PCM2900C/2902C/2906CEVM-U User's Guide Literature Number: SBAU195 September 2011
Copyright © 2011, Texas Instruments Incorporated SBAU195 – September 2011 Submit Documentation Feedback
Contents 1 ......................................................................................................................... 5 ........................................................................................................... 6 1.2 Connectors and Jumpers ............................................................................................... 6 1.3 Switch Settings ..........................................................................................................
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User's Guide SBAU195 – September 2011 PCM2900C/2902C/2906CEVM-U 1 Description The PCM2900C/2902C/2906CEVM-U (PCM290xCEVM-U) is an evaluation board for Texas Instruments' newly developed USB interface codecs, the PCM2900C, PCM2902C, and PCM2906C. The PCM2900C includes a PCM2900C device, a bus-powered USB codec without an S/PDIF interface. The PCM2902C includes a PCM2902C device, a bus-powered USB codec with an S/PDIF interface.
Description 1.1 www.ti.com Block Diagram A block diagram of the PCM2900C/2902C/2906C is shown in Figure 1. 3.3 V REG CN002 S/PDIF IN S/PDIF OUT DIN DOUT CN001 VBUS USB Interface USB Connector D+/– CN101 Analog Out PCM2900C PCM2902C PCM2906C Lch OPA2353 LPF VOUTL/R Rch CN102 Analog In 12-MHz XTAL OPA2353 LPF VINL/R Lch Rch SW001 - SW003 Operation Control Figure 1. PCM290xCEVM-U Block Diagram 1.2 Connectors and Jumpers Table 1 summarizes the connectors and jumpers on the PCM290xCEVM-U.
Schematic and PCB www.ti.com 2 Schematic and PCB This section presents the PCM290xCEVM-U PCB layout. A full-size schematic of the evaluation fixture is appended to this user guide. 2.1 PCM290xCEVM-U PCB Figure 3.
Schematic and PCB www.ti.com Figure 4.
Schematic and PCB www.ti.com Figure 5.
TI RA3 1.5Kohms C001 0.1uF 27Kohms 13Kohms R006 R007 D EM - PC M2 9 0 0C / 2 9 0 2 C / 2 9 0 6 C 12Kohms C105 330pF C101 R101 + 12Kohms 10uF R103 3.9Kohms R107 100ohms C103 0.0018uF C117 1uF R102 12Kohms R104 330pF 3.9Kohms U002 27 2 28 1 Right 2 Left 3 Case CN101 1 C107 + 10uF R108 100ohms C104 R001 1.5Kohms R002 10uF C002 R106 12Kohms C106 C102 10uF R004 0ohms 22ohms R003 0.0018uF C118 10uF 22ohms RA1 RA2 1.5Kohms 1.
Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
FCC Interference Statement for Class B EVM devices 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. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
【Important Notice for Users of this Product in Japan】 】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.
EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use.
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
