Silicon Laboratories SI4734/35-B20 Specifications

Rev. 1.0 4/08 Copyright © 2008 by Silicon Laboratories Si4734/35-B20Si4734/35-B20BROADCAST AM/FM/SW/LW RADIO RECEIVERFeaturesApplicationsDescriptionTh

Si4734/35-B2010 Rev. 1.0Figure 6. SPI Control Interface Write Timing ParametersFigure 7. SPI Control Interface Read Timing ParametersTable 7. SPI Cont

Si4734/35-B20Rev. 1.0 11Figure 8. Digital Audio Interface Timing Parameters, I2S ModeTable 8. Digital Audio Interface Characteristics(VDD = 2.7 to 5.5

Si4734/35-B2012 Rev. 1.0Table 9. 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

Si4734/35-B20Rev. 1.0 13Seek/Tune Time6RCLK tolerance =100ppm— — 80 ms/channelPowerup Time6From powerdown — — 110 msRSSI Offset12Input levels of 8 and

Si4734/35-B2014 Rev. 1.0Table 10. 64–75.9 MHz Input Frequency FM Receiver Characteristics1(VDD = 2.7 to 5.5 V, VIO = 1.5 to 3.6 V, TA = –20 to 85 °C)P

Si4734/35-B20Rev. 1.0 15Table 11. 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 C

Si4734/35-B2016 Rev. 1.0Table 12. Reference Clock and Crystal Characteristics(VDD = 2.7 to 5.5 V, VIO = 1.5 to 3.6 V, TA = –20 to 85 °C)Parameter Symb

Si4734/35-B20Rev. 1.0 172. Typical Application SchematicNotes:1. Place C1 close to VDD pin.2. All grounds connect directly to GND plane on PCB.3. P

Si4734/35-B2018 Rev. 1.03. Bill of MaterialsComponent(s) Value/Description SupplierC1 Supply bypass capacitor, 22 nF, ±20%, Z5U/X7R MurataC4 Capacito

Si4734/35-B20Rev. 1.0 194. Functional Description4.1. OverviewFigure 9. Functional Block DiagramThe Si4734/35 is the industry's first fully int

Si4734/35-B202 Rev. 1.0

Si4734/35-B2020 Rev. 1.04.2. Operating ModesThe Si4734/35 operates in either an FM receive or anAM/SW/LW receive mode. In FM mode, radio signalsare r

Si4734/35-B20Rev. 1.0 214.7. Digital Audio Interface (Si4735 Only)The digital audio interface operates in slave mode andsupports three different audi

Si4734/35-B2022 Rev. 1.0Figure 10. I2S Digital Audio FormatFigure 11. Left-Justified Digital Audio FormatFigure 12. DSP Digital Audio FormatLEFT CHANN

Si4734/35-B20Rev. 1.0 234.8. Stereo Audio ProcessingThe output of the FM demodulator is a stereomultiplexed (MPX) signal. The MPX standard wasdevelop

Si4734/35-B2024 Rev. 1.04.13. TuningThe frequency synthesizer uses Silicon Laboratories’proven technology, including a completely integratedVCO. The

Si4734/35-B20Rev. 1.0 25word by driving SDIO low on the next falling edge ofSCLK. Although the Si4734/35 will respond to only a singledevice address,

Si4734/35-B2026 Rev. 1.0will be ignored by the device if the transaction isaborted.For details on timing specifications and diagrams, referto Figure 6

Si4734/35-B20Rev. 1.0 275. Commands and PropertiesTable 14. Si473x Command SummaryCmd Name Description0x01 POWER_UPPower up device and mode selection

Si4734/35-B2028 Rev. 1.0Table 15. Si473x Property Summary Prop Name Description Default0x0001 GPO_IEN Enables interrupt sources. 0x00000x0102 DIGITAL_

Si4734/35-B20Rev. 1.0 290x1502 RDS_CONFIG Configures RDS setting. 0x00000x3100 AM_DEEMPHASISSets de-emphasis time constant. Can be set to 50 us. De-em

Si4734/35-B20Rev. 1.0 3TABLE OF CONTENTSSection Page1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Si4734/35-B2030 Rev. 1.06. Pin Descriptions: Si4734/35-GMPin Number(s) Name Description1, 20 NC No connect. Leave floating.2FMIFM RF inputs.3 RFGND R

Si4734/35-B20Rev. 1.0 317. Ordering GuidePart Number* Description PackageTypeOperatingTemperatureSi4734-B20-GM AM/FM/SW/LW Broadcast Radio Receiver Q

Si4734/35-B2032 Rev. 1.08. Package Markings (Top Marks)8.1. Si4734/35 Top Mark8.2. Top Mark ExplanationMark Method: YAG LaserLine 1 Marking: Part N

Si4734/35-B20Rev. 1.0 339. Package Outline: Si4734/35 QFNFigure 14 illustrates the package details for the Si4734/35. Table 16 lists the values for t

Si4734/35-B2034 Rev. 1.010. PCB Land Pattern: Si4734/35 QFNFigure 15 illustrates the PCB land pattern details for the Si4734/35-GM. Table 17 lists th

Si4734/35-B20Rev. 1.0 35Table 17. PCB Land Pattern DimensionsSymbol Millimeters Symbol MillimetersMin Max Min MaxD 2.71 REF GE 2.10 —D2 1.60 1.80 W —

Si4734/35-B2036 Rev. 1.011. Additional Reference Resources EN55020 Compliance Test Certificate AN231: Si4700/01 Headphone and Antenna Interface AN

Si4734/35-B20Rev. 1.0 37DOCUMENT CHANGE LISTRevision 0.4 to Revision 1.0 Updated Table 1, “Recommended Operating Conditions,” on page 4. Updated Tab

Si4734/35-B2038 Rev. 1.0CONTACT INFORMATIONSilicon Laboratories Inc.400 West Cesar ChavezAustin, TX 78701Tel: 1+(512) 416-8500Fax: 1+(512) 416-9669Tol

Si4734/35-B204 Rev. 1.01. Electrical SpecificationsTable 1. Recommended Operating ConditionsParameter Symbol Test Condition Min Typ Max UnitSupply Vo

Si4734/35-B20Rev. 1.0 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 M

Si4734/35-B206 Rev. 1.0Figure 1. Reset Timing Parameters for Busmode SelectTable 4. Reset Timing Characteristics1,2,3(VDD= 2.7 to 5.5 V, VIO= 1.5 to

Si4734/35-B20Rev. 1.0 7Table 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 Symb

Si4734/35-B208 Rev. 1.0Figure 2. 2-Wire Control Interface Read and Write Timing ParametersFigure 3. 2-Wire Control Interface Read and Write Timing Dia

Si4734/35-B20Rev. 1.0 9Figure 4. 3-Wire Control Interface Write Timing ParametersFigure 5. 3-Wire Control Interface Read Timing ParametersTable 6. 3-W