American Audio B20 Bedienungsanleitung

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Rev. 0.5 10/08 Copyright © 2008 by Silicon Laboratories Si473x-B20
Si473x-B20
BROADCAST MULTI-BAND RADIO RECEIVER
Features
Applications
Si473x Product Selector Guide
FM band support: 76–108 MHz
AM band support: 520–1710 kHz
SW band support: 2.3–21.85 MHz
(Si4734/35)
LW band support: 153–279 kHz
(Si4734/35)
Weather band support: 162.4–
162.55 MHz (Si4736/37/38/39)
1050 Hz alert tone detection
(Si4736/37/38/39)
Excellent real-world performance
Freq synthesizer with integrated VCO
Advanced seek tuning
Automatic frequency control (AFC)
Automatic gain control (AGC)
Integrated LDO regulator
Digital FM stereo decoder
Programmable de-emphasis
Adaptive noise suppression
AM/FM digital tuning
EN55020 compliant
No manual alignment necessary
Programmable reference clock
Volume control
Programmable soft mute control
RDS/RBDS processor
(Si4731/35/37/39)
Optional digital audio output
(Si4731/35/37/39)
2-wire control interface
2.7 to 5.5 V supply voltage
Firmware upgradeable
Wide range of ferrite loop sticks and
air loop antennas supported
3 x 3 x 0.55 mm 20-pin QFN package
Pb-free/RoHS compliant
Table and portable radios
Audio video receivers
Stereos
Mini/micro systems
CD/DVD players
Portable media players
Cellular handsets
Emergency radios
Clock radios
Modules
Mini HiFi
Boom boxes
Part FM AM RDS SW/LW WB
Si4730 76 – 108 MHz
Si4731 76 – 108 MHz 
Si4734 64 – 108 MHz 
Si4735 64 – 108 MHz 
Si4736 76 – 108 MHz 
Si4737 76 – 108 MHz 
Si4738 76 – 108 MHz
Si4739 76 – 108 MHz 
Patents Pending
Notes:
1. Place Si473x as close as
possible to antenna jack and
keep the FMI and AMI traces as
short as possible.
2. Contact your local sales
representatives for more
information or to obtain
application notes.
Ordering Information:
See page 18.
Pin Assignments
GND
PAD
1
2
3
17181920
11
12
13
14
6
7 8 9
4
5
16
10
15
GPO2/INT
VIO
DOUT
LOUT
ROUT
GNDRST
NC
AMI
RCLK
SDIO
VDD
FMI
RFGND
GPO3/DCLK
NC
GPO1
DFS
SCLK
SEN
Si473x-GM
(Top View)
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Inhaltsverzeichnis

Seite 1 - Si473x-B20

Rev. 0.5 10/08 Copyright © 2008 by Silicon Laboratories Si473x-B20Si473x-B20BROADCAST MULTI-BAND RADIO RECEIVERFeaturesApplicationsSi473x Product Sele

Seite 2

Si473x-B2010 Rev. 0.5Figure 4. Digital Audio Interface Timing Parameters, I2S ModeTable 6. Digital Audio Interface Characteristics(VDD = 2.7 to 5.5 V,

Seite 3 - TABLE OF CONTENTS

Si473x-B20Rev. 0.5 11Table 7. FM Receiver Characteristics1,2(VDD= 2.7 to 5.5 V, VIO= 1.5 to 3.6 V, TA= –20 to 85 °C)Parameter Symbol Test Condition Mi

Seite 4

Si473x-B2012 Rev. 0.5Seek/Tune Time6RCLK tolerance =100ppm— — 80 ms/channelPowerup Time6From powerdown — — 110 msRSSI Offset12Input levels of 8 and 60

Seite 5

Si473x-B20Rev. 0.5 13Table 8. AM/SW/LW Receiver Characteristics1(VDD = 2.7 to 5.5 V, VIO = 1.5 to 3.6 V, TA = –20 to 85 °C)Parameter Symbol Test Condi

Seite 6

Si473x-B2014 Rev. 0.5Table 9. WB Receiver Characteristics1(VDD = 2.7 to 5.5 V, VIO = 1.5 to 3.6V, TA = 25 °C) Parameter Symbol Test Condition Min Typ

Seite 7

Si473x-B20Rev. 0.5 153. Typical AM/FM Application SchematicNotes:1. Place C1 close to VDD pin.2. All grounds connect directly to GND plane on PCB.3.

