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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TAS2764YBHT 데이터시트(PDF) 90 Page - Texas Instruments |
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TAS2764YBHT 데이터시트(HTML) 90 Page - Texas Instruments |
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90 / 107 page  Table 9-1. Recommended External Components (continued) COMPONENT DESCRIPTION SPECIFICATION MIN TYP MAX UNIT C4 PVDD Decoupling Capacitor Type X7R Capacitance, 20% Tolerance 100 nF Rated Voltage 20 V C5 AVDD Decoupling Capacitor Type X7R Capacitance, 20% Tolerance 4.7 µF Rated Voltage 6 V C6 DREG Decoupling Capacitor Type X7R Capacitance, 20% Tolerance 0.68 1 1.5 µF Rated Voltage 6 V C7 IOVDD Decoupling Capacitor Type X7R Capacitance, 20% Tolerance 1 µF Rated Voltage 6 V C8, C9 High-side Boost Capacitors Type X7R Capacitance, 20% Tolerance 68 100 120 nF Rated Voltage 6 V Lf1, Lf2 EMI Filter Inductors (optional). These are not recommended as it degrades THD+N performance. The TAS2764 device is a filter-less Class-D and does not require these bead inductors. Impedance at 100MHz 120 Ω DC Resistance 0.095 Ω DC Current 5 A Cf1, Cf2 EMI Filter Capacitors (optional, must use Lf2, Lf3 if Cf1, Cf2 used) Capacitance 1 nF 9.3 Design Requirements For this design example, use the parameters shown in Section 9.2. Table 9-2. Design Parameters DESIGN PARAMETER EXAMPLE VALUE Audio Input Digital Audio, I2S Current and Voltage Data Stream Digital Audio, I2S Mono or Stereo Configuration Mono Max Output Power at 1% THD+N, over temperature and frequency range ⋝10.5 W 9.4 Detailed Design Procedure 9.4.1 Mono/Stereo Configuration In this application, the device is assumed to be operating in mono mode. See Section 8.3.1 for information on changing the I2C address of the TAS2764 to support stereo operation. Mono or stereo configuration does not impact the device performance. 9.4.2 EMI Passive Devices The TAS2764 supports spread spectrum to minimize EMI. It is allowed to include passive devices on the Class- D outputs. The passive devices Lf1, Lf2, Cf1 and Cf2 from Figure 9-1 have recommended specifications provided in Table 9-1. The passive devices Lf1, Lf2, Cf1 and Cf2 have to be properly selected to maintain the stability of the output stage. See Section 8.4.5 for details. 9.5 Application Curves To be attached. TAS2764 SLOS998 – DECEMBER 2020 www.ti.com 90 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: TAS2764 |
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