Texas Instruments DEM-DAI3793A - Manuals

Page 4 - Important Notices

A.2 Interfacing to DSPs ............................................................................................... 98 A.2.1 Register Control with DSP Interface ................................................................... 99 A.3 Package Information ...........................................

Page 9 - Preface; About This Manual; . Support documents are listed in the; How to Use This Manual; configure the EVM switches and jumpers for product evaluation.; Information About Cautions and Warnings; This document contains caution statements.; CAUTION

Preface SBAU127 – July 2007 Read This First About This Manual This document provides the information needed to set up and operate the DEM-DAI3793A/3794A EVMevaluation module, a test platform for the 16-bit, low-power PCM3793A / PCM3794A stereo audio codecs. For a more detailed description of the PCM...

Page 10 - Related Documentation From Texas Instruments; TI web site; Additional Documentation; If You Need Assistance; All trademarks are the property of their respective owners.

www.ti.com Related Documentation From Texas Instruments Related Documentation From Texas Instruments The following documents provide information regarding Texas Instruments integrated circuits used in theassembly of the DEM-DAI3793A/3794A EVM. These documents are available from the TI web site . The...

Page 11 - Chapter 1; Topic; Pin Assignments and Terminal Functions

Chapter 1 SBAU127 – July 2007 Description The DEM-DAI3793A/3794A EVM is a complete evaluation platform for the PCM3793A / PCM3794A 16-bit, low-power stereo audio codec with microphone bias, headphone, and digital speaker. All necessaryconnectors and circuitry are provided for interfacing to audio te...

Page 13 - blank

www.ti.com Introduction—PCM3793A/94A blank • Programmable Function by Register Control: – Digital attenuation of DAC: 0dB to –62dB – Digital gain of DAC: 0dB, 6dB, 12dB, 18dB – Power up/down control for each module – 6dB to –70dB gain for analog outputs – 30dB to –12dB gain for analog inputs – 0dB/2...

Page 14 - and; TERMINAL

www.ti.com 1.2 Pin Assignments and Terminal Functions HPOR/LOR AIN2L BCK AIN2R 24 1 23 2 22 3 21 4 20 5 19 6 18 7 17 8 16 25 15 26 14 27 13 28 12 29 11 30 10 31 9 32 SPOLP AIN3L SPOLN AIN3R PGND MICB V PA V C C SPORP AGND SPORN V C O M HPCOM/MONO HPOL/L OL PCM3793ARHB (TOP VIEW) AIN1R DIN AIN1L DOUT...

Page 17 - Chapter 2; Electrostatic Discharge Warning

Chapter 2 SBAU127 – July 2007 Getting Started This chapter provides information regarding DEM-DAI3793A/3794A EVM handling and unpacking,absolute operating conditions, and a description of the factory default switch and jumper configuration. Topic ........................................................

Page 18 - Motherboard

www.ti.com 2.1 Electrostatic Discharge Warning 2.2 Unpacking the EVM Electrostatic Discharge Warning Many of the components on the DEM-DAI3793A/3794A EVM are susceptible to damage by electrostaticdischarge (ESD). Customers are advised to observe proper ESD handling precautions when unpackingand hand...

Page 19 - Default Configuration

www.ti.com 2.3 Default Configuration Default Configuration Figure 2-1 and Figure 2-2 illustrate the default EVM configuration and the default external equipment connection configuration, respectively. Figure 2-1. EVM Configuration SBAU127 – July 2007 Getting Started 19 Submit Documentation Feedback

Page 20 - Figure 2-2. EVM and External Equipment Connections; SW301: Set Opt or Coax output for the proper cable connection

www.ti.com Default Configuration Figure 2-2. EVM and External Equipment Connections The factory default configuration for the DEM-DAI3793A/3794A EVM is listed below. Motherboard: • CN101, CN102: Connect dc power supply positive lead (+) to CN101 and negative lead (–) to CN102 • SW301: Set Opt or Coa...

