Datasheet > SI4721

SI4721

更新时间： 2024-11-06 04:04:47

品牌	Logo	应用领域
芯科 - SILICON		便携式无线
页数	文件大小	规格书
2页	201K
描述
Broadcast FM Radio Transceiver for Portable Applications

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中文翻译

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技术参数
数据手册

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SI4721 技术参数

生命周期：	Active	零件包装代码：	QFN
包装说明：	HVQCCN,	针数：	20
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.62	商用集成电路类型：	CONSUMER CIRCUIT
JESD-30 代码：	S-XQCC-N20	长度：	3 mm
功能数量：	1	端子数量：	20
封装主体材料：	UNSPECIFIED	封装代码：	HVQCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：	Not Qualified	座面最大高度：	0.6 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.7 V
表面贴装：	YES	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
宽度：	3 mm	Base Number Matches：	1

SI4721 数据手册

Si4720/21

Broadcast FM Radio Transceiver for Portable Applications

Description

Features

The Si4720/21 is the first single chip FM radio transceiver.

The proven and patented digital architecture of the Si4720/

21 combines the functionality of the Si470x FM radio

receiver with the Si471x FM transmitter, offering full FM

receive and transmit capabilities in a single, ultra-small

3x3x0.55 mm QFN package. The device leverages Silicon

Lab's highly successful and proven FM technology, and

offers unmatched integration and performance allowing FM

receive and transmit to be added to any portable device by

using a single chip. As with the Si470x and Si471x

products, the Si4720/21 offers industry leading size,

performance, low power consumption, and ease of use.

The Si4720/21's digital integration reduces the required

external components of traditional offerings, resulting in a

solution requiring only an external inductor and bypass

capacitor, and a PCB space of approximately 15 mm². The

Si4720/21 is layout compatible with Silicon Laboratories'

Si470x FM radio receivers, Si473x AM/FM radio receivers,

and the Si471x FM radio transmitter solutions, allowing a

single PCB layout to accommodate a variety of music

features. High yield manufacturability, unmatched

- Integrated FM antenna support

- Excellent real-world performance

- Only two external components required

- Worldwide FM band support (76 to 108 MHz)

- RDS/RBDS processor (Si4721)

- Frequency synthesizer with integrated VCO

- Adjustable seek parameters

- Adjustable mono/stereo blend

- Adjustable soft mute

- Programmable transmit output voltage control

- Audio dynamic range control

- Advanced modulation control

- Analog/digital audio interface

- Programmable reference clock input

- Programmable pre/de-emphasis (50/75 µs)

- 2-wire and 3-wire control interface

- Integrated LDO regulator

- 2.7 to 5.5 V supply voltage

- 3x3x0.55 mm 20-pin Pb-free QFN package

performance,

easy

design-in,

and

software

programmability are key advantages of the Si4720/21.

The Si4721 is the industry's first single-chip integrated FM

radio transceiver including both receive and transmit

support for the European Radio Data System (RDS) and

the U.S. Radio Broadcast Data System (RBDS). RDS

allows digital information sent from the broadcaster to be

displayed, such as station ID, song name and music

category. In Europe, alternate frequency (AF) information is

also provided to automatically change stations in areas

where broadcasters use multiple frequencies. In transmit

mode, digital information such as artist name, song title,

music category, and branded messaging can be

transmitted and displayed on any RDS/RBDS receiver.

Applications

- Cellular handsets/hands free

- MP3 players

- Portable media players

- GPS/navigation devices

- Satellite digital audio radios

- Personal computers

Users are responsible to adjust their system's radiated

power levels to comply with local regulations on RF

transmission (FCC, ETSI, ARIB, etc.).

Si472x

LIN

/DFS

Ant

TXO

120 uH

RIN

/DIO

Ant

ROUT

/DIO

ADC

DAC

FMI

LNA

AGC

PGA

AFC

DSP

RFGND

VDD

LOUT

/DFS

2.7–5.5 V

RDS

(Si4721)

CONTROL

INTERFACE

LDO

GPO

_C1GND

22 uF

FM Transceiver

1.18.07

中文翻译

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与SI4721相关器件

型号	品牌	获取价格	描述	数据表
SI4721-B20	SILICON	获取价格	BROADCAST FM RADIO TRANSCEIVER FOR PORTABLE APPLICATIONS
SI4721-B20-GM	SILICON	获取价格	RF and Baseband Circuit, 3 X 3 MM, 0.55 MM HEIGHT, LEAD FREE, QFN-20
SI4724	VISHAY	获取价格	N-Channel Synchronous MOSFETs With Break-Before-Make
SI4724CY	VISHAY	获取价格	N-Channel Synchronous MOSFETs
SI4724CY_05	VISHAY	获取价格	N-Channel Synchronous MOSFETs
SI4724CY-T1	VISHAY	获取价格	N-Channel Synchronous MOSFETs With Break-Before-Make
SI4724CY-T1-E3	VISHAY	获取价格	N-Channel Synchronous MOSFETs With Break-Before-Make
SI4726CY	VISHAY	获取价格	N-Channel Synchronous MOSFETs with Break-Before-Make
SI4728CY	VISHAY	获取价格	N-Channel Synchronous MOSFETs with Break-Before-Make
SI4728CY-T1	VISHAY	获取价格	IC BUF OR INV BASED PRPHL DRVR, PDSO16, SOP-16, Peripheral Driver

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