully integrated Fractional-N

Frequency Synthesizer

Output power ramping and OOK / ASK modulation

ifamp

(optional autodetected

external XOSC / TCXO)

(optional GPIO for

antenna diversity)

Battery sensor /

temp sensor

Power on reset

CC1120

www.ti.com

SWRS112F – JUNE 2011 – REVISED APRIL 2014

1.4

Functional Block Diagram

Figure 1-2 shows the system block diagram of the CC1120 devices.

Figure 1-2. Functional Block Diagram

1.5

Regulations

Suitable for Systems Targeting Compliance with:

•

Europe: ETSI EN 300 220, ETSI EN 54-25

•

US: FCC CFR47 Part 15, FCC CFR47 Part 90, 24, and 101

•

Japan: ARIB RCR STD-T30, ARIB STD-T67, ARIB STD-T108

1.6

Peripherals and Support Functions

•

Enhanced Wake-On-Radio (eWOR) functionality for automatic low-power receive polling

•

Includes functions for antenna diversity support

•

Support for retransmissions

•

Support for auto-acknowledge of received packets

•

TCXO support and control, also in power modes

•

Automatic Clear Channel Assessment (CCA) for Listen-Before-Talk (LBT) systems

•

Built-in coding gain support for increased range and robustness

•

Digital RSSI measurement

•

Temperature sensor

Device Overview

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