Page 21 - Chapter 3; Basic Operating Set-Up

Chapter 3 SBAU127 – July 2007 Set-Up Guide This chapter discusses how to set up the DEM-DAI3793A/3794A EVM and describes the EVM software. Topic .................................................................................................. Page 3.1 Basic Operating Set-Up ...........................

Page 22 - When using the kit for the first time, install the

www.ti.com 3.1 Basic Operating Set-Up 3.2 Software Control and Operation 3.2.1 User Interface Panel Basic Operating Set-Up Follow these steps to set up the DEM-DAI3793A/3794A EVM for operation. Step 1. When using the kit for the first time, install the TUSB3410 VCP (Virtual COM Port) driver to the h...

Page 23 - Software Control and Operation

www.ti.com 3.2.2 Power On/Off Sequence 3.2.3 Module Function Controls Software Control and Operation Check to see that a Ready notation appears in the lower left-hand corner after successful I 2 C communication is established. Otherwise, you will see an error box showing a communication error (assho...

Page 24 - ) allows users to manually power up or power down each module. Click

www.ti.com 3.2.3.1 Power Up/Down Software Control and Operation This menu (shown in Figure 3-4 ) allows users to manually power up or power down each module. Click the appropriate checkboxes to power up or power down a specific module. Table 3-1 shows the register mapping for each module setting. Ab...

Page 25 - product data sheet; Register Direct Access

www.ti.com Power Up/Down Time (ms) Options Power Up/Down Time (ms) Options It is possible to select the V COM ramp up/down time from GND level to a common voltage level or vice-versa by choosing a V COM capacitor value and time by choosing one of the available checkboxes. A 4.7 μ F V COM capacitor i...

Page 26 - shows the Record function tab options.

www.ti.com 3.2.3.2 Record Power Up/Down Time (ms) Options Figure 3-5. Ramp Up Wave Form with Default Figure 3-6. Ramp Down Wave Form with Setting Default Setting Figure 3-7 shows the Record function tab options. Figure 3-7. Record Function Menu Tab 26 Set-Up Guide SBAU127 – July 2007 Submit Document...

Page 27 - Gain Control for ADC Input Options; Figure 3-8. EVM Modules Corresponding to Record Function; Gain Control for ADC Input Options; Mute waiting control enables a mute control.; Digital Out Mute Control Options; Apply wait or no wait for the ADC mute.

www.ti.com V COM AIN3LAIN2LAIN1L AIN2RAIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE Serial Interface (SPI/I C) 2 SCKI Audio Interface V PA PGND V CC AGND V DD DGND HPOL/LOL HPOR/LOR SPOLPSPOLN SPORPSPORN HDTI MUX1 DAL ADL DAR HPCOM/MONO COM HPR HPL HPC LOUT ROUT +30dB to 12d...

Page 28 - Playback; The Playback function is shown in

www.ti.com 3.2.3.3 Playback Digital Out Mute Control Options The Playback function is shown in Figure 3-9 . Figure 3-9. Playback Function Menu Tab 28 Set-Up Guide SBAU127 – July 2007 Submit Documentation Feedback

Page 29 - Figure 3-10. Modules Corresponding to Playback Function; Headphone Gain Control Options

www.ti.com V COM AIN3LAIN2LAIN1L AIN2RAIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE Serial Interface (SPI/I C) 2 SCKI Audio Interface V PA PGND V CC AGND V DD DGND HPOL/LOL HPOR/LOR SPOLPSPOLN SPORPSPORN HDTI MUX1 DAL ADL DAR HPCOM/MONO COM HPR HPL HPC LOUT ROUT +30dB to 12d...

Page 30 - The L-ch slider adjusts the DAC digital attenuator level; Figure 3-12. ALC Compression and Expansion Characteristics

www.ti.com 3.2.3.4 ALC (Automatic Level Control) OutputAmplitude Input Amplitude Compression( 2dB, 6dB, 12dB) - - - Expansion(0dB, +6dB, +14dB, +24dB) 0dB 0dB Digital Attenuation (ATP) Options Digital Attenuation (ATP) Options Move the L-ch and R-ch sliders to adjust the gain of the incoming digital...

