SI4731-C40-GU Silicon Laboratories Inc, SI4731-C40-GU Datasheet
SI4731-C40-GU
Specifications of SI4731-C40-GU
Related parts for SI4731-C40-GU
SI4731-C40-GU Summary of contents
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... Programmable reference clock Volume control Adjustable soft mute control RDS/RBDS processor (Si4731) Optional digital audio out (Si4731) 2-wire and 3-wire control interface Integrated LDO regulator 2.0 to 5.5 V supply voltage (SSOP) 2.7 to 5.5 V supply voltage (QFN) ...
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Si4730/31-C40 2 Rev. 1.0 ...
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... AM Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 5.5. Digital Audio Interface (Si4731 Only 5.6. Stereo Audio Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.7. De-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.8. Stereo DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 5.9. Soft Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.10. RDS/RBDS Processor (Si4731 Only .23 5.11. Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.12. Seek . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.13. Reference Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.14. Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.15. GPO Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.16. Firmware Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 5 ...
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Si4730/31-C40 1. Electrical Specifications Table 1. Recommended Operating Conditions Parameter 2 Supply Voltage Interface Supply Voltage Power Supply Powerup Rise Time Interface Power Supply Powerup Rise Time Ambient Temperature Note: 1. All minimum and maximum specifications apply across the recommended ...
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Table 3. DC Characteristics (V = 2 1. Parameter FM Mode 1 Supply Current 2 Supply Current 1 RDS Supply Current AM Mode 1 Supply Current Supplies and Interface ...
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Si4730/31-C40 Table 4. Reset Timing Characteristics (V = 2 1. Parameter RST Pulse Width and GPO1, GPO2/INT Setup to RST GPO1, GPO2/INT Hold from RST Important Notes: 1. When ...
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Table 5. 2-Wire Control Interface Characteristics (V = 2 1. Parameter SCLK Frequency SCLK Low Time SCLK High Time SCLK Input to SDIO Setup (START) SCLK Input ...
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Si4730/31-C40 SU:STA HD:STA LOW 70% SCLK 30% 70% SDIO 30% START t r:IN Figure 2. 2-Wire Control Interface Read and Write Timing Parameters SCLK A6-A0, SDIO R/W START ADDRESS + R/W Figure 3. 2-Wire Control Interface Read ...
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Table 6. 3-Wire Control Interface Characteristics (V = 2 1. Parameter SCLK Frequency SCLK High Time SCLK Low Time SDIO Input, SEN to SCLKSetup SDIO Input to SCLKHold ...
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Si4730/31-C40 Table 7. SPI Control Interface Characteristics (V = 2 1. Parameter SCLK Frequency SCLK High Time SCLK Low Time SDIO Input, SEN to SCLKSetup SDIO Input to SCLKHold ...
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Table 8. Digital Audio Interface Characteristics (V = 2 1. Parameter DCLK Cycle Time DCLK Pulse Width High DCLK Pulse Width Low DFS Set-up Time to DCLK Rising Edge ...
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Si4730/31-C40 Table 9. FM Receiver Characteristics (V = 2 1. Parameter Input Frequency Sensitivity with Headphone 3,4,5 Network Sensitivity with 50 Network 3,4,5,6 6 RDS Sensitivity 6,7 LNA ...
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Table 9. FM Receiver Characteristics (V = 2 1. Parameter 3,4,5,6,12,13 Blocking Sensitivity 3,4,5,6,12,13 Intermode Sensitivity 6,10 Audio Output Load Resistance 6,10 Audio Output Load Capacitance 6 Seek/Tune Time ...
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Si4730/31-C40 Table 10. 64–75.9 MHz Input Frequency FM Receiver Characteristics (V = 2 1. Parameter Input Frequency Sensitivity with Headphone 3,4,5 Network 7 LNA Input Resistance 7 LNA Input ...
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Table 11. AM Receiver Characteristics (V = 2 1. – ° Parameter Symbol Input Frequency 3,4,5,6 Sensitivity Large Signal Voltage 4,6,7 Handling 6 Power Supply Rejection ...
