Related Manuals for Texas Instruments TLV320AIC23
Summary of Contents for Texas Instruments TLV320AIC23
- Page 1 TLV320AIC23 EVM2 Evaluation Platform for the TLV320AIC23 Stereo Audio CODEC and TLV320DAC23 Stereo DAC User’s Guide February 2002 DAV Digital Audio/Speaker SLEU016...
-
Page 2: Important Notice
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. -
Page 3: 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. As such, the goods being provided may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods. - Page 4 EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Copyright 2002, Texas Instruments Incorporated Mailing Address: Texas Instruments Post Office Box 655303...
- Page 5 About This Manual This user’s guide describes the setup and operation of the TLV320AIC23 EVM2 evaluation platform, and installation and operation of the DASCCT_AIC23 software that drives the EVM. How to Use This Manual This document contains the following chapters: Chapter 1 –...
- Page 6 Trademarks J of part 15 of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments may cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may be required to correct this interference.
-
Page 7: Table Of Contents
............TLV320AIC23 EVM2 Power Analog Connections 3.4.1... - Page 8 ............. Circuit Card and Schematic Figures 3–1 TLV320AIC23 EVM2 Parts Location Diagram 3–2 TLV320AIC23 EVM2 Top View 3–3 TLV320AIC23 EVM2 Bottom View 3–4...
-
Page 9: Introduction
Chapter 1 Introduction The TLV320AIC23 EVM2 is designed to demonstrate the TLV320AIC23 codec or TLV320DAC23 DAC. With the use of the DAREF106R2 parallel port interface board, the user can control the EVM with a PC. The supplied software allows the user to change items such as volume, sample rate, power-down modes, and audio format on the fly. -
Page 11: Quick Start-Up
This section explains to the user how to set up the TLV320AIC23 EVM2 quickly and hear audio using digital loopback. 1) Set the jumpers for the appropriate conditions as explained in Section 3.2 2) Power up the AIC23 (PJ1) per Section 3.3 3) Connect audio source (e.g., CD player) LINEIN (J1). -
Page 13: Theory Of Operation
Theory of Operation This section provides a comprehensive description and explanation of the various features of the TLV320AIC23 EVM2. Topic Photographs of EVM ......... . -
Page 14: Tlv320Aic23 Evm2 Parts Location Diagram
Figure 3–1. TLV320AIC23 EVM2 Parts Location Diagram Right Out Left Out Line Out Left In Headphone Line In Right In Parallel Port Connector Power Master CLKIN Digital I/O Master CLKOUT... -
Page 15: Photographs Of Evm
Photographs of EVM 3.1 Photographs of EVM Figure 3–2. TLV320AIC23 EVM2 Top View Theory of Operation... -
Page 16: Tlv320Aic23 Evm2 Bottom View
Photographs of EVM Figure 3–3. TLV320AIC23 EVM2 Bottom View... -
Page 17: Parallel Port Interface Board Top View
Photographs of EVM Figure 3–4. Parallel Port Interface Board Top View Figure 3–5. Parallel Port Interface Board Bottom View Theory of Operation... -
Page 18: Jumper Settings
Master clock from onboard crystal Master clock supplied externally 3.3 TLV320AIC23 EVM2 Power The TLV320AIC23 EVM2 is powered by an external 5-Vdc power supply (not included) to a 2,5-mm mini power jack, PJ1. LED1 indicates when power is applied to the board. -
Page 19: Software Interface Connection
3.6.3 Software Interface Connection A PC provides control of the TLV320AIC23 EVM2 via a software GUI called Rhino. A parallel port interface board, DAREF106, connects to the PC parallel port. A cable with miniDIN 8-pin connectors, included in the TLV320AIC23 EVM2 kit, connects the parallel port interface board to the EVM. -
Page 21: Software
This section describes the use of the DASCCT_AIC23 software GUI interface to control the TLV320AIC23 EVM2 board. Pictures of the various interface panels are shown, and explanations of the control and display elements on each are provided. Topic DASCCT_AIC23 Installation . -
Page 22: Dascct_Aic23 Installation
4) Connect the analog input from a CD, DVD player, or any alternative analog source to the TLV320AIC23/DAC23 EVM2. 5) Connect the TLV320AIC23/DAC23 EVM2 to the speakers or headphones that will be used for listening. 6) Connect the parallel port interface card to the parallel port connector of the... -
Page 23: Aic23/Dac23 Evm2 Connection Diagram
DASCCT_AIC23 Installation Figure 4–1. AIC23/DAC23 EVM2 Connection Diagram Audio Out Speakers Analog In C Connector AIC23/DAC23 EVM Parallel Port Parallel Port Interface Board CD Player Software... -
Page 24: Dascct_Aic23 Start-Up
4.4.2 AIC 23 and DAC 23 Radio Buttons These radio button allow selection of the device to be emulated by the TLV320AIC23 EVM2, the codec or the DAC. 4.4.3 Master and Slave Radio Buttons These radio buttons select the operating mode of the device. -
Page 25: Message Area
