Texas Instruments TLV320AIC23 User Manual Download

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TLV320AIC23 EVM2

Evaluation Platform for the TLV320AIC23 Stereo

Audio CODEC and TLV320DAC23 Stereo DAC

February 2002

DAV Digital Audio/Speaker

User’s Guide

SLEU016

Summary of Contents for TLV320AIC23

Page 1: ...TLV320AIC23 EVM2 Evaluation Platform for the TLV320AIC23 Stereo Audio CODEC and TLV320DAC23 Stereo DAC February 2002 DAV Digital Audio Speaker User s Guide SLEU016...

Page 2: ...t that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in wh...

Page 3: ...handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s r...

Page 4: ...If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 50 C The EVM is de...

Page 5: ...4 Software Chapter 5 I2C Error Messages Chapter 6 Kit Contents Appendix A Circuit Card and Schematic Related Documentation From Texas Instruments TLV320DAC23 Stereo Audio D A Converter 8 to 96 kHz Wi...

Page 6: ...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 t...

Page 7: ...ware Interface Connection 3 7 4 Software 4 1 4 1 DASCCT_AIC23 Installation 4 2 4 2 DASCCT_AIC23 Start Up 4 4 4 3 DASCCT_AIC23 Overview 4 4 4 4 Main Panel 4 4 4 4 1 About Button 4 4 4 4 2 AIC 23 and DA...

Page 8: ...ister 4 12 4 6 10 Audio Format Register 4 12 4 6 11 Sampling Rate Register 4 13 4 6 12 Interface Activate Register 4 14 5 I2C Error Messages 5 1 6 Kit Contents 6 1 6 1 TLV320AIC23 EVM2 Kit Contents 6...

Page 9: ...the MASTER CLOCK frequency For inputs a MIC jack and a LINEIN jack stereo and LEFT RIGHT are available on the EVM For outputs HEADPHONE and LINEOUT stereo and LEFT RIGHT are available on the EVM Using...

Page 10: ...1 2...

Page 11: ...CD player LINEIN J1 4 Connect speaker or headphone to J4 5 Connect the parallel port interface board to the PC parallel port and via the supplied cable the miniDIN 8 pin jack J5 6 Run DASCCT_AIC23 fr...

Page 12: ...2 2...

Page 13: ...prehensive description and explanation of the various features of the TLV320AIC23 EVM2 Topic Page 3 1 Photographs of EVM 3 3 3 2 Jumper Settings 3 6 3 3 TLV320AIC23 EVM2 Power 3 6 3 4 Analog Connectio...

Page 14: ...20AIC23 EVM2 Parts Location Diagram Headphone Left In J2 J2R J2L U1 Y1 J3 J1L J1 J1R J5 Master CLKIN J7 PJ1 J4 Left Out Right Out Line Out MIc Right In Line In Parallel Port Connector I2C Master CLKOU...

Page 15: ...Photographs of EVM 3 3 Theory of Operation 3 1 Photographs of EVM Figure 3 2 TLV320AIC23 EVM2 Top View...

Page 16: ...Photographs of EVM 3 4 Figure 3 3 TLV320AIC23 EVM2 Bottom View...

Page 17: ...Photographs of EVM 3 5 Theory of Operation Figure 3 4 Parallel Port Interface Board Top View Figure 3 5 Parallel Port Interface Board Bottom View...

Page 18: ...d externally IN OUT 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 th...

Page 19: ...l or internal For internal mode a crystal socket is available For external mode the master clock is applied to SMA jack J8 The master clock input is 5 V tolerant The master clock output is available a...

Page 20: ...3 8...

Page 21: ...AIC23 EVM2 board Pictures of the various interface panels are shown and explanations of the control and display elements on each are provided Topic Page 4 1 DASCCT_AIC23 Installation 4 2 4 2 DASCCT_AI...

Page 22: ...e CD ROM drive of the PC 2 Open the Start menu and then click Run 3 Type D SETUP and press ENTER If the CD ROM drive is not D substitute the appropriate drive letter Follow the instructions presented...

Page 23: ...ASCCT_AIC23 Installation 4 3 Software Figure 4 1 AIC23 DAC23 EVM2 Connection Diagram Speakers Analog In AIC23 DAC23 EVM I2C Connector Audio Out PC CD Player Parallel Port Parallel Port Interface Board...

Page 24: ...e center of the screen All other resolutions initialize at the same coordinates as designed in the 1152 by 864 screen resolution 4 4 Main Panel The GUI main panel is shown in Figure 4 2 The following...

Page 25: ...Input and R Vol Line Input registers on the register panel see Section 4 6 2 and Section 4 6 3 respectively 4 4 6 HeadPhone Volume The headphone volume section of the main panel consists of two ident...

Page 26: ...ty of the second panel is in Section 4 6 4 4 13 Dig Loopback Check Box Checking this box connects DOUT to DIN via a multiplexer 4 4 14 Digital Control Button Clicking the Digital Control button opens...

Page 27: ...mmands are generated on the parallel port using a method referred to as bit banging Because Windows does not have readily accessible timers down into the microseconds the I2C clocks are done using C f...

Page 28: ...ontains a READ radio button that is currently inactive Functionality will be assigned to the button in a future software release There are also three buttons labelled Mode One Mode Two and Mode Three...

Page 29: ...I2C Adjust 4 9 Software Figure 4 5 Mode Files...

Page 30: ...t D8 sets simultaneous right left volume mute Setting the bit values in this register is functionally equivalent to operating the HeadPhone Volume Left controls on the main panel see Section 4 4 6 4 6...

Page 31: ...the current state of the EVM registers The Apply button sends the current bit values shown on the Analog Control panel to the Audio Analog register section of the register panel The OK button performs...

Page 32: ...left right swap 0 disabled 1 enabled D4 sets the DAC left right phase 0 right channel on LRCIN high 1 LRCIN low In DSP mode 0 MSB is available on the first BCLK rising edge after an LRCIN rising edge...

Page 33: ...ed and ADC and DAC sampling rates There are also two check boxes for setting the clock input divider and clock output divider on or off Because the correspondence between clock settings and register b...

Page 34: ...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...

Page 35: ...ch the EVM Pin 15 on the parallel cable is not allowing the ACK command to return back to the host The LPT port is not connected and configured for EPP or bidirectional mode PS 2 in some cases The act...

Page 36: ...5 2...

Page 37: ...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 Page 6 1 TLV320AIC23 EVM2 Kit Contents 6 2 6 2 Bill of Ma...

Page 38: ...th 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...

Page 39: ...C16 C17 C18 C19 CAP 100UFD 10V RAD ALUM ELEC HFQ 3 ECA 1AFQ101 Panasonic C9 C10 C24 Codec 16 Bit Stereo Audio 1 TLV320AIC23PW Texas Instruments U1 Connector 20 Pin Box Header 1 2520 6002UB 3M J7 Ferri...

Page 40: ...S 49 9 OHM 1 8W 1 SMD 1206 1 ERJ 8ENF49R9V Panasonic R33 RES 499 OHM 1 16W 1 SMD 0603 1 ERJ 3EKF4990V Panasonic R26 RES 2 2K OHM 1 10W 5 SMD 0805 1 ERJ 6GEYJ222V Panasonic R8 RES 4 99K OHM 1 16W 1 SMD...

Page 41: ...ndix 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 Appendi...

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