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Summary of Contents for Texas Instruments AIC111EVM
- Page 1 AIC111EVM User’s Guide June 2003 Data Acquisition Products SLAU108...
- Page 2 TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products & application solutions:...
- 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. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2003, Texas Instruments Incorporated...
- Page 5 Related Documentation From Texas Instruments Preface Read This First About This Manual This user’s guide describes the operation and use of the AIC111 codec. A complete circuit description as well as a schematic diagram and bill of materi- als are also included.
- Page 6 Trademarks The TI Logo is a trademark of Texas Instruments.
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Page 7: Table Of Contents
Contents Contents Introduction ..............Digital Interface . - Page 8 Contents (This page has been left blank intentionally.)
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Page 9: Introduction
Chapter 1 Introduction This user guide provides support for the AIC111 device. The AIC111 features a ∆Σ ADC & DAC, a programmable time-constant PGA/compressor interface, and a glueless interface to many DSPs. The device featured on the EVM is a 5x5 QFN (quad flatpack no leads) - Page 10 (This page has been left blank intentionally.)
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Page 11: Digital Interface
Chapter 2 Digital Interface The digital signals required to operate this codec originate from the 40-pin con- nector – J1. There are two methods to drive the digital interface: Create a custom interface between the codec EVM and the host system. Alternatively, if a TI DSK (DSP starter kit) is the host system, a develop- ment platform is available from TI. -
Page 12: Codec-To-Platform
Codec-to-Platform 2.1 Codec-to-Platform The AIC111 mates with the development platform via a 40-pin Samtec connector. The mating connector (Samtec part number, TSM-120-01-T-DV-P) is used on the development platform to provide the electrical connections necessary. Consult Samtec at www.samtec.com or 1-800-SAMTEC-9 for more information. -
Page 13: Jumper Options
Jumper Options Pin Number Signal Description J1.39 3.3V_A Analog 3.3 V J1.40 AGND Analog Ground The development platform provides a convenient mechanical and electrical interface between the serial port on the DSK and the EVM. Refer to Ti literature number SLAU090 for details regarding the development platform. - Page 14 (This page has been left blank intentionally.)
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Page 15: Analog Interface
Chapter 3 Analog Interface Topic Page Input Connections ..........Output Connections . -
Page 16: Input Connections
Input Connections 3.1 Input Connections Analog input is via a screw terminal – J2. The input can be single ended or differential. Bias current and voltage for an external microphone is provided via a screw terminal – J3. 3.2 Output Connections The output from the AIC111 is from an H-bridge driver. -
Page 17: Bill Of Materials And Schematic
Chapter 4 Bill of Materials and Schematic The bill of materials and schematic for the AIC111EVM are provided in this chapter. Topic Page Bill of Materials .......... -
Page 18: Bill Of Materials
Bill of Materials 4.1 Bill of Materials The following table contains a complete Bill of Materials for the AIC111EVM. The schematic diagram is also provided for reference. Contact the Product Information Center or e-mail dataconvapps@list.ti.com for questions regarding this EVM. - Page 19 Bill of Materials Used Value Ref Des Description Vendor Part Number SW-PB Switch LT TOUCH 6X3.5 Panasonic EVQ-PJU04K 240GF SMD TP_0.025 TP_0.025 AVss AVss Test Point - single 0.025” Test Point - single 0.025” Keystone Keystone 5000 5000 B_MCLK B_MCLK Electronics Electronics DVss_Hbr...
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Page 20: Schematic
Schematic 4.2 Schematic The schematics are shown on the following pages. - Page 21 Revision History ECN Number Approved CODEC Power & Interface 12500 TI Boulevard. Dallas, Texas 75243 Title: AIC111 Top Level diagram Engineer: Joe Purvis DOCUMENTCONTROL # REV: 6448741 Drawn By: Joe Purvis FILE: DATE: SIZE: 13-May-2003 SHEET: AIC111 RevA_Schematic Page 1...
- Page 22 Revision History ECN Number Approved SN74AUC1G125 SYNC_RESET* DVss_Buff SN74AUC1G125 B_LBM DVss_Buff SN74AUC1G125 DV_REG SCLK B_SCLK DVss_Buff AVdd DVss_Buff SN74AUC1G125 AVss B_FS SN74AUC1G125 DVss_Buff B_DIN AVss_1 SDIN DVss_Buff SN74AUC1G125 DOUT B_DOUT AVss_2 SDOUT AVss DVss_Buff AVIN_P BUF_DVss DVss_Buff DVdd_Buff MCLKIN AVIN_M BUF_DVdd DVdd_Core SN74AUC1G125...
- Page 23 Revision History ECN Number Approved DVdd_Core AVdd AV_in DV_in SM_FB_2773044447 SYNC_RESET* 130K 0.047uF 100K 4.7uF 0.1uF 169K NC/FB TPS77001 AGND 0.1uF 169K AVss DGND DGND DGND B_SCLK DGND B_SCLK DGND DV_REG DVdd_Buff DV_in DGND DGND B_DOUT B_LBM B_DOUT B_LBM B_FS B_FS 0.047uF 100K...
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