SI4831-B30-GU Silicon Laboratories Inc, SI4831-B30-GU Datasheet

SI4831-B30-GU

Manufacturer Part Number

SI4831-B30-GU

Description

Manufacturer

Silicon Laboratories Inc

Datasheet

1.SI4831-B30-GU.pdf (20 pages)

Specifications of SI4831-B30-GU

Lead_time

Pack_quantity

490

Comm_code

85423990

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Features



Applications



Description

The Si4831/35-B30 is the 2nd generation mechanical-tuned digital CMOS

AM/FM/SW radio receiver IC that integrates the complete receiver function from

antenna input to audio output. Like other successful audio products from Silicon

Labs, Si4831/35-B30 offers unmatched integration and PCB space savings with

minimum external components and a small board area. The Si4831/35-B30

requires a simple application circuit and removes any requirements for manually

tuning components during the manufacturing process. The Si4831/35-B30 is a

very simple product to design, manufacture, and support across multiple product

lines. The receiver has very low power consumption, runs off two AAA batteries,

and delivers the performance benefits of digital tuning to the analog radio market.

Functional Block Diagram

Rev. 1.0 1/11

R O A D C A S T

(64–109 MHz)

Worldwide AM band support

(504–1750 kHz)

SW band support (Si4835 only)

(5.6–22 MHz)

Excellent real-world performance

EN55020-compliant

No manual alignment necessary

Flexible band selections

Table and portable radios

Stereos

Mini/micro systems

CD/DVD players

Boom boxes

Worldwide FM band support

FM/SW

ANT

2.0~3.6V

XTALI

VDD1/2

RFGND

AMI

FMI

LNA

AGC

REG

AFC

E C H A N I C A L

XTAL

OSC

0/90



ADC

Automatic frequency control (AFC)

Integrated LDO regulator

2.0 to 3.6 V supply voltage

Wide range of ferrite loop sticks and air

loop antennas supported

24-pin SSOP

RoHS-compliant

Supports station and stereo LED

indicators

Direct volume control

Bass and treble tone control

Modules

Clock radios

Mini HiFi

Entertainment systems

INTERFACE

CONTROL

DSP

U N I N G

Si4830/34

Si4831/35

DAC

ADC

LOUT

ROUT

TUNE 1/2

BAND

A M / F M / S W R

S i 4 8 3 1 / 3 5 - B 3 0

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

7,272,373;

7,355,476;

7,339,503; 7,339,504.

STATION

STEREO

RFGND

TUNE1

TUNE2

BAND

Ordering Information:

FMI

AMI

Si4831/35-B30 (SSOP)

and

Pin Assignments

A D I O

See page 13.

7,272,375;

7,426,376;

domestic:

Si4831/35-B30

EC EIVER

LOUT

ROUT

DBYP

VDD2

VDD1

XTALI

XTALO

VOL-/BASS

VOL+/TREBLE

RST

GND

7,127,217;

7,321,324;

7,471,940;

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