SI4709-C datasheet(1/40 Pages) SILABS

部件名	SI4709-C

功能描述	BROADCAST FM RADIO TUNER FOR PORTABLE APPLICATIONS

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制造商	SILABS [Silicon Laboratories]

网页	http://www.silabs.com

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1 / 40 page

Rev. 1.2 10/10

Si4708/09-C

B ROADCAST FM R ADIO TUNER FOR P ORTA BLE A PPLICATIONS

Features

Applications

Description

The Si4708/09 is the world's smallest FM broadcast receiver, integrating

the complete tuner function from antenna input to stereo audio output with

RDS (Si4709).

Functional Block Diagram

 Worldwide FM band support

(76–108 MHz)

 Digital low-IF receiver

 Frequency synthesizer with

integrated VCO

 Adjustable seek tuning

 Automatic frequency control

(AFC)

 Automatic gain control (AGC)

 Excellent overload immunity

 Signal strength measurement

 Programmable de-emphasis

(50/75 µs)

 Adaptive noise suppression

 Adjustable soft mute

 Volume control

 Line-level analog output

 32.768 kHz reference clock

 2-wire and 3-wire control

interface

 2.7 to 5.5 VD supply voltage

 2.7 to 5.5 VA supply voltage

 Integrated LDO regulator allows

direct connection to battery

 2.5 x 2.5 mm 16-pin QFN

package



Pb-free/RoHS compliant

 RDS/RBDS Processor (Si4709)

 Cellular handsets

 MP3 players

 Portable radios

 Portable navigation

 Consumer electronics

 Mobile Internet

devices

 USB FM radio

 PDAs

 Notebook PCs

 Net PCs

VIO

I

ADC

Q

ADC

Si4708/09

DSP

SCLK

SDIO

SEN

DAC

ROUT

LOUT

0 / 90

LOW-IF

RSSI

TUNE

GPIO

GPO

RST

RFGND

LNA

FMI

AFC

AGC

PGA

RCLK

REG

VA

VD

32.768 kHz

Headphone

Cable

RDS

(Si4709)

This product, its features, and/or its

architecture is covered by one or

more of the following patents, as well

as

other

patents,

pending

and

issued, both foreign and domestic:

7,127,217;

7,272,373;

7,272,375;

7,321,324;

7,355,476;

7,426,376;

7,471,940; 7,339,503; 7,339,504.

Notes:

1. To ensure proper operation and FM

receiver performance, follow the

guidelines in

“AN350: Si4708/09

Antenna, Schematic, Layout, and

Design Guidelines" and “AN383:

Si47xx Antenna Selection and

Universal Layout Guidelines.” Silicon

Laboratories will evaluate schematics

and layouts for qualified customers.

2. Place Si4708/09 as close as possible

to antenna jack and keep the FMI

trace as short as possible.

Ordering Information:

See page 34.

Pin Assignments

(Top View)

Si4708/09-GM

GND

PAD

1

ROUT

RST

LOUT

SEN

GND

FMI

RFGND

VD

2

4

3

5

12

10

11

6

8

7

9

14

15

16

13

类似零件编号 - SI4709-C

制造商	部件名	数据表	功能描述
Skyworks Solutions Inc.	SI4709-C	412Kb / 39P	BROADCAST FM RADIO TUNER FOR PORTABLE APPLICATIONS Revision 0.6 to Revision 1.0
Skyworks Solutions Inc.	SI4709-C-GM	412Kb / 39P	BROADCAST FM RADIO TUNER FOR PORTABLE APPLICATIONS Revision 0.6 to Revision 1.0

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类似说明 - SI4709-C

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