SI4704-D60 Datasheet, PDF (1/39 Pages) Silicon Laboratories – BROADCAST FM RADIO RECEIVER WITH RDS/RBDS

Si4704/05-D60
BROADCAST FM RADIO RECEIVER WITH RDS/RBDS
Features
 Worldwide FM band support
 FM digital tuning
(64–108 MHz)
 EN55020 compliant
 Excellent real-world performance  No manual alignment necessary
 Integrated VCO
 Programmable reference clock
 Advanced FM seek tuning
 Adjustable soft mute control
 Automatic frequency control (AFC)  RDS/RBDS processor (Si4705-D60)
 Automatic gain control (AGC)
 Digital audio out
 Digital FM stereo decoder
 2-wire and 3-wire control interface
 Programmable de-emphasis
 Integrated LDO regulator
 Advanced Audio Processing
 QFN and SSOP packages
RoHS compliant
Applications
 Table and portable radios
 Mini/micro systems
 CD/DVD and Blu-ray players
 Stereo boom boxes
Description
 Modules for consumer electronics
 Clock radios
 Mini HiFi and docking stations
 Entertainment systems
The Si4704/05-D60 digital CMOS FM radio receiver IC integrates the complete
tuner function from antenna input to digital audio output, enabling a cost efficient
digital audio platform for consumer electronic applications with high TDMA noise
immunity, superior radio performance, and high fidelity audio power amplification.
Functional Block Diagram
FM Antenna
FMI
RFGND
32.768 kHz
RCLK
2.7~5.5 V (QFN) / 2.0~5.5 V (SSOP) VA
+
GND
Si4704/05-D60
LNA
AGC
RDS
(Si4705) DIGITAL
AUDIO
LOW-IF
DOUT
DFS
GPO/DCLK
0/90
Mux
ADC
DAC
DSP
AFC
Mux
ADC
DAC
ROUT
LOUT
LDO
CONTROL
INTERFACE
VD
1.62 - 3.6 V
Ordering Information:
See page 29.
Pin Assignments
Si4704/05-D60 (QFN)
NC 1 20 19 18 17 16
FMI 2
15 DOUT
RFGND 3
LPI 4
GND
PAD
14 LOUT/[DFS]
13 ROUT/[DOUT]
RST 5
12 GND
6 7 8 9 10 11 VA
Si4704/05-D60 (SSOP)
DOUT 1
DFS 2
GPO3/[DCLK] 3
GPO2/[INT] 4
GPO1 5
NC
6
NC 7
FMI
8
RFGND 9
NC 10
LPI 11
NC 12
24 LOUT/[DFS]
23 ROUT/[DOUT]
22 DBYP
21 VA
20 VD
19 RCLK
18 SDIO
17 SCLK
16 SEN
15 RST
14 GND
13 GND
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.
Rev. 1.2 8/13
Copyright © 2013 by Silicon Laboratories
Si4704/05-D60