4.4.4 Message Area Directly below the Master and Slave radio buttons on the left side of the main panel is a message area. Short text instructions to the operator, status indications, or error messages can appear in this box. A listing of possible error messages appears in Chapter 5, along with an explanation of the errors. -
Page 26: I2C Adjust Button
4.4.12 View Registers Button When the View Registers button is clicked, the GUI opens a second panel. This panel shows all the TLV320AIC23/DAC23 EVM2 registers. A function name is displayed for each bit in each register, and the values of the bits can be viewed or changed. -
Page 27: Clock Select Button
4.4.18 Clock Select Button Clicking the Clock Select button opens a panel that allows selection of master clock speed and ADC and DAC sampling rates (see Section 4.6.11). (Do clock selections correspond to sampling rate register bits?) 4.4.19 Frequency Display Areas In the lower right corner of the main panel are two frequency displays. -
Page 28: View Registers
I2C Adjust 4.6 View Registers The registers panel, shown in Figure 4–4, displays the bits for 10 registers, where the user can either view or change the bit values. There is a Preset Modes section of the panel, which allows the user to call up any of three sets of default register settings. -
Page 29: Mode Files
I2C Adjust Figure 4–5. Mode Files Software... -
Page 30: L Vol (Line Input) Register
L Vol (HeadPhone) Register 4.6.2 L Vol (Line Input) Register Address: 0000000 D4–D0 set the left line input volume. D8 sets simultaneous right/left volume/mute. D7 sets the left input mute. Setting the bit values in this register is functionally equivalent to operating the Line Input Volume Left controls on the main panel (see Section 4.4.5). -
Page 31: Audio (Digital) Register
D7–D6 set the sidetone attenuation (00 = –6 dB, 01 = –9 dB, 10 = –12 dB, 11 = –15 dB). D5 sets sidetone enable (0 = disabled, 1 = enabled). D4 sets the DAC select (0 = DAC off, 1 = DAC selected). D3 sets the bypass (0 = disabled, 1 = enabled). -
Page 32: Power Down Register
Power Down Register The Apply button sends the current bit values shown on the Analog Control panel to the Audio (Digital) register section of the register panel. The OK button performs the same function as the Apply button and simultaneously closes the register panel. -
Page 33: Sampling Rate Register
The Apply button sends the current bit values shown on the Analog Control panel to the Audio (Format) register section of the register panel. The OK button performs the same function as the Apply button and simultaneously closes the register panel. Figure 4–8. -
Page 34: Interface Activate Register
Interface Activate Register Figure 4–9. Clock Setup 4.6.12 Interface Activate Register Address: 0001001 D0 activates the digital interface (0 = inactive, 1 = active). Clicking the Send Data button sends only the interface activation data without clicking the Apply button. 4-14... -
Page 35: C Error Messages
The error messages are only visible during error conditions. The error messages are located just above the RESET button in the main panel. The first message to appear will be above the second message. For example, if an ACK error occurs first then it is displayed first and it is only displayed once. The software continues to send data to the device even with ACK and WAIT errors. -
Page 37: Kit Contents
This chapter contains a list of the contents of the TLV320AIC23 EVM2 kit and a bill of materials for the TLV320AIC23 EVM2 board. Topic TLV320AIC23 EVM2 Kit Contents Bill of Materials .......... -
Page 38: Tlv320Aic23 Evm2 Kit Contents
6.1 TLV320AIC23 EVM2 Kit Contents TLV320AIC23 EVM2 is shipped with the following: 1) TLV320AIC23 EVM2 evaluation module 2) DAREF106R2 parallel port interface board 3) TLV320AIC23 EVM2 CD. The CD contains the following: a) TLV320AIC23 data manual b) TLV320AIC23 EVM2 user’s guide c) Schematic... -
Page 39: Bill Of Materials
MUX, Single 2to1 W/Common Strobe Rectifier, Silicon 1A 400V Rectifier, SW 0.15A 75V SMT MiniMELF RES 0.0 OHM 1/10W 5% SMD 0805 Qty. Part Number Mfr. SN74AHC1G08DBVR Texas Instruments SN74AHCT1G08DBVR Texas Instruments SN74LVC2G241DCTR Texas Instruments Panasonic ECU–V1H270JCV Panasonic ECJ–1VC1H470J Panasonic ECJ–1VB1C104K... - Page 40 ERJ–6GEYJ222V Panasonic ERJ–3EKF4991V Panasonic ERJ–3EKF1003V Panasonic ERJ–3EKF1693V Panasonic ERJ–3EKF3013V TPS76301DBVR Texas Instruments Ref. Des. R11, R12, R13, R14, R15, R16, R19, R27, R29 R1, R2, R4, R5, R30, R32 R3, R6, R9, R10, R22 R24, R25 R21, R23 VR1, VR2...
-
Page 41: Circuit Card And Schematic
Appendix A Appendix A Circuit Card and Schematic This appendix contains the following items for the TLV320AIC23 EVM2, in the order listed: 1) Top silkscreen 2) Copper layer 1 3) Copper layer 2 4) Schematic diagram... - Page 42 Thu Nov 29 10:48:53 2001...
- Page 43 Thu Nov 29 10:46:27 2001...
- Page 44 Thu Nov 29 10:47:13 2001...
Need help?
Do you have a question about the TLV320AIC23 and is the answer not in the manual?
Questions and answers