SI4701-B-EVB datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Development board/suite/development tools> SI4701-B-EVB

SI4701-B-EVB: DescriptionBOARD EVAL FOR SI4701; CategoryDevelopment board/suite/development tools; File Size357KB，42 Pages; ManufacturerSilicon Laboratories Inc

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BOARD EVAL FOR SI4701

SI4701-B-EVB Parametric

Parameter Name	Attribute value
type	FM radio
frequency	-
Supporting products/related products	Si4701
What's included	plate

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Si4730/31-C40

ROADCAST

AM/FM R

ADIO

ECEIVER

Features



Worldwide FM band support



EN55020 compliant



No manual alignment necessary



Programmable reference clock



Volume control



Adjustable soft mute control



RDS/RBDS processor (Si4731)



Optional digital audio out (Si4731)



2-wire and 3-wire control interface



Integrated LDO regulator



2.0 to 5.5 V supply voltage (SSOP)



2.7 to 5.5 V supply voltage (QFN)



Wide range of ferrite loop sticks and

GPO3/DCLK

VIO

LOUT

ROUT

DBYP

VDD

VIO

RCLK

SDIO

SCLK

SEN

RST

GND

(64–108 MHz)

Worldwide AM band support

(520–1710 kHz)

Excellent real-world performance

Freq synthesizer with integrated VCO

Advanced AM/FM seek tuning

Automatic frequency control (AFC)

Automatic gain control (AGC)

Digital FM stereo decoder

Programmable AVC max gain

Programmable de-emphasis

Seven selectable AM channel filters

AM/FM digital tuning

Ordering Information:

See page 31.

Pin Assignments

Si4730/31 (QFN)

GPO2/INT

GPO1

air loop antennas supported



QFN and SSOP packages



RoHS compliant

Applications



15 DOUT

Table and portable radios

Stereos

Mini/micro systems

CD/DVD players

Boom boxes



Modules



Clock radios



Mini HiFi



Entertainment systems

FMI 2

RFGND 3

AMI 4

RST 5

SEN

SCLK

SDIO

RCLK

GND

PAD

11 VDD

Description

The Si4730/31 is the first digital CMOS AM/FM radio receiver IC that integrates

the complete tuner function from antenna input to audio output.

Si4730/31 (SSOP)

DOUT

DFS

GPO3/DCLK

GPO2/INT

Functional Block Diagram

Si473x

AMI

ANT

RFGND

LNA

AGC

ADC

FMI

LNA

AGC

2.7– 5.5 V (QFN)

2.0– 5.5 V (SSOP) VDD

GND

LDO

AFC

ADC

DSP

DAC

LOUT

RDS

(Si4731)

LOW-IF

DIGITAL

AUDIO

(Si4731)

DOUT

DFS

GPO/DCLK

GPO1

FMI

RFGND

ANT

DAC

ROUT

AMI

CONTROL

INTERFACE

VIO

1.85–3.6 V

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.

SEN

Rev. 1.0 12/09

RCLK

SCLK

SDIO

RST

Si4730/31-C40

DFS

14 LOUT

13 ROUT

12 GND

Si4730/31-C40

ABLE

Section

ONTENTS

Page

1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2. Typical Application Schematic (QFN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3. Typical Application Schematic (SSOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

4. Bill of Materials (QFN/SSOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2. Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3. FM Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

5.4. AM Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

5.5. Digital Audio Interface (Si4731 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.6. Stereo Audio Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.7. De-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.8. Stereo DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

5.9. Soft Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.10. RDS/RBDS Processor (Si4731 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

5.11. Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.12. Seek . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.13. Reference Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.14. Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.15. GPO Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.16. Firmware Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

5.17. Reset, Powerup, and Powerdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.18. Programming with Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6. Commands and Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

7. Pin Descriptions: Si4730/31-GM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8. Pin Descriptions: Si4730/31-GU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

9. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

10. Package Markings (Top Marks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1. Si4730/31 Top Mark (QFN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.2. Top Mark Explanation (QFN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.3. Si4730/31 Top Mark (SSOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.4. Top Mark Explanation (SSOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

11. Package Outline: Si4730/31 QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

12. PCB Land Pattern: Si4730/31 QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

13. Package Outline: Si4730/31 SSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

14. PCB Land Pattern: Si4730/31 SSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

15. Additional Reference Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Rev. 1.0

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