SI4705-B20-GM Silicon Laboratories Inc, SI4705-B20-GM Datasheet

SI4705-B20-GM

Manufacturer Part Number

SI4705-B20-GM

Description

IC FM RADIO TUNER 20-QFN

Manufacturer

Silicon Laboratories Inc

Datasheet

1.SI4705-B20-GM.pdf (2 pages)

Specifications of SI4705-B20-GM

Package / Case

20-QFN

Frequency

64MHz ~ 108MHz

Modulation Or Protocol

Applications

Cellular, MP3, PDAs, Portable Radios

Current - Receiving

19.2mA

Data Interface

PCB, Surface Mount

Antenna Connector

PCB, Surface Mount

Voltage - Supply

2.7 V ~ 5.5 V

Operating Temperature

-20°C ~ 85°C

Bus Type

2-Wire, 3-Wire

Minimum Frequency

76 MHz

Mounting Style

SMD/SMT

Operating Supply Voltage

2.7 V to 5.5 V

Supply Voltage (min)

2.7 V

Supply Voltage (max)

5.5 V

Minimum Operating Temperature

- 20 C

Maximum Operating Temperature

+ 85 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Features

Sensitivity

Memory Size

Data Rate - Maximum

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

336-1740

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

SI4705-B20-GMR

Manufacturer:

SILICON LABS/芯科

Quantity:

20 000

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Description

The Si4704/05 enhanced FM receiver is the most

advanced portable solution available today offering

embedded antenna support, digital audio out, worldwide

FM band support, and highly flexible, mature, and proven

FM functionality in a simple API. The Si4704/05

incorporates Silicon Labs' tuned-resonance antenna

technology for crystal clear FM reception in wire-free

device enclosures. Silabs' internationally patented tuned-

resonance technology allows embedded FM antennas

such as PCB traces, loops, stubs, or other devices to

perform

integrated Bluetooth to receive FM transmissions without

an external FM antenna, and transmit the FM content to

Bluetooth-enabled headsets. This is the best, most cost-

effective solution to enable wire-free FM reception.

The Si4705 also offers digital audio out for FM recording.

Content recorded over the Si4705 can be shared with

friends or played at a later time in MP3 format. The content

can also be tagged with RDS information, allowing song

name and artist labels to be displayed as is done with MP3

meta data. Using the digital audio out, the Si4705 can also

reduce total system power consumption by avoiding

unnecessary ADC/DAC conversions between the FM

receiver and the host processor.

The Si4704/05 truly supports worldwide FM bands, starting

at 64 MHz for Eastern European countries and extending

all the way to 108 MHz for the rest of the world. The device

supports channel spacing down to 10 kHz, and includes

advanced, proven seek functionality. All the Silicon Labs

proven FM receiver expertise is incorporated in the Si4704/

05, gained through thousands of designs with almost every

OEM and ODM in the world and over 100 million devices

shipped.

The Si4704/05 leverage Silicon Labs' internationally

patented and proven digital low-IF architecture, offering

proven functionality in a simple and mature API. The

device is offered in a highly reliable, ultra-small

3 x 3 x 0.55 mm 20-pin QFN and is layout compatible with

the full suite of Silicon Labs broadcast offerings including

FM Tuner

exceptionally

well,

Enhanced Broadcast FM Radio Receiver for Portable Applications

Headphone

32.768 kHz

2.7–5.5 V

Cable

enabling

RFGND

RCLK

VDD

FMI

LPI

devices

LNA

AGC

REG

AFC

XTAL

OSC

0/90

with

PGA

FM transmit, AM/FM/SW receive, weather band receive

and SAME decode, and unparalleled RDS data receivers.

The complete solution, including a minimal BOM, requires

less than 15 mm

competing solutions. The Si4705 incorporates Silicon Labs'

proven and widely adopted RDS processor, including

worldwide

detection, error correction, and other RDS functions. The

Si4705 RDS functionality is unmatched in the industry for

performance, on-chip processing, and worldwide adoption.

Features

Applications

RSSI

Worldwide FM band support (64~108 MHz)

Supports integrated antenna

Digital low-IF receiver

Excellent real-world performance

Frequency synthesizer with integrated VCO

Seek tuning

Automatic frequency control (AFC)

Automatic gain control (AGC)

Integrated LDO regulator

Minimal BOM

Adjustable seek parameters

Adjustable mono/stereo blend

Adjustable soft mute

RDS/RBDS decoder(Si4705 only)

Optional digital audio output (Si4705 only)

Programmable de-emphasis(50/75us)

Programmable reference clock input

Signal quality measurement

3 x 3 x 0.55 mm 20-pin Pb-free QFN package

Cellular handsets

MP3 players

Portable media players

Personal computers

Portable navigation devices

Consumer electronics

ADC

INTERFACE

CONTROL

(Si4705)

RDS

DSP

compliance,

Si4704/05

DAC

board area, or less than half that of other

LOUT

ROUT

GPO

DCLK

DOUT

DFS

all

symbol

Si4704/05

decoding,

4.02.08

error

Related parts for SI4705-B20-GM

SI4705-B20-GM Summary of contents

Page 1

... MP3 format. The content can also be tagged with RDS information, allowing song name and artist labels to be displayed as is done with MP3 meta data. Using the digital audio out, the Si4705 can also reduce total system power consumption by avoiding unnecessary ADC/DAC conversions between the FM receiver and the host processor ...

Page 2

... ROUT RST 5 12 GND 6 11 VDD Tuner Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders Test Condition (S+N)/ – > 1 MHz – AGC disabled ±200 kHz ± ...

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