si4707 Silicon Laboratories, si4707 Datasheet

si4707

Manufacturer Part Number

si4707

Description

Weather Band And Same Data Receiver

Manufacturer

Silicon Laboratories

Datasheet

1.SI4707.pdf (2 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Amily Shenzhen XNWY Technology Co., Ltd

Part Number:

si4707-B20-GMR

Current page: 1 of 2
Download datasheet (184Kb)

Description

The Si4707 is the industry's first weather band (WB) radio

receiver IC to include a specific area message encoding

(SAME) processor. Offering unmatched integration and

PCB space savings, the Si4707 requires only one external

component and less than 15 mm

in a tiny 3 x 3 mm QFN package, it eliminates the need for

a front-end tuner IC, external ADC, DSP processor, RAM,

and numerous discrete components found in traditional

SAME weather band radios. The Si4707 weather band

receiver provides the space savings and low power

consumption

delivering the high performance and design simplicity

desired for all weather alert radios.

Leveraging Silicon Laboratories' proven and patented

Si4700/01 FM tuner's digital low intermediate frequency

(low-IF) receiver architecture, the Si4707 delivers superior

RF performance combined with sophisticated digital

processing to yield best-in-class audio quality and SAME

data sensitivity.

The high integration and complete system production test

simplifies design in, increases system quality, and

improves manufacturability.

The Si4707 is a feature-rich solution including 1050 Hz

tone detection, automatic frequency control, dynamic

channel bandwidth filters, and digital tuning. In addition, the

Si4707 provides a programmable reference clock and

supports an I

and a Si4700/01 backwards compatible 3-wire control

interface.

The Si4707 incorporates a digital processor to provide

SAME data, advance error correction, and SAME data

quality metrics. Using this feature, the Si4707 enables

broadcast alert data such as severe thunderstorm warning

or flash flood watch to be displayed to the user.

Weather Band

C compatible 2-wire control interface, SPI,

necessary

Weather Band

32.768 kHz

2.7–5.5 V

Antenna

for

RFGND

portable

RCLK

VDD

of board area. Available

FMI

devices

LNA

AGC

REG

AFC

Weather Band and SAME Data Receiver

XTAL

OSC

0/90

while

PGA

Features

Applications

Weather band support (162.4–162.55 MHz)

SAME processor

1050 Hz alert tone detection

Excellent real-world performance

Freq synthesizer with integrated VCO

Automatic frequency control (AFC)

Automatic gain control (AGC)

Adaptive noise suppression

WB digital tuning

Low-IF direct conversion with no external ceramic

filters

Programmable reference clock

Volume control

Receive signal quality indicators (RSSI and SNR)

2-wire and 3-wire control interface

Integrated LDO regulator

2.7 to 5.5 V supply voltage

Firmware upgradeable

3 x 3 x 0.55 mm 20-pin QFN package

Emergency radios

Table and portable radios

Stereos

Mini/micro systems

Portable media players

Boom boxes

Cellular handsets

Modules

Clock radios

Mini HiFi

RSSI /

SNR

ADC

INTERFACE

CONTROL

Excellent SAME sensitivity

Byte-wise data quality metrics

Advanced error correction

Pb-free/RoHS compliant

SAME

DSP

DAC

GPO

Si4707

LOUT

ROUT

GPO

Si4707

4.2.08

Related parts for si4707

si4707 Summary of contents

Page 1

... Description The Si4707 is the industry's first weather band (WB) radio receiver IC to include a specific area message encoding (SAME) processor. Offering unmatched integration and PCB space savings, the Si4707 requires only one external 2 component and less than board area. Available in a tiny QFN package, it eliminates the need for ...

Page 2

... Symbol Millimeters Min Nom Max A 0.50 0.55 0.60 A1 0.00 0.02 0.05 b 0.18 0.25 0.30 c 0.27 0.32 0.37 D 3.00 BSC D2 1.60 1.70 1.80 e 0.50 BSC E 3.00 BSC E2 1.60 1.70 1.80 Copyright © 2008 by Silicon Laboratories Si4707 Min Typ Max Unit 162.4 — 162.55 MHz — 0.9 — µV EMF — 52 — dB — 45 — dB — 0.7 — µV EMF 2.7 — 5.5 V 1.5 — 3.6 V — 19.1 — ...

Related keywords

si4707 datasheet
si4707 data sheet
si4707 pdf datasheet
si4707 component
si4707 part
si4707 distributor
si4707 RoHS
si4707 datasheet download