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Si4730/31-C40 Table 12. Reference Clock and Crystal Characteristics (V = 2 1. Parameter 1 RCLK Supported Frequencies 2 RCLK Frequency Tolerance REFCLK_PRESCALE REFCLK Crystal Oscillator Frequency 2 Crystal Frequency ...
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Typical Application Schematic (QFN FMIP FMI 3 RFGND L1 4 AMI AM antenna 5 C5 RST RST SEN SCLK SDIO RCLK VIO 1.85 to 3.6 V Notes: 1. Place C1 close to V pin ...
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Si4730/31-C40 3. Typical Application Schematic (SSOP) Optional: Digital Audio Output R3 DOUT R2 C4 DFS R1 GPO3/DCLK GPO2/INT GPO1 NC NC FMI RFGND antenna AMI C5 X1 GPIO3 C2 C3 Optional: for crystal oscillator option Notes: ...
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Bill of Materials (QFN/SSOP) Component(s) C1 Supply bypass capacitor, 22 nF, ±20%, Z5U/X7R C5 Coupling capacitor, 0.47 µF, ±20%, Z5U/X7R L1 Ferrite loop stick, 180 U1 Si4730/31 AM/FM Radio Tuner T1 Transformer, 1–5 turns ratio L2 Air loop antenna, ...
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... In AM mode, radio signals are received on AMI and processed by the AM front-end circuitry. In addition to the receiver mode, there is a clocking mode to choose to clock the Si4730/31 from a reference clock or crystal. On the Si4731, there is an audio output mode to choose between an analog and/or digital audio output. Rev. 1.0 Si473x ...
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... AM air loop antennas which generally vary between 10 and 20 µH. 5.5. Digital Audio Interface (Si4731 Only) The digital audio interface operates in slave mode and supports three different audio data formats: 2 ...
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... Output left and right channels are obtained by adding and subtracting the (L+R) and (L–R) signals respectively. The Si4731 uses frequency information from the 19 kHz stereo pilot to recover the 57 kHz RDS/RBDS signal. 5.6.2. Stereo-Mono Blending ...
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... The Si4731 device is user configurable and provides an optional interrupt when RDS is synchronized, loses synchronization, and/or the user configurable RDS FIFO threshold has been met. The Si4731 reports RDS decoder synchronization status and detailed bit errors in the information word for each RDS block with the FM_RDS_STATUS command. The range of reportable block errors is 0, 1– ...
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Si4730/31-C40 RST is low, and the GPO2 pin includes an internal pull- down resistor, which is connected while RST is low. Therefore only necessary for the user to actively drive pins which differ from these states. See Table ...
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SPI Control Interface Mode When selecting SPI mode, the user must ensure that a rising edge of SCLK does not occur within 300 ns before the rising edge of RST. SPI bus mode uses the SCLK, SDIO, and SEN ...
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... Queries the status of the Received Signal Quality (RSQ) of the current channel. Returns RDS information for current channel and reads an entry from the RDS FIFO (Si4731 only). Selects the AM tuning frequency. Begins searching for a valid frequency. Queries the status of the RSQ of the current channel. ...
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Table 15. Selected Si473x Properties Prop Name 0x1100 FM_DEEMPHASIS FM_BLEND_STEREO_ 0x1105 THRESHOLD FM_BLEND_MONO_ 0x1106 THRESHOLD FM_RSQ_INT_ 0x1200 SOURCE 0x1300 FM_SOFT_MUTE_RATE FM_SOFT_MUTE_ 0x1302 MAX_ATTENUATION FM_SOFT_MUTE_ 0x1303 SNR_THRESHOLD FM_SEEK_BAND_ 0x1400 BOTTOM 0x1401 FM_SEEK_BAND_TOP FM_SEEK_FREQ_ 0x1402 SPACING FM_SEEK_TUNE_ 0x1403 SNR_THRESHOLD FM_SEEK_TUNE_ 0x1404 RSSI_TRESHOLD ...
