SI4705-D50-GM Silicon Laboratories Inc, SI4705-D50-GM Datasheet

SI4705-D50-GM

Manufacturer Part Number

SI4705-D50-GM

Description

Manufacturer

Silicon Laboratories Inc

Datasheet

1.SI4705-D50-GM.pdf (34 pages)

Specifications of SI4705-D50-GM

Lead_time

Pack_quantity

490

Comm_code

85423990

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Features



*Note: *For consumer electronics applications that require EN 55020 compliance,

Applications



Description

The Si4704/05-D50 FM/RDS/RDBS receivers provide the highest performance

and lowest power consumption available for portable devices today. The 100%

CMOS IC integrates the complete FM and data receiver function from antenna to

analog or digital audio and data out in a single 3 x 3 mm 20-pin QFN.

Functional Block Diagram

Rev. 1.0 12/10

LECTRONICS

Worldwide FM band support

(64–108 MHz)

RDS/RBDS decoding engine

(Si4705 only)

Lowest power consumption

Received signal quality indicators

On-chip tuned resonance for

embedded antenna support

Multipath detection and mitigation

FM Hi-cut control

Advanced FM stereo-mono blend

Advanced audio processing

Not EN 55020 compliant*

Cellular handsets

Portable media devices

Dedicated data receiver

ROADCAST

use Si4704/05-D60.

FM Antenna

32.768 kHz

2.7–5.5 V

RFGND

(TYP)

RCLK

FMI

LPI

LNA

AGC

REG

AFC

F M R

XTAL

OSC

0/90

PGA



ADIO

Automatic gain control (AGC)

Integrated FM LNA

Image-rejection mixer

Frequency synthesizer with

integrated VCO

Low-IF direct conversion with no

external ceramic filters

2.7 to 5.5 V supply voltage

Dual 1.8 and 2.7 V power supplies

Stereo audio out

20-pin 3 x 3 mm QFN package



Personal navigation devices (PND)

GPS-enabled handsets and portable

devices

RSSI

S Digital audio out

ADC

INTERFACE

Pb-free/RoHS compliant

CONTROL

(Si4705)

RDS

DSP

Si4704/05

ECEIVER FOR

DAC

LOUT

ROUT

GPO

DCLK

DOUT

DFS

S i 4 7 0 4 / 0 5 - D 5 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 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.

RFGND

ON SUMER

RST

FMI

LPI

Ordering Information:

Pin Assignments

Si4704/05-GM

See page 27.

(Top View)

GND

PAD

Si4704/05-D50

15 DOUT

LOUT

ROUT

GND

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