Texas Instruments PCM1802EVM User Manual Download Page 6 | Manualshive

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Texas Instruments PCM1802EVM User Manual Download Page 6

7 Board Layout

illustrate the EVM board layout.

Figure 7-1. PCM1802EVM and PCM1803AEVM Top Layer

Figure 7-2. PCM1802EVM and PCM1803AEVM Power Plane 1

Board Layout

6

PCM1802EVM and PCM1803AEVM Evaluation Module

SBAU384 – JULY 2021

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Copyright © 2021 Texas Instruments Incorporated

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Summary of Contents for PCM1802EVM

Page 1: ...M Table of Contents 1 Trademarks 1 2 Introduction 2 3 Power Supply 2 4 Hardware Configuration 3 5 Interfacing With the EVM 5 5 1 PCM1802EVM and PCM1803AEVM Inputs 5 5 2 PCM1802EVM and PCM1803AEVM Output 5 6 Switching Between the PCM1802EVM and PCM1803AEVM 5 7 Board Layout 6 8 Schematic and Bill of Materials 7 8 1 Schematic 8 8 2 Bill of Materials 10 9 Related Documentation 14 1 Trademarks All trad...

Page 2: ...he EVMs The EVMs are powered with a single 5 V supply Access to the converter output is provided on the audio serial interface in I2S right justified RJ and left justified LJ formats 3 Power Supply The PCM1802EVM and PCM1803AEVM are powered with a single 5 V power supply connected to J17 An onboard low dropout regulator converts the 5 V supply to the 3 3 V rail used by the ADC The analog supply VC...

Page 3: ...ode a valid SCKI is still required for operation Table 4 1 PCM1802EVM and PCM1803AEVM Headers and Jumpers Designator Function J9 Audio serial interface system clock input SCK_IN J8 Audio serial interface bit clock input or output BCK J15 Audio serial interface latch enable input or output LRCLK J18 Audio serial interface digital data output DOUT J16 PCM1802 only Frame synchronous clock input and o...

Page 4: ...ock timing of the PCM1802 and PCM1803A device see the PCM1802 Single Ended Analog Input 24 Bit 96 kHz Stereo A D Converter and PCM1803A Single Ended Analog Input 24 Bit 96 kHz Stereo A D Converter data sheets respectively In addition the SCKI signal can be sourced from an onboard oscillator or provided externally at J9 J4 selects the SCKI clock source SCK_OSC or externally from J9 SCK_IN by changi...

Page 5: ...ird pin of each signal is connected to GND 6 Switching Between the PCM1802EVM and PCM1803AEVM As discussed previously the populated components differ between the two variants but the PCM1802EVM and PCM1803AEVM use the same hardware and PCB layout The variants are differentiated by the label at the top of the PCB and by the variant name DC167 001 PCM1802EVM and DC167 002 PCM1803AEVM within the manu...

Page 6: ...layout Figure 7 1 PCM1802EVM and PCM1803AEVM Top Layer Figure 7 2 PCM1802EVM and PCM1803AEVM Power Plane 1 Board Layout www ti com 6 PCM1802EVM and PCM1803AEVM Evaluation Module SBAU384 JULY 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Page 7: ...M Bottom Layer 8 Schematic and Bill of Materials This section contains the EVM schematics and bill of materials www ti com Schematic and Bill of Materials SBAU384 JULY 2021 Submit Document Feedback PCM1802EVM and PCM1803AEVM Evaluation Module 7 Copyright 2021 Texas Instruments Incorporated ...

Page 8: ...k R17 OVERSAMPLE SELECTION RATIO 3 3V 1 2 3 J13 GND 10 0k R18 HPF BYPASS SELECTION CONTROL 3 3V 1 2 3 J14 GND 10 0k R19 POWER DOWN CONTROL FORMAT 0 SELECTION SELECTION SELECTION GND FSYNC 1 2 3 J16 SCKI SOURCE FORMAT NUMBER FMT1 FMT0 FORMAT 0 0 0 Left justified 24 bit 1 0 1 I2S 24 bit 2 1 0 Right justified 24 bit 3 1 1 Right justified 20 bit VINL VINR VREF1 VREF2 SCKI_pin BCK_pin LRCK_pin FMT0 FMT...

