Audio power amplifier evaluation module with lc filter (12 pages)
Summary of Contents for Texas Instruments TPA3220
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User's Guide SLAU756 – January 2018 TPA3220 Evaluation Module Micro This user's guide describes the characteristics, operation, and use of the TPA3220 Evaluation Module Micro. A complete printed-circuit board (PCB) description, schematic diagram, and bill of materials (BOM) are also included.
Indicator Overview (CLIP_OTW and FAULT) The TPA3220EVM-Micro is equipped with LED indicators that illuminate when the FAULT or CLIP_OTW pin goes low. See Table 3 TPA3220 100-W Peak HD-Audio, Analog-Input, Class-D for more details. Table 3. Fault and Clip Overtemperature Status FAULT LED...
J7 and J8 puts the TPA3220 into BTL mode (2 × stereo outputs). Tying the IN2_M and IN2_P pins to GND by populating R22 and R26 puts the TPA3220 into PBTL mode (1 × mono output). This is summarized in Table Table 6.
This power mode is the default setup when the board is tested and shipped. The user can connect any valid supply voltage to J1 and the onboard LDOs will generate the required non-PVDD voltages. PVDD itself always connects directly to the TPA3220 PVDD pins. Setup for this mode is the same as described Quick Start (BTL MODE) Table 8 shows how to configure the TPA3220EVM-Micro into this mode.
This circuit, combined with the RESET switch (S1) help ensure that the TPA3220 can be placed in reset easily, as needed, or automatically if there is a power supply issue.
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STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
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FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿6丁目24番1号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/ /www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 3.4 European Union 3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a low-voltage power-supply network that supplies buildings used for domestic purposes.
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IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products;...
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