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Texas Instruments ADCx120EVM Скачать руководство пользователя страница 7

2.2.1 Line Inputs

For the line input configuration (shown in

), the TLV320ADCx120 captures the audio signal provided

through terminals J2 (IN1) and J3 (IN2). The input accepted in this mode is a differential, 2-VRMS, full-scale
audio signal. If a single-ended source is used, then 1-VRMS signal is supported.

Figure 2-8. TLV320ADCx120EVB Connection for Line Input Application

Hardware Overview

SBAU359A – MAY 2019 – REVISED JUNE 2021

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ADCx120EVM-PDK, PCMD3140EVM-PDK Evaluation Module

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Copyright © 2021 Texas Instruments Incorporated

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Содержание ADCx120EVM

Страница 1: ...AC MB Settings 3 2 2 ADCx120EVM PDK Hardware Settings 6 3 Software Overview 12 3 1 PurePath Console 3 Installation 12 3 2 ADCx120EVM GUI Installation 13 4 GPIO1 Settings 15 5 Master Mode Operation 16 6 Quick Start 16 6 1 Configuring the Audio Serial Bus for the I2S Output 18 6 2 Saving a Configuration 19 7 Schematic and Bill of Materials 20 7 1 ADCx120EVM PDK Schematic and Bill of Materials 20 7 2...

Страница 2: ...GPIO1 Function and Output Drive Settings 15 Figure 4 2 GPIO1 Schematic 15 Figure 6 1 Loading Presets 16 Figure 6 2 Onboard Mic Preset 16 Figure 6 3 MIC Bias Configuration 17 Figure 6 4 Standby to Active Mode 17 Figure 6 5 Disabled Controls in Active Mode 17 Figure 6 6 Audio Serial Bus Tab 18 Figure 6 7 ASI Format Configuration 18 Figure 6 8 Clock Monitor Pane 18 Figure 6 9 Channel Output Configura...

Страница 3: ...diagram of the ASI routing on the