Manual De UsuarioTabla de contenidosFeatures1Applications1Description1Functional Block Diagram11. Electrical Specifications4Table 1. Recommended Operating Conditions4Table 2. Absolute Maximum Ratings1,24Table 3. DC Characteristics5Table 4. Reset Timing Characteristics1,2,36Figure 1. Reset Timing Parameters for Busmode Select6Table 5. 2-Wire Control Interface Characteristics1,2,37Figure 2. 2-Wire Control Interface Read and Write Timing Parameters8Figure 3. 2-Wire Control Interface Read and Write Timing Diagram8Table 6. 3-Wire Control Interface Characteristics9Figure 4. 3-Wire Control Interface Write Timing Parameters9Figure 5. 3-Wire Control Interface Read Timing Parameters9Table 7. SPI Control Interface Characteristics10Figure 6. SPI Control Interface Write Timing Parameters10Figure 7. SPI Control Interface Read Timing Parameters10Table 8. Digital Audio Interface Characteristics11Figure 8. Digital Audio Interface Timing Parameters, I2S Mode11Table 9. FM Receiver Characteristics1,212Table 10. 64–75.9 MHz Input Frequency FM Receiver Characteristics114Table 11. AM/SW/LW Receiver Characteristics115Table 12. Reference Clock and Crystal Characteristics162. Typical Application Schematic173. Bill of Materials184. Functional Description194.1. Overview19Figure 9. Functional Block Diagram194.2. Operating Modes204.3. FM Receiver204.4. AM Receiver204.5. SW Receiver204.6. LW Receiver204.7. Digital Audio Interface (Si4735 Only)214.7.1. Audio Data Formats214.7.2. Audio Sample Rates21Figure 10. I2S Digital Audio Format22Figure 11. Left-Justified Digital Audio Format22Figure 12. DSP Digital Audio Format224.8. Stereo Audio Processing23Figure 13. MPX Signal Spectrum234.8.1. Stereo Decoder234.8.2. Stereo-Mono Blending234.9. De-emphasis234.10. Stereo DAC234.11. Soft Mute234.12. RDS/RBDS Processor (Si4735 Only)234.13. Tuning244.14. Seek244.15. Reference Clock244.16. Control Interface24Table 13. Bus Mode Select on Rising Edge of RST244.16.1. 2-Wire Control Interface Mode244.16.2. 3-Wire Control Interface Mode254.16.3. SPI Control Interface Mode254.17. GPO Outputs264.18. Firmware Upgrades264.19. Reset, Power Up, and Power Down264.20. Programming with Commands265. Commands and Properties27Table 14. Si473x Command Summary27Table 15. Si473x Property Summary286. Pin Descriptions: Si4734/35-GM307. Ordering Guide318. Package Markings (Top Marks)328.1. Si4734/35 Top Mark328.2. Top Mark Explanation329. Package Outline: Si4734/35 QFN33Figure 14. 20-Pin Quad Flat No-Lead (QFN)33Table 16. Package Dimensions3310. PCB Land Pattern: Si4734/35 QFN34Figure 15. PCB Land Pattern34Table 17. PCB Land Pattern Dimensions3511. Additional Reference Resources36Document Change List37Contact Information38Tamaño: 300 KBPáginas: 38Language: EnglishManuales abiertas