SI4012-B1-GT Silicon Laboratories Inc, SI4012-B1-GT Datasheet

SI4012-B1-GT

Manufacturer Part Number

SI4012-B1-GT

Description

IC TX 27-960MHZ FSK 3.6V 10MSOP

Manufacturer

Silicon Laboratories Inc

Series

EZRadio®r

Datasheets

1.SI4012-B1-GT.pdf (2 pages)

2.SI4012-B1-GT.pdf (50 pages)

Specifications of SI4012-B1-GT

Frequency

27MHz ~ 960MHz

Applications

Home Automation, Remote Sensing, RKE

Modulation Or Protocol

FSK, OOK

Data Rate - Maximum

100 kBaud

Power - Output

10dBm

Current - Transmitting

19.8mA

Data Interface

PCB, Surface Mount

Antenna Connector

PCB, Surface Mount

Features

Crystal-less Operation

Voltage - Supply

1.8 V ~ 3.6 V

Operating Temperature

-40°C ~ 85°C

Package / Case

10-MSOP Exposed Pad, 10-HMSOP, 10-eMSOP

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Memory Size

Other names

336-1975-5
SI4012-B1-GT

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Description

Silicon Laboratories’ Si4012 is a fully integrated crystal-less

CMOS high-data rate RF transmitter designed for the sub-GHz

ISM band. This chip is optimized for battery powered applications

requiring low standby currents and high output transmit power.

The device offers advanced radio features including continuous

frequency coverage from 27–960 MHz, adjustable output power of

up to +10 dBm, and data rates up to 100 Kbaud in FSK mode. The

Si4012’s high level of integration offers reduced BOM cost while

simplifying the overall system design.

The transmitter supports data streaming into the TX FIFO without

external MCU support. The digital transmit modulation and

automatic PA power ramping ensure precise transmit modulation

and reduced spectral splatter, ensuring compliance with FCC,

ETSI, and ARIB regulations. Additional system features such as

the low battery detector and 256 byte TX FIFO reduce overall

current consumption and allow the use of lower-cost system

MCUs. The Si4012 is optimized for wireless MBUS T1-mode.

The device leverages Silicon Labs' patented and proven crystal-

less oscillator technology and offers better than ±150 ppm carrier

frequency stability over the temperature range of 0 to + 70 °C and

±250 ppm carrier frequency stability over the industrial range of 

–40 to +85 °C without the use of an external crystal or frequency

reference. The Si4012 automatically calibrates the on-chip voltage

controlled oscillator (LCOSC) which forms the output carrier fre-

quency for process and temperature variations. An external 1-pin

crystal oscillator option is available for applications requiring

tighter frequency tolerances. The Si4012 is designed to work with

an MCU and a few passives to create a very low-cost system. Volt-

age regulators are integrated on-chip, which allows for a wide

range of operating supply voltage conditions from +1.8 to +3.6 V.

Digital integration reduces the amount of required external compo-

nents compared to traditional offerings. The high integration of the

Si4012 improves the system manufacturing reliability, quality, and

minimizes costs. This chip offers industry leading RF performance,

high integration, flexibility, low BOM, small board area, and ease of

design. No production alignment is necessary as all RF functions

are integrated into the device.

EZRadio

GPIO0/XTAL

nIRQ

SDA

SDN

SCL

LED

Si4012

CONTROLLER

INTERFACE

DIGITAL

SMBus

DIGITAL LOGIC

MODULATOR

DATA FIFO

256 BYTE

BANK

ANTENNA

TUNE

OOK

FSK

Features

Applications

LCOSC

Frequency Range = 27–960 MHz

FSK and OOK modulation

Output Power

Crystal-less operation

Data Rate

Power Supply = 1.8 to 3.6 V

TX 256 byte FIFO

Low battery detector

SMBus interface

–40 to +85 °C temperature range

10-pin MSOP, Pb free/RoHS compliant

Remote meter reading

Wireless MBUS T1-mode

Remote control

Remote keyless entry

Home security and alarm

Telemetry

Toy control

Home automation

Industrial control

Sensor networks

Health monitors

Maximum: +10 dBm

Configurable: –13 to +10 dBm

±150 ppm: 0 to + 70 °C

±250 ppm: –40 to + 85 °C

Optional crystal input for tighter tolerances

FSK: 0.1 to 100 Kbaud

OOK: 0.1 to 20 Kbaud

DIVIDER

RF ANALOG CORE

LPOSC

XTAL

OSC

TMR

SLP

Crystal-less RF Transmitter

BANDGAP

BATTERY

MONITOR

LDO

POR

AUTO

TUNE

TXP

TXM

VDD

GND

Si4012

6.18.10

Related parts for SI4012-B1-GT

SI4012-B1-GT Summary of contents

Page 1

... An external 1-pin crystal oscillator option is available for applications requiring tighter frequency tolerances. The Si4012 is designed to work with an MCU and a few passives to create a very low-cost system. Volt- age regulators are integrated on-chip, which allows for a wide range of operating supply voltage conditions from +1 ...

Page 2

... Dimensioning and tolerancing per ASME Y14.5M-1994. 3. This drawing conforms to JEDEC Outline MS012, variation ”BA.” 4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for Small Body Components. Copyright © 2010 by Silicon Laboratories Si4012 Min Typ Max Unit 1.8 — 3.6 V — ...

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