Seite 8

Si473x-B2016 Rev. 0.54. Bill of MaterialsComponent(s) Value/Description SupplierC1 Supply bypass capacitor, 22 nF, ±20%, Z5U/X7R MurataC5 Coupling ca

Seite 9

Si473x-B20Rev. 0.5 175. Pin Descriptions: Si473x-GMGNDPAD123171819201112131467 8 945161015GPO2/INTVIODOUTLOUTROUTGNDRSTNCAMIRCLKSDIOVDDFMIRFGNDGPO3/D

Seite 10

Si473x-B2018 Rev. 0.56. Ordering GuidePart Number* Description PackageTypeOperatingTemperatureSi4730-B20-GM AM/FM Broadcast Radio Receiver QFNPb-free

Seite 11

Si473x-B20Rev. 0.5 197. Package Outline: Si473x QFNFigure 5 illustrates the package details for the Si473x. Table 11 lists the values for the dimensi

Seite 12

Si473x-B202 Rev. 0.5

Seite 13

Si473x-B2020 Rev. 0.58. PCB Land Pattern: Si473x QFNFigure 6 illustrates the PCB land pattern details for the Si473x family. Table 12 lists the value

Seite 14

Si473x-B20Rev. 0.5 21Table 12. PCB Land Pattern DimensionsSymbol Millimeters Symbol MillimetersMin Max Min MaxD 2.71 REF GE 2.10 —D2 1.60 1.80 W — 0.3

Seite 15

Si473x-B2022 Rev. 0.59. Additional Reference ResourcesContact your local sales representatives for more information or to obtain copies of the follow

Seite 16

Si473x-B20Rev. 0.5 23NOTES:

Seite 17 - Rev. 0.5 17

Si473x-B2024 Rev. 0.5CONTACT INFORMATIONSilicon Laboratories Inc.400 West Cesar ChavezAustin, TX 78701Tel: 1+(512) 416-8500Fax: 1+(512) 416-9669Toll F

Seite 18

Si473x-B20Rev. 0.5 3TABLE OF CONTENTSSection Page1. Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seite 19

Si473x-B204 Rev. 0.51. Product OverviewThe Si473x receivers are the industry's first fully-integrated multiband radio receiver ICs from antenna

Seite 20

Si473x-B20Rev. 0.5 5Table 2. Absolute Maximum Ratings1,2Parameter Symbol Value UnitSupply Voltage VDD –0.5 to 5.8 VInterface Supply Voltage VIO–0.5 to

Seite 21

Si473x-B206 Rev. 0.5Table 3. DC Characteristics (VDD = 2.7 to 5.5 V, VIO = 1.5 to 3.6 V, TA = –20 to 85 °C)Parameter Symbol Test Condition Min Typ Max

Seite 22

Si473x-B20Rev. 0.5 7Figure 1. Reset Timing Parameters for Busmode SelectTable 4. Reset Timing Characteristics1,2(VDD= 2.7 to 5.5 V, VIO= 1.5 to 3.6 V

Seite 23

Si473x-B208 Rev. 0.5Table 5. 2-Wire Control Interface Characteristics1,2,3(VDD = 2.7 to 5.5 V, VIO = 1.5 to 3.6 V, TA = –20 to 85 °C)Parameter Symbol

Seite 24 - CONTACT INFORMATION

Si473x-B20Rev. 0.5 9Figure 2. 2-Wire Control Interface Read and Write Timing ParametersFigure 3. 2-Wire Control Interface Read and Write Timing Diagra

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