Texas Instruments PCM186xEVM User Manual Download Page 4 | Manualshive

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Texas Instruments PCM186xEVM User Manual Download Page 4

Getting Started

3

Getting Started

3.1

System Hardware Overview

The PCM186xEVM can be controlled though the use of the USB using the included USB-I2X board. The
USB-I2X board connects to a PC via USB and provides digital control signals to the EVM board via I2C.
The USB-I2X board also can supply serial digital audio in and out from the PC to the EVM through an I2S
interface. When connected, the USB-I2X board also supplies all of the power required for the EVM
through USB. The PCM186xEVM also uses a PCM9211 which allows the EVM to receive and transmit
digital audio via optical/SPDIF connectors on the EVM. The PCM9211 converts the optical data to I2S
which can be routed to the PCM186xEVM.

The USB-I2X board mates to the PCM186xEVM as shown in

.

Figure 3. PCM186xEVM Mated to the USB-I2X Board

4

PCM186xEVM

SLAU615 – December 2014

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Copyright © 2014, Texas Instruments Incorporated

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Summary of Contents for PCM186xEVM

Page 1: ...load 5 4 Hardware 6 4 1 Power Requirements 6 4 2 Connectors and Headers 6 4 3 Board Configurations 8 4 4 Solder Options 9 5 Software 10 5 1 Installation 10 5 2 Navigation and Features 12 6 Schematics Bill of Materials and Layouts 15 6 1 Schematics 15 6 2 Bill of Materials 17 6 3 Layouts 19 List of Figures 1 Picture of PCM186xEVM 3 2 Picture of USB I2X Board 3 3 PCM186xEVM Mated to the USB I2X Boar...

Page 2: ... are shown in Table 1 Table 1 Part Differences Part Number Register Programmable Hardware Programmable Number of ADC Channels PCM1860 Yes 2 PCM1861 Yes 2 PCM1862 Yes 2 PCM1863 Yes 2 PCM1864 Yes 4 PCM1865 Yes 4 The PCM186xEVM has an external 5 V power connection or USB 5 V through the USB I2X board to power the EVM In conjunction with the USB I2X board all of the register programming can be done vi...

Page 3: ...gure 1 Picture of PCM186xEVM 2 2 USB I2X board Figure 2 is a photo of the USB I2X board Figure 2 Picture of USB I2X Board 2 3 Micro USB Cable A micro USB cable is also included in the box 3 SLAU615 December 2014 PCM186xEVM Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 4: ... through an I2S interface When connected the USB I2X board also supplies all of the power required for the EVM through USB The PCM186xEVM also uses a PCM9211 which allows the EVM to receive and transmit digital audio via optical SPDIF connectors on the EVM The PCM9211 converts the optical data to I2S which can be routed to the PCM186xEVM The USB I2X board mates to the PCM186xEVM as shown in Figure...

Page 5: ...ifferent modes These modes also control how the audio data is routed The default mode is Mode 0 for more detail on the available modes refer to Section 4 3 3 3 Software Download The EVM is controlled through the PurePath Console Request PurePath Console access here www ti com tool purepathconsole Once access is granted download the PurePath Console here http cc ext ti com 5 SLAU615 December 2014 P...

Page 6: ... I2C I2S and 5 V connections to the PCM186x EVM 5V Input for power if no USB I2X board is used Output for 5 V if USB I2X board is used Vin1 Pins 3 red top input and 4 white bottom input of the PCM186x AC coupled Vin2 Pins 1 red top input and 2 white bottom input of the PCM186x AC coupled Vin3 Pins 30 red top input and 29 white bottom input of the PCM186x AC coupled Vin4 Pins 28 red top input and 2...

Page 7: ...s if the jumper is removed Mic Bias is disconnected J10 J10 is used to connect the crystal output Y0 to a buffer If the crystal output is being used insert J10 J11 J11 is used to connect the Xi pin of the PCM186x to ground If the crystal Y0 is not used Xi should be grounded by inserting a jumper on J11 If the crystal is used remove the J11 jumper Opto Out Opto out is the SPDIF output of the PCM921...

Page 8: ...e optical input also sets the sample rate of the system to match the optical rate If no input is provided the sample rate is generated by the PCM9211 and is 48 kHz The I2X board provides I2C control and power only In mode 0 Y0 can be removed and jumpers should be placed on J8 and J11 Figure 6 Mode 0 Block Diagram In Mode 1 the PCM186x is the master Figure 7 Clocking is provided by Y0 I2S is sent t...

Page 9: ...alled Installed Removed Installed Mode2 I2S input and output to USB running on I2S Installed Removed Installed Do not care clocks 4 4 Solder Options The PCM1861 is completely hardware controlled In addition to the hardware controlled versions of the PCM186x family all of the devices have GPIO In order to accommodate these hardware and GPIO options a series of 3 way resistor connections are include...