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Si4730/31-C40 Table 15. Selected Si473x Properties (Continued) Prop Name 0x3401 AM_SEEK_BAND_TOP AM_SEEK_FREQ_ 0x3402 SPACING AM_SEEK_SNR_ 0x3403 THRESHOLD AM_SEEK_RSSI_ 0x3404 THRESHOLD 0x4000 RX_VOLUME 0x4001 RX_HARD_MUTE 28 Description Sets the top of the AM band for seek. Selects frequency spacing for AM ...
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Pin Descriptions: Si4730/31-GM RFGND Pin Number(s) Name connect. Leave floating. 2 FMI FM RF inputs. FMI should be connected to the antenna trace. 3 RFGND RF ground. Connect to ground plane on PCB. 4 AMI ...
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Si4730/31-C40 8. Pin Descriptions: Si4730/31-GU Pin Number(s) Name 1 DOUT Digital output data in digital output mode. 2 DFS Digital frame synchronization input in digital output mode. 3 GPO3/DCLK General purpose output, crystal oscillator, or digital bit synchronous clock input ...
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... AM/FM Broadcast Radio Receiver Si4731-C40-GM AM/FM Broadcast Radio Receiver with RDS/RBDS Si4731-C40-GU AM/FM Broadcast Radio Receiver with RDS/RBDS *Note: Add an “(R)” at the end of the device part number to denote tape and reel option; 2500 quantity per reel. SSOP devices operate down ° ...
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... Line 3 Marking: Circle = 0.5 mm Diameter (Bottom-Left Justified Year WW = Workweek 32 3140 CTTT YWW 30 = Si4730 Si4731 Firmware Revision 4. Revision C Die. Internal tracking code. Pin 1 Identifier. Assigned by the Assembly House. Corresponds to the last significant digit of the year and work week of the mold date. Rev. 1.0 ...
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... Top Mark Explanation (SSOP) Mark Method: YAG Laser Part Number Line 1 Marking: Die Revision Firmware Revision YY = Year Line 2 Marking Work week TTTTTT = Manufacturing code 4730C40GU YYWWTTTTTT 4730 = Si4730; 4731 = Si4731 Revision C die Firmware Revision 4.0. Assigned by the Assembly House. Rev. 1.0 Si4730/31-C40 33 ...
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Si4730/31-C40 11. Package Outline: Si4730/31 QFN Figure 14 illustrates the package details for the Si4730/31. Table 16 lists the values for the dimensions shown in the illustration. Figure 14. 20-Pin Quad Flat No-Lead (QFN) Symbol Millimeters Min Nom A 0.50 ...
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PCB Land Pattern: Si4730/31 QFN Figure 15 illustrates the PCB land pattern details for the Si4730/31-C40-GM QFN. Table 17 lists the values for the dimensions shown in the illustration. Figure 15. PCB Land Pattern Rev. 1.0 Si4730/31-C40 35 ...
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Si4730/31-C40 Table 17. PCB Land Pattern Dimensions Symbol Millimeters Min 2.10 Notes: General 1. All dimensions shown are in millimeters (mm) unless otherwise noted. 2. Dimensioning and Tolerancing is per the ...
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Package Outline: Si4730/31 SSOP Figure 16 illustrates the package details for the Si4730/31. Table 18 lists the values for the dimensions shown in the illustration. Dimension θ aaa bbb ...
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Si4730/31-C40 14. PCB Land Pattern: Si4730/31 SSOP Figure 17 illustrates the PCB land pattern details for the Si4730/31-C40-GU SSOP. Table 19 lists the values for the dimensions shown in the illustration. Table 19. PCB Land Pattern Dimensions Dimension C E ...
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Additional Reference Resources Contact your local sales representatives for more information or to obtain copies of the following references: EN55020 Compliance Test Certificate AN332: Si47xx Programming Guide AN383: Si47xx Antenna, Schematic, Layout, and Design Guidelines ...
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Si4730/31-C40 OCUMENT HANGE IST Revision 0.5 to Revision 0.7 Updated Table 3, “DC Characteristics,” on page 5. Updated Table 9, “FM Receiver Characteristics on page 12. Updated Table 15, “Selected Si473x Properties,” on page ...
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N : OTES Si4730/31-C40 Rev. 1.0 41 ...
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