SI4706-B20-GM Silicon Laboratories Inc, SI4706-B20-GM Datasheet

SI4706-B20-GM

Manufacturer Part Number

SI4706-B20-GM

Description

IC FM RADIO TUNER 20-QFN

Manufacturer

Silicon Laboratories Inc

Series

-r

Datasheets

1.SI4706-B-EVB.pdf (2 pages)

2.SI4706-B20-GM.pdf (15 pages)

Specifications of SI4706-B20-GM

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

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Bonase Electronics (HK) Co., Limited

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Description

The Si4706 is a 100% CMOS receiver integrated

circuit (IC), offering the full receive functionality from

antenna to RDS/RBDS data for use as a dedicated

data receiver. It is an ideal RDS/RBDS data receiver

for Traffic Message Channel (TMC) and Open Data

Applications (ODA) applications frequently used in

conjunction with GPS functionality. It offers a fully-

integrated decoder for the European RDS* and the

North American RBDS. It includes demodulation,

symbol decoding, advanced error correction, detailed

visibility to block-error rates (BLER), and decoder

reliability, synchronization status, and times. The

Si4706 provides complete, decoded, and error-

corrected RDS groups, up to 25 groups at a time in

four 16-bit registers.

The Si4706 incorporates a high performance RDS

decoder based on patented methodologies and

delivers excellent RDS sensitivity performance,

synchronization to RDS at high BLER levels, and

RDS data decoding with superior decoder reliability.

The Si4706 draws on Silicon Laboratories' broadcast

audio and corresponding patent portfolio using a

digital low intermediate frequency (low-IF) receiver

architecture proven by over 100 million broadcast

audio receivers shipped worldwide. The low-IF

architecture allows the Si4706 to deliver superior

performance while integrating the great majority of

external

solutions.

The Si4706 is the first FM radio receiver integrated

circuit to support an embedded antenna, which can

be integrated into the enclosure or PCB of a portable

device. For portable navigation devices, the Si4706

embedded antenna feature permits integration of the

traffic messaging antenna into the enclosure of the

portable device and eliminates the need for external

FM Data Receiver

components

required

Headphone

32.768 kHz

2.7–5.5 V

Cable

Integrated

Antenna

RFGND

RCLK

(TYP)

VDD

FMI

LPI

High-Performance FM RDS/RBDS Data Receiver

LNA

AGC

REG

AFC

competing

XTAL

OSC

0/90

PGA

antenna cables.

The Si4706 is feature-rich, providing both highly

automated

Laboratories' recommended settings, and extensive

programmability and flexibility for customized system

performance.

*Note: The term “RDS” will be used to mean “RDS/

RDBS” throughout this document.

Features

- Worldwide FM band support

- Advanced RDS decoding engine

- Unmatched RDS sensitivity

- Leading RDS synchronization metrics

- Highly reliable RDS decode

- RDS reception with FM mono broadcast

- Received signal quality indicators

- Supports integrated antenna

- Automatic gain control (AGC)

- Integrated FM LNA

- Image-rejection mixer

- Frequency synthesizer with integrated VCO

- Low-IF direct conversion with no external ceramic

- 2.7 to 5.5 V supply voltage

- Programmable reference clock

- 20-pin 3 x 3 mm QFN package

- Pb-free/RoHS compliant

- Stereo audio OUT

- I

Applications

- Personal navigation devices (PND)

- Dedicated data receiver

- GPS-enabled portable devices

RSSI

ADC

(76–108 MHz)

filters

INTERFACE

CONTROL

S Digital audio OUT

RDS

DSP

performance,

DAC

Si4706

LOUT

ROUT

GPO

DCLK

DOUT

DFS

according

Si4706

03.17.08

Silicon

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SI4706-B20-GM Summary of contents

Page 1

... The Si4706 is the first FM radio receiver integrated circuit to support an embedded antenna, which can be integrated into the enclosure or PCB of a portable device. For portable navigation devices, the Si4706 embedded antenna feature permits integration of the ...

Page 2

... BSC E 3.00 BSC E2 1.60 1.70 1.80 Notes: 1. All dimensions are shown in millimeters unless otherwise noted. 2. Dimensioning and tolerancing per ANSI Y14.5M-1994. Copyright © 2008 by Silicon Laboratories Si4706 Typ Max Unit 108 MHz 200 kHz 8 µV emf 99 dBµV emf 55 dB ...

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