Page 31 - Signal Processing I; illustrates the Signal Processing 1 function menu tab.; Figure 3-13. Signal Processing 1 Function Menu Tab; Source Options

www.ti.com 3.2.3.5 Signal Processing I 15 10 5 0 5 10 15 - - - Amplitude(dB) 10 100 1k 10k 100k Frequency (Hz) Source Options Figure 3-13 illustrates the Signal Processing 1 function menu tab. Figure 3-13. Signal Processing 1 Function Menu Tab Source Options Select the Source input to choose either ...

Page 32 - D Effect Options; represents the angular center frequency

www.ti.com 3D Effect Options 3D Effect Options By implementing a 3D effect in this option box, the PCM3793A is enabled to provide 3D sound to theheadphone and speaker outputs with low power consumption during either ADC or DAC operation. Checkthe 3D effect, then select an Effect type and an Efficien...

Page 33 - Notch Filter 1 Coefficient, Notch Filter 2 Coefficient Options; Figure 3-15. Notch Filter Characteristic Model

www.ti.com Amplitude(dB) Frequency (Hz) 0dB - 3dB f : Center Frequency c f : Bandwidth Frequency b Notch Filter 1 Coefficient, Notch Filter 2 Coefficient Options Figure 3-15 illustrates the notch filter characteristic. All users can select any frequencies that can be used by the application system b...

Page 34 - Signal Processing 2; The Signal Processing 2 Function menu tab is shown in; Figure 3-17. Signal Processing 2 Function Menu Tab; DAC Oversampling Control Options; The DAC oversampling rate range (for 192f; Zero Cross Control Options; ) of the incoming analog signal

www.ti.com 3.2.3.6 Signal Processing 2 DAC Oversampling Control Options The Signal Processing 2 Function menu tab is shown in Figure 3-17 . Figure 3-17. Signal Processing 2 Function Menu Tab DAC Oversampling Control Options Select the DAC oversampling control menu to determine the DAC oversampling r...

Page 35 - Analog Path; High-Pass Filter Options; shows the Analog Path Function menu.; Figure 3-18. Analog Path Function Menu Tab

www.ti.com 3.2.3.7 Analog Path High-Pass Filter Options Figure 3-18 shows the Analog Path Function menu. Figure 3-18. Analog Path Function Menu Tab SBAU127 – July 2007 Set-Up Guide 35 Submit Documentation Feedback

Page 36 - Figure 3-19. Modules Corresponding to Analog Path Function; Analog Input Options

www.ti.com V COM AIN3LAIN2LAIN1L AIN2RAIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE Serial Interface (SPI/I C) 2 SCKI Audio Interface V PA PGND V CC AGND V DD DGND HPOL/LOL HPOR/LOR SPOLPSPOLN SPORPSPORN HDTI MUX1 DAL ADL DAR HPCOM/MONO COM HPR HPL HPC LOUT ROUT +30dB to 12d...

Page 37 - Audio Interface; PG5 Gain and PG6 Gain Options; shows the Audio Interface Function menu.; Figure 3-20. Audio Interface Function Menu Tab; Audio Interface Setting 1 Options; Use this section of the menu when working in Master mode.; MSR: sets system clock rate; for the possible combinations of these register settings.

www.ti.com 3.2.3.8 Audio Interface PG5 Gain and PG6 Gain Options PG5 Gain and PG6 Gain Options PG5 gain (for the left channel) or PG6 (for the right channel) can be adjusted from the availabledrop-down menu. Figure 3-20 shows the Audio Interface Function menu. Figure 3-20. Audio Interface Function M...

Page 38 - Status Detect; The Status Detect function is shown in; Figure 3-21. Status Detect Function Menu Tab; HP Detection Options

www.ti.com 3.2.3.9 Status Detect HP Detection Options The Status Detect function is shown in Figure 3-21 . Figure 3-21. Status Detect Function Menu Tab HP Detection Options Use this section of the menu to enable or disable the HP insertion detection process. You can also theHDTI pin logical polarity...