Page 9: ...18 HPF BYPASS SELECTION CONTROL 3 3V 1 2 3 J14 GND 10 0k R19 POWER DOWN CONTROL FORMAT 0 SELECTION SELECTION SELECTION GND FSYNC 1 2 3 J16 SCKI SOURCE FORMAT NUMBER FMT1 FMT0 FORMAT 0 0 0 Left justified 24 bit 1 0 1 I2S 24 bit 2 1 0 Right justified 24 bit 3 1 1 Right justified 20 bit VINL VINR VREF1 VREF2 SCKI_pin BCK_pin LRCK_pin FMT0 FMT1 OSR BYPAS nPDWN Pin_9 DOUT_pin MODE0 MODE1 OSR OVERSAMPLI...

Page 10: ...ire 100mil spacing pkg of 200 TH Wire Jumper 923345 01 C 3M J3 J4 J6 J8 J9 J10 J11 J12 J13 J14 J15 J16 J18 13 Header 100mil 3x1 Gold TH 3x1 Header TSW 103 07 G S Samtec J5 1 RCA Jack 1Pos Tin White R A TH RCA Jack 1Pos R A TH RCJ 013 CUI Inc J7 1 RCA Jack 1Pos Tin Red R A TH RCA Jack 1Pos R A TH RCJ 012 CUI Inc J17 1 Terminal Block 3 5mm Pitch 2x1 TH 7 0x8 2x6 5mm ED555 2DS On Shore Technology LBL...

Page 11: ...ultipurpose Red TH Red Multipurpose Testpoint 5010 Keystone TP10 TP11 2 1mm Uninsulated Shorting Plug 10 16mm spacing TH Shorting Plug 10 16mm spacing TH D3082 05 Harwin U1 1 IC ADC 24BIT STER 96KHZ 20 SSOP SSOP20 PCM1802DBR Texas Instruments U2 1 Crystal Oscillator Driver DCK0006A SOT SC70 6 DCK0006A SN74LVC1GX04DCKR Texas Instruments U3 1 Single Output LDO 400mA Adj 1 2 to 5 5V Cap free Low Nois...

Page 12: ...8 13 Header 100mil 3x1 Gold TH 3x1 Header TSW 103 07 G S Samtec J5 1 RCA Jack 1Pos Tin White R A TH RCA Jack 1Pos R A TH RCJ 013 CUI Inc J7 1 RCA Jack 1Pos Tin Red R A TH RCA Jack 1Pos R A TH RCJ 012 CUI Inc J17 1 Terminal Block 3 5mm Pitch 2x1 TH 7 0x8 2x6 5mm ED555 2DS On Shore Technology LBL1 1 Thermal Transfer Printable Labels 0 650 W x 0 200 H 10 000 per roll PCB Label 0 650 x 0 200 inch THT ...

Page 13: ...nsulated Shorting Plug 10 16mm spacing TH Shorting Plug 10 16mm spacing TH D3082 05 Harwin U1 1 IC ADC 24BIT STER 96KHZ 20 SSOP SSOP20 PCM1803ADBR Texas Instruments U2 1 Crystal Oscillator Driver DCK0006A SOT SC70 6 DCK0006A SN74LVC1GX04DCKR Texas Instruments U3 1 Single Output LDO 400mA Adj 1 2 to 5 5V Cap free Low Noise Reverse Current Protection DBV0005A SOT 23 5 DBV0005A TPS73601DBVR Texas Ins...

Page 14: ...eo A D Converter data sheet 2 Texas Instruments PCM1803A Single Ended Analog Input 24 Bit 96 kHz Stereo A D Converter data sheet Related Documentation www ti com 14 PCM1802EVM and PCM1803AEVM Evaluation Module SBAU384 JULY 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Page 15: ...other than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Page 16: ... These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Page 17: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Page 18: ... any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Page 19: ...OR DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Page 20: ...s are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you wi...

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