SI4731-B20-GMR Silicon Laboratories Inc, SI4731-B20-GMR Datasheet
SI4731-B20-GMR
Specifications of SI4731-B20-GMR
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SI4731-B20-GMR Summary of contents
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... 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 ...
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Si473x-B20 2 Rev. 0.5 ...
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T C ABLE O F ONTENTS Section 1. Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... FM stereo processing. In addition, the Si473x ICs provide a programmable reference clock and an I2C-compatible 2-wire control interface. The Si4731/35/37/39 incorporates a digital processor for the European Radio Data System (RDS) and the North American Radio Broadcast Data System (RBDS), including all required symbol decoding, block synchronization, error detection, and error correction functions ...
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Table 2. Absolute Maximum Ratings Parameter Supply Voltage Interface Supply Voltage 3 Input Current 3 Input Voltage Operating Temperature Storage Temperature 4 RF Input Level Notes: 1. Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. ...
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Si473x-B20 Table 3. DC Characteristics (V = 2 1 Parameter FM Mode Supply Current 1 Supply Current 2 RDS Supply Current WB Mode (Si4736/37/38/39 only) Supply Current 1 Supply ...
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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 selecting ...
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Si473x-B20 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 ...
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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 and ...
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Si473x-B20 Table 6. 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 ...
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Table 7. 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 Input ...
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Si473x-B20 Table 7. FM Receiver Characteristics (V = 2 1 Parameter 6 Seek/Tune Time 6 Powerup Time 12 RSSI Offset Notes: 1. Additional testing information is available in “AN388: ...
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Table 8. AM/SW/LW Receiver Characteristics (V = 2 1 – ° Parameter Symbol Input Frequency 2,3,4,5, 6 Sensitivity 5,7 Large Signal Voltage Handling Power Supply Rejection ...
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Si473x-B20 Table 9. WB Receiver Characteristics (V = 2.7 to 5.5 V, VIO = 1.5 to 3.6V Parameter Input Frequency 2,3 Sensitivity Adjacent Channel Selectivity 2,3,4,5 Audio S/N 6 Audio Frequency Response Low 6 Audio Frequency Response High ...
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Typical AM/FM Application Schematic FMIP FMI 3 RFGND L1 4 AMI AM antenna 5 C5 RST RST SEN SCLK SDIO RCLK VIO 1.5 to 3.6 V Notes: 1. Place C1 close to V pin ...
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Si473x-B20 4. Bill of Materials 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 Si473x AM/FM Radio Tuner T1 Transformer, 1–5 turns ratio L2 Air loop antenna, ...
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Pin Descriptions: Si473x-GM RFGND Pin Number(s) Name connect. Leave floating. 2 FMI FM/WB/SW 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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... Si473x-B20 6. Ordering Guide Part Number* Si4730-B20-GM AM/FM Broadcast Radio Receiver Si4731-B20-GM AM/FM Broadcast Radio Receiver with RDS/RBDS Si4734-B20-GM AM/FM/SW/LW Broadcast Radio Receiver Si4735-B20-GM AM/FM/SW/LW Broadcast Radio Receiver with RDS/RBDS Si4736-B20-GM AM/FM/WB Broadcast Radio Receiver Si4737-B20-GM AM/FM/WB Broadcast Radio Receiver with RDS/RBDS ...
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Package Outline: Si473x QFN Figure 5 illustrates the package details for the Si473x. Table 11 lists the values for the dimensions shown in the illustration. Figure 5. 20-Pin Quad Flat No-Lead (QFN) Symbol Millimeters Min Nom A 0.50 0.55 ...
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Si473x-B20 8. PCB Land Pattern: Si473x QFN Figure 6 illustrates the PCB land pattern details for the Si473x family. Table 12 lists the values for the dimensions shown in the illustration. 20 Figure 6. PCB Land Pattern Rev. 0.5 ...
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Table 12. PCB Land Pattern Dimensions Symbol Millimeters Min Max D 2.71 REF D2 1.60 1.80 e 0.50 BSC E 2.71 REF E2 1.60 1.80 f 2.53 BSC GD 2.10 — Notes: General 1. All dimensions shown are in millimeters ...
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Si473x-B20 9. 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 Layout ...
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N : OTES Si473x-B20 Rev. 0.5 23 ...
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