Page 39 - Audio Clock/Data Control Options; shows the Digital Amplifier function.; Figure 3-22. Digital Amplifier Function Menu Tab; illustrates the LC89052 Interface format choices.; Figure 3-23. LC89052 Interface Format Selection Options; PLL SCK: Selects the system clock rate for the PCM3793A.

www.ti.com 3.2.3.10 Digital Amplifier 3.2.4 LC89052T (DIR: Digital Audio I/F Receiver) Control Window 3.2.4.1 Audio Clock/Data Control Options Speaker Short Detection, L-Ch; Speaker Short Detection, R-Ch Figure 3-22 shows the Digital Amplifier function. Figure 3-22. Digital Amplifier Function Menu T...

Page 40 - shows the Register Setting History display window.; Figure 3-24. Register Setting History Window

www.ti.com 3.2.5 Register Setting History Speaker Short Detection, L-Ch; Speaker Short Detection, R-Ch When any checkboxes are selected on any tab of the software GUI (including power up/down operation,corresponding resistor address, and so forth), the register value is automatically written into th...

Page 41 - Modifying a .csv File; use the left row for resistor addresses and the

www.ti.com 3.2.5.1 Modifying a .csv File Speaker Short Detection, L-Ch; Speaker Short Detection, R-Ch The .csv file stores a sequence of register settings for the PCM3793A. To load a given register setting, itshould be written in hex code, as shown in Figure 3-25 ; use the left row for resistor addr...

Page 42 - Figure 3-26. Register Direct Access Dialog

www.ti.com 3.2.6 Register Direct Access Speaker Short Detection, L-Ch; Speaker Short Detection, R-Ch Figure 3-26 illustrates the register direct access dialog. Read function: The Read function is only available in I 2 C mode. The register value can be read in I 2 C mode. To read the value, enter the...

Page 43 - Chapter 4; Overview

Chapter 4 SBAU127 – July 2007 Switches and Connectors This chapter reviews the DEM-DAI3793A/3794A EVM switch and jumper configuration. Topic .................................................................................................. Page 4.1 Overview .............................................

Page 44 - shows the location of the switches and connectors on the EVM board.; Table 4-1. Main Power Supply and Regulator

www.ti.com 4.1 Overview 4.2 Motherboard Overview Figure 4-1 shows the location of the switches and connectors on the EVM board. Note: Silkscreen symbol CN320 is not printed on the motherboard, but it is located in the position described. Figure 4-1. EVM Configuration Table 4-1 through Table 4-4 list...

Page 48 - Table 4-7. Audio Clock and Input Data Control; Input Data Format

www.ti.com 4.4 Daughter Card #2 (DIR: LC89052T and DIT: DIT4096) Daughter Card #2 (DIR: LC89052T and DIT: DIT4096) Table 4-6 lists the connector references for the second DEM-DAI3793A/3794A EVM daughter card. Table 4-6. Analog Input and Output—Daughter Card #2 Connectors Analog Input and Output of D...

Page 49 - Chapter 5; Master Mode with Audio Precision SYS-2722

Chapter 5 SBAU127 – July 2007 Evaluation and Measurements This chapter discusses how to set up jumpers on the DEM-DAI3793A/3794A EVM motherboard forperformance evaluation using the Audio Precision SYS-2722 ® or PSIA-2722 ® audio analyzers. The process of measuring dynamic characteristics is then pre...

Page 52 - ) and BCK in master mode, as described in

www.ti.com 5.2 Master Mode with Audio Precision SYS-2722 SCKI BCK LRCK DOUT DIN DAC DIR:LC89052T ADC PCM3793A Daughter card #2 Daughter card #1 DIT: DIT4096 U302 CN302 U301 CN301 SW301 SW001 Clock Manager AudioInterface Isolated by CN305 Master Mode with Audio Precision SYS-2722 To enable the DEM-DA...

