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SI4705-D50 Datasheet(PDF) 1 Page - Silicon Laboratories

No. de pieza SI4705-D50
Descripción Electrónicos  BROADCAST FM RADIO RECEIVER FOR CONSUMER
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Fabricante Electrónico  SILABS [Silicon Laboratories]
Página de inicio  http://www.silabs.com
Logo SILABS - Silicon Laboratories

SI4705-D50 Datasheet(HTML) 1 Page - Silicon Laboratories

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Rev. 1.0 12/10
Copyright © 2010 by Silicon Laboratories
Si4704/05-D50
Si4704/05-D50
B ROADCAST FM R ADIO R ECEIVER FOR C ONSUMER
E LECTRONICS
Features
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
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*
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
I2S Digital audio out
20-pin 3 x 3 mm QFN package

Pb-free/RoHS compliant
*Note: *For consumer electronics applications that require EN 55020 compliance,
use Si4704/05-D60.
Cellular handsets
Portable media devices
Dedicated data receiver
Personal navigation devices (PND)
GPS-enabled handsets and portable
devices
ADC
ADC
Si4704/05
DSP
DAC
DAC
ROUT
LOUT
AFC
GPO
RFGND
LNA
FMI
AGC
PGA
(TYP)
RCLK
REG
VA
2.7–5.5 V
FM Antenna
XTAL
OSC
LPI
32.768 kHz
0/90
DOUT
DCLK
DFS
CONTROL
INTERFACE
RSSI
RDS
(Si4705)
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.
Ordering Information:
See page 27.
Pin Assignments
GND
PAD
1
2
3
17
18
19
20
11
12
13
14
6
7
8
9
4
5
16
10
15 DOUT
LOUT
ROUT
GND
RST
NC
LPI
VA
FMI
RFGND
Si4704/05-GM
(Top View)


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