SI4731-DEMO Silicon Laboratories Inc, SI4731-DEMO Datasheet

SI4731-DEMO

Manufacturer Part Number

SI4731-DEMO

Description

BOARD DEMO SI4731 RADIO RECEIVER

Manufacturer

Silicon Laboratories Inc

Type

Receiverr

Datasheet

1.SI4731-DEMO.pdf (14 pages)

Specifications of SI4731-DEMO

Frequency

520kHz ~ 1.71MHz, 64MHz ~ 108MHz

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

For Use With/related Products

SI4731

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

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Si4731 D

2. Overview

The Silicon Laboratories Si4731-DEMO board provides a complete portable AM/FM radio design with numerous

enhanced features that demonstrate the capabilities of the Silicon Laboratories AM/FM and MCU product families.

The Si4731-DEMO comes in a 3x3 mm 20-pin QFN package and is layout compatible with the entire Silicon Labs

Si47xx radio family of FM receivers, transmitters, and transceivers. The host MCU is a Silicon Laboratories

C8051F930 with internal oscillator and built-in DC-DC converter. A 79 x 101 dot matrix LCD provides the flexibility

to display a variety of system information including RDS. The demo board can work with either one AA battery

using the dc-dc converter of the C8051F930 MCU or three AAA batteries.

Rev. 0.1 5/08

Worldwide FM band support, 76–108 MHz

Worldwide AM band support, 520–1710 kHz

Auto seek/auto scan

48 FM and 48 AM station presets

FM Radio Data Services (RDS) decoding (Pi Pty Ps RT CT AF displays)

Automatic set time/date function via RDS

Automatic Alternative Frequency (AF) switching

Automatic AM channel spacing detection

Single battery operation down to 0.9 V or three battery operation

Adjustable parameters include

Stereo/mono indicator

Volume control with mute function

AM/FM band and signal quality indicator display

Battery voltage indicator

Calendar display

3x4 matrix keypad interface

Direct input of station frequencies

Features

Tuning spacing

Seek SNR/RSSI thresholds

Soft mute SNR/RSSI thresholds

Channel filters

Stereo and mono blend thresholds

Band limits

De-emphasis (50 or 75 µs)

AM channel spacing detection threshold

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S i 4 7 3 1 - D E M O

Si4731-DEMO

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