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This document provides the information needed to set up and operate the
PCM4201EVM evaluation module (EVM). For a more detailed description of the
PCM4201, please refer to the product datasheet available from the Texas Instruments
web site at www.ti.com. Additional support documents are listed in the section of this
guide entitled Related Documentation from Texas Instruments and Additional
Documentation. Throughout this document, the acronym EVM and the phrase
evaluation module are synonymous with the PCM4201EVM. This user's guide
includes setup and configuration instructions, information regarding absolute operating
conditions, an electrical schematic, PCB layout drawings, and a bill of materials (BOM)
for the EVM.
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SBAU108A - January 2005 - Revised February 2005
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SBAU108A - January 2005 - Revised February 2005
PCM4201EVM User's Guide
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PCM4201EVM User's Guide
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Table of Contents
Related Manuals for Texas Instruments PCM4201EVM
Summary of Contents for Texas Instruments PCM4201EVM
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Page 1: Table Of Contents
PCM4201EVM User's Guide This document provides the information needed to set up and operate the PCM4201EVM evaluation module (EVM). For a more detailed description of the PCM4201, please refer to the product datasheet available from the Texas Instruments web site at www.ti.com. Additional support documents are listed in the section of this guide entitled Related Documentation from Texas Instruments and Additional Documentation. -
Page 2: Introduction
DGND Figure 1. PCM4201 Functional Block Diagram PCM4201EVM Features The PCM4201EVM provides a convenient platform for evaluating the performance and functions of the PCM4201 device. The primary EVM features include: • Simple configuration using an onboard DIP switch • Differential voltage input supporting 3-pin XLR or balanced TRS connections •... -
Page 3: Pcm4201Evm Functional Block Diagram
• Buffered audio serial port output supports connection to external DSP hardware or audio test equipment • An onboard Texas Instruments DIT4096 provides an AES3-encoded digital output suitable for use with audio test systems or commercial audio equipment, supporting output sampling rates up to 108kHz •... - Page 4 TRS input plug. The analog input is buffered and filtered using a low noise input circuit, utilizing a Texas Instruments' OPA2134 dual audio op amp IC. The output of the buffer circuit is connected to the differential input of the PCM4201, which is then used to convert the analog signal to a 24-bit linear PCM representation in the digital domain.
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Page 5: Getting Started
Failure to observe proper ESD handling precautions may result in damage to EVM components. Many of the components used in the assembly of the PCM4201EVM are susceptible to damage by electrostatic discharge (ESD). Customers are advised to observe proper ESD handling procedure when unpacking and handling the PCM4201EVM. -
Page 6: Hardware Description And Configuration
+2.0V. Analog Input The PCM4201EVM includes a Neutrik combo XLR connector (J1), which accepts either a 3-pin male XLR or a 1/4-inch TRS phono plug. The analog input can accept up to a 18.5V differential input signal. This signal is then attenuated by a factor of 3.7 by the input buffer circuit, which corresponds to the 5.0V... -
Page 7: System Clock Source Selection
HPFD switch settings. There may be a small increase distortion for low frequency inputs (less than 100Hz) when the high-pass filter is enabled. Table 4. Digital High-Pass Filter Configuration HPFD HIGH-PASS FILTER FUNCTION Enabled Disabled SBAU108A – January 2005 – Revised February 2005 PCM4201EVM User's Guide... -
Page 8: Slave/Master Mode Configuration
(SCKI) is also available at the audio serial port. The audio serial port may be operated in Slave or Master Mode. In Slave Mode, the BCK, FSYNC, and SCKI clocks are inputs to the PCM4201EVM, and may be provided from an external source (DSP, FPGA, etc.) via header J3. The BCK and FSYNC clocks must be synchronous with one another and the audio data. -
Page 9: Transmitter Reset Circuitry
512f Reset Operations The PCM4201EVM includes two reset switches, SW2 and SW3. Both are momentary contact, normally open pushbutton switches. Switch SW2 provides the manual reset for the PCM4201, while switch SW3 provides the manual reset the DIT4096 digital interface transmitter. -
Page 10: Schematic, Pcb Layout, And Bill Of Materials
Schematic, PCB Layout, and Bill of Materials Schematic, PCB Layout, and Bill of Materials This section provides the electrical schematic and physical layout information for the PCM4201EVM. The bill of materials (BOM) is included as a component reference. Note: Board layouts are not to scale. -
Page 11: Pcm4201Evm Schematic
Schematic, PCB Layout, and Bill of Materials Schematic The electrical schematic for the PCM4201EVM is shown in Figure 4. The components shown in the schematic are listed in Table 10 for reference. Figure 4. PCM4201EVM Schematic SBAU108A – January 2005 – Revised February 2005... -
Page 12: Top Side Silkscreen
Figure 5 through Figure 10 show the top and bottom side silkscreen images, along with top, ground plane, power, and bottom layers of the PCB. Figure 5. Top Side Silkscreen PCM4201EVM User's Guide SBAU108A – January 2005 – Revised February 2005... -
Page 13: Bottom Side Silkscreen
Schematic, PCB Layout, and Bill of Materials Figure 6. Bottom Side Silkscreen SBAU108A – January 2005 – Revised February 2005 PCM4201EVM User's Guide... -
Page 14: Top Layer (Component Side)
Schematic, PCB Layout, and Bill of Materials Figure 7. Top Layer (Component Side) PCM4201EVM User's Guide SBAU108A – January 2005 – Revised February 2005... -
Page 15: Ground Layer
Schematic, PCB Layout, and Bill of Materials Figure 8. Ground Layer SBAU108A – January 2005 – Revised February 2005 PCM4201EVM User's Guide... -
Page 16: Power Plane Layer
Schematic, PCB Layout, and Bill of Materials Figure 9. Power Plane Layer PCM4201EVM User's Guide SBAU108A – January 2005 – Revised February 2005... -
Page 17: Bottom Layer (Solder Side)
Schematic, PCB Layout, and Bill of Materials Figure 10. Bottom Layer (Solder Side) SBAU108A – January 2005 – Revised February 2005 PCM4201EVM User's Guide... -
Page 18: Pcm4201Evm Bill Of Materials
Schematic, PCB Layout, and Bill of Materials Bill of Materials The Bill of Materials, listing the components use in the assembly of the PCM4201EVM, is shown in Table 10. Table 10. PCM4201EVM Bill of Materials QTY PER ITEM VALUE... - Page 19 Schematic, PCB Layout, and Bill of Materials Table 10. PCM4201EVM Bill of Materials (continued) Texas OPA2134UA Dual Audio Op Amp Instruments Component Removed, Reference Maintained U4, U6 Texas SN74ALVC245PW Octal Bus Transceiver w/ Tri-State Instruments Outputs Texas SN74LVC1G125DBV Single Non-Inverting Buffer w/...
- Page 20 EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use.
- Page 21 TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products...
- Page 22 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments PCM4201EVM...
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