Page 10: ... PCM186X plugin Save the plugin in a file to access later start the PPC2 installation Once the installation is complete start PPC2 Plug in the USB cable connected to the USB I2X board which should be connected to the PCM186X EVM If the GUI does not automatically load the PCM186X GUI you must manually select the plugin Figure 10 PCM186X EVM GUI Select Manually Choose a Target a menu should appear t...

Page 11: ...et Selection Window If PCM186X does not appear in the list select Add Target Find the PCM186X plugin that was previously downloaded 11 SLAU615 December 2014 PCM186xEVM Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 12: ...PurePath Console is the ability to load save and run scripts Scripts are text files that include each I2C write that is going to be sent to the PCM186x Although the GUI is useful for making rapid changes and experiments the goal is developing a script that can be run and saved To access the script editing area click on the Direct I2 C Read Write tab 12 PCM186xEVM SLAU615 December 2014 Submit Docum...

Page 13: ...etting to get audio out from the EVM quickly connect a left and right analog audio signal into Vin1 and connect a system that accepts digital audio through the optical out To improve performance supply a differential audio signal to the part and select 1P 1M Differential and 2P 2M Differential in the Block Diagram tab 13 SLAU615 December 2014 PCM186xEVM Submit Documentation Feedback Copyright 2014...

Page 14: ...ware www ti com Figure 14 1P 1M Differential and 2P 2M Differential Shown in Block Diagram Tab 14 PCM186xEVM SLAU615 December 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 15: ... 2 100LS C8 0805 X7R 10ufd 10V C12 0805 X7R 10ufd 10V R12 0603 649 GND LED 0603 Green 2 1V Y0 2 1 HC 49USX 24 576MHz XO XI C6 0603 COG 20pfd 50V C7 0603 COG 20pfd 50V GND GND 2L Orange 2R Orange 1L Orange 1R Orange GND R13 0402 4 99K DIN Orange SCKI Orange BCK Orange LRCK Orange DOUT Orange GND C19 0402 X7R 0 1ufd 16V J10 1 2 100LS 100LS J11 1 2 GND 1 8V 1 8V 1 8V R40 0402 100K GND 100K 0402 R41 G...

Page 16: ...K 5V 3 3V GND J1 0 10 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 R33 0402 10 0K GND 3 3V C30 0402 X5R 1 0ufd 10V R30 0402 10 0K R32 0402 10 0K 8 7 6 5 4 3 2 1 24LC256 I MS U2 MSOP8 MS GND R31 0402 10 0K 3 3V GND 3 3V GND R23 0603 0 0 R24 0603 0 0 SCL Orange SDA Orange C22 0603 X5R 10ufd 10V C21 0402 X7R 0 1ufd 16V 3 3V GND GND R18 0402 0 0 5 R19 0402 0 0 5 R34 0603 357 GND 3 3V 0603 Green 2 1V C34 040...

Page 17: ...V 10 X7R ROHS 14 GRM1885C1H200JA01D MURATA 2 C6 C7 CAP SMD0603 CERM 20PFD 50V 5 COG ROHS 15 GRM21BR71A106KE51L MURATA 2 C8 C12 CAP SMD0805 CERM 10UFD 10V10 X7R ROHS 16 GRM155R71C104KA88D MURATA 14 C9 C11 C13 C19 C20 C21 CAP SMD0402 CERM 0 1UFD 16V X7R 10 ROHS C23 C24 C26 C32 C35 C37 C40 17 GRM188R71H104KA93D MURATA 1 C14 CAP SMD0603 CERM 0 1UFD 50V 10 X7R ROHS 18 C1608X5R1A106K TDK CORP 5 C22 C25 ...

Page 18: ...BC08DAAN SULLINS 1 J7 HEADER THRU MALE 2X8 100LS 120 TAIL GOLD ROHS 41 CTP 019 8 CONNECT TECH PRODUCTS 4 VIN1 VIN2 VIN3 VIN4 JACK DUAL RCA RA PCB METAL SHELL ROHS 42 4015 0 67 80 30 27 10 0 MILL MAX 2 XI XO PIN SOCKET 015 025in 70x55x1 0in GOLD ROHS Y0 IS INSERTED INTO XI AND XO PIN SOCKETS 43 ECS 245 7 20 4X ECS 1 Y0 CRYSTAL HC 49USX 24 576MHz SERIES 30ppm 20pfd FUND ROHS 44 5003 KEYSTONE ELECTRO...

Page 19: ...outs 6 3 Layouts Figure 17 through Figure 19 display the board layouts for the PCM186xEVM Figure 17 Top Silk Screen Figure 18 Top copper 19 SLAU615 December 2014 PCM186xEVM Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 20: ...Schematics Bill of Materials and Layouts www ti com Figure 19 Bottom Copper 20 PCM186xEVM SLAU615 December 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 21: ...esponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

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