SI4311-B11-GM Silicon Laboratories Inc, SI4311-B11-GM Datasheet

SI4311-B11-GM

Manufacturer Part Number

SI4311-B11-GM

Description

SI4311-B11-GM

Manufacturer

Silicon Laboratories Inc

Datasheet

1.SI4311-B11-GM.pdf (20 pages)

Specifications of SI4311-B11-GM

Lead_time

Pack_quantity

490

Comm_code

85423990

Current page: 1 of 20
Download datasheet (197Kb)

315/433.92 MH

Features



Applications



Description

The Si4311 is a fully-integrated FSK CMOS RF receiver that operates in the

unlicensed 315 and 433.92 MHz ultra high frequency (UHF) bands. It is designed

for high-volume, cost-sensitive RF receiver applications, such as set-top box RF

receivers, remote controls, garage door openers, home automation, security,

remote keyless entry systems, wireless POS, and telemetry. The Si4311 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.

Functional Block Diagram

Rev. 0.6 9/10

2.7 – 3.6 V

Single chip receiver with only six

external components

Selectable 315/433.92 MHz carrier

frequency

Supports FSK modulation

High sensitivity (–104 dBm @ 5 kbps)

Excellent interference rejection

Selectable IF bandwidths

Automatic Frequency Centering (AFC)

Satellite set-top box receivers

Remote controls, IR

replacement/extension

Garage and gate door openers

Home automation and security

Antenna

This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

RX_IN

VDD

GND

LNA

AGC

LDO

PGA

AFC

FSK R



Data rates up to 10 kbps

Direct battery operation with on-

chip low drop out (LDO) voltage

regulator

16 MHz crystal oscillator support

3x3x0.85 mm 20L QFN package

(RoHS compliant)

–40 to +85 °C temperature range

Remote keyless entry

After market alarms

Telemetry

Wireless point of sale

Toys

16 MHz

XTAL

ADC

OSC

ADC

PROCESSOR

BASEBAND

SQUELCH

ECEIVER

MCU

DSP

Si4311

DOUT

AFC

315/434

DEV[1:0]

BT[1:0]

RST

Patents pending

RFGND

RX_IN

VDD

AFC

RST

Ordering Information:

Pin Assignments

See page 14.

(Top View)

S i 4 3 11

Si4311

GND

PAD

15 BT0

Si4311

BT1

DOUT

GND

VDD

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