Page 53 - Figure 5-4. Jumper Configuration for Master Mode

www.ti.com Short plug Short plug Short plug All open Short plug CN305 CN307 T-SCLK GND T-BCK T-SCK T-LRCK T-BCK TX-DATA T-LRCK E-SCLK TX-DATA R-SCLK R-SCLK R-BCK R-BCK R-LRCK R-LRCK RX-DATA RX-DATA E-SCK SCK T-SCLK BCK T-BCK from U003 (DIR: LC89052T) on Daughter Card #2 from U003 (DIR: LC89052T) on ...

Page 54 - Combined Master and Slave Modes With PSIA-2722; As shown in

www.ti.com 5.3 Combined Master and Slave Modes With PSIA-2722 SCKI BCK LRCK DOUT DIN DAC ADC PCM3793A Daughter card #1 Clock Manager AudioInterface PSIA-2722 Slave Master Master Slave Combined Master and Slave Modes With PSIA-2722 As shown in Figure 5-5 , the DEM-DAI3793A/3794A EVM can provide evalu...

Page 55 - Measurements for Dynamic Characteristics; Equipment used: Audio Precision, System Two Cascade Plus

www.ti.com Short plug Short plug Short plug Short plug All open CN305 CN307 T-SCLK GND T-BCK T-SCK T-LRCK T-BCK TX-DATA T-LRCK E-SCLK TX-DATA R-SCLK R-SCLK R-BCK R-BCK R-LRCK R-LRCK RX-DATA RX-DATA E-SCK SCK T-SCLK BCK T-BCK from U003 (DIR: LC89052T) on Daughter Card #2 from U003 (DIR: LC89052T) on ...

Page 56 - Headphone Output Inserted in Headphone Jack J6; Appendix A

www.ti.com 5.4.1 Digital-to-Analog (D/A) Performance Measurements for Dynamic Characteristics Measurement path: 01.Line Output and Headphone Outputcsv file: 01_DAC_Line_Output_and_Headphone_Output.csv Table 5-1. D/A Line Output Parameters Power Supply Parameter Filter Setting R L (k Ω ) LOL LOR 3.3V...

Page 57 - Table 5-4. Stereo Speaker Output Parameters

www.ti.com 5.4.2 Analog-to-Digital (A/D) Performance 5.4.3 Speaker Output Power Performance Measurements for Dynamic Characteristics Measurement path: 17.Line Input (AIN3L/AIN3R)csv file: 17_ADC_Line_Input.csv Table 5-3. A/D Line Input Parameters Power Supply Parameter Filter Setting Left Channel Ri...

Page 58 - Figure 5-7. Speaker Output Filter Configuration

www.ti.com 5.4.3.1 LC Low-Pass Filter Note (1): Same configuration at SPORN/SPORP SPOL SPOR J3 J4 Snubber Circuit LC LPF SPOLN SPOLP L1 22 H m L2 22 H m C11 2.2 F m C12 2.2 F m C9 0.82 F m C8 0.82 F m R6 330 W R5 330 W R8 L W Audio Analyzer Differential Input J3 TP2 TP1 + - f = C » 37.5 [kHz] 2 p ´ ...

Page 59 - Amplitude Versus Frequency Performance; See

www.ti.com 5.4.4 Amplitude Versus Frequency Performance 5.4.4.1 A/D Spectrum 0 20 40 60 80 100 120 140 - - - - - - - Amplitude(dB) AMPLITUDE vs FREQUENCY 0 5 10 15 20 Frequency (kHz) BPZ (Zero Data) Input 0 20 40 60 80 100 120 140 - - - - - - - Amplitude(dB) AMPLITUDE vs FREQUENCY 0 5 10 15 20 Frequ...

Page 61 - Connection Diagram for Practical Applications; are listed in

www.ti.com 5.5 Connection Diagram for Practical Applications C 7 StereoHeadphone R 2 C 1 C 2 C 3 C 4 C 5 C 6 Lo w o r H igh R 1 R 4 SCKI (7) BCK (1) LRCK (32) DIN (2) DOUT (3) MODE (28) MS/ADR (29) MD/SDA (30) MC/SCL (31) V COM (18) (11) SPORP (10) SPORN (8) HDTI (16) HPOR/LOR AIN1L (27) AIN1R (26) ...

Page 62 - Filter Consideration for Speaker Output; describes recommended; Figure 5-16. Recommended Ferrite Bead Filter for Speaker Output

www.ti.com 5.5.1 Filter Consideration for Speaker Output SPOLP/SPORP SPOLN/SPORN B 1 B 2 C 15 C 16 HDTI V CC + + HPOL HPOR PGND HPCOM HP Jack HDTI HPOL HPOR PGND HPCOM HP Jack Conventional Mode Capless Mode V CC Connection Diagram for Practical Applications For a practical application such as a port...

Page 63 - Chapter 6; Schematics

Chapter 6 SBAU127 – July 2007 Schematic, PCB Layout, and Bill of Materials This chapter provides the electrical and physical layout information for the DEM-DAI3793A/3794A EVM.The bill of materials is included for component and manufacturer reference. Topic ..............................................

Page 66 - Printed Circuit Board Layout; through

www.ti.com 6.2 Printed Circuit Board Layout Printed Circuit Board Layout Figure 6-3 through Figure 6-7 illustrate the printed circuit board (PCB) layout for the DEM-DAI3793A/3794A EVM. Note: Board layouts are not to scale. These figures are intended to show how the board is laidout; they are not int...

Page 71 - Component List

www.ti.com 6.3 Component List Component List Table 6-1 lists the Bill of Materials for the DEM-DAI3793A/3794A EVM. Table 6-1. Bill of Materials RefDes Count Description Part Number MFR R3, R5, R6, R7, 5 330 Ω CF1/4C-33 Ω J KOA R8 CP1—CP4 4 0.1 μ F GRM188F5E104ZA01D Murata 1 C8, C9, C13, C14 4 0.82 μ...

Page 73 - Information; Interfacing to DSPs

Appendix A SBAU127 – July 2007 Reference .csv Files, Interfacing to DSPs, and Package Information Topic .................................................................................................. Page A.1 Reference .csv Files .................................................................. ...

Page 74 - ) must be implemented after an All Active operation is; Playback with Digital Input

www.ti.com A.1 Reference .csv Files Reference .csv Files The .csv files are bundled with the DEM-DAI3793A/3794A EVM Controller. These files enable users toexecute register settings corresponding to the specific operating modes discussed in the product datasheet by importing them into the software. N...

Page 75 - Related Signal Flow Diagrams; Figure A-1. Line Output and Headphone Output

www.ti.com A Related Signal Flow Diagrams V COM AIN3LAIN2LAIN1L AIN2RAIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE Serial Interface (SPI/I C) 2 SCKI Audio Interface V PA PGND V CC AGND V DD DGND HPOL/LOL HPOR/LOR SPOLPSPOLN SPORPSPORN HDTI MUX1 DAL ADL DAR HPCOM/MONO COM HPR...

Page 76 - Figure A-2. Headphone Output with Sound Effect

www.ti.com V COM AIN3LAIN2LAIN1L AIN2RAIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE Serial Interface (SPI/I C) 2 SCKI Audio Interface V PA PGND V CC AGND V DD DGND HPOL/LOL HPOR/LOR SPOLPSPOLN SPORPSPORN HDTI MUX1 DAL ADL DAR HPCOM/MONO COM HPR HPL HPC LOUT ROUT +30dB to 12d...

Page 99 - A.2.1 Register Control with DSP Interface; Package Information; PCM3793A product data sheet

www.ti.com A.2.1 Register Control with DSP Interface A.3 Package Information Package Information Table A-2 summarizes the recommended power-on sequence for the PCM3793A. The shaded cells within the table indicate specific register settings that must be configured for the device to properly operate w...

Page 101 - IMPORTANT NOTICE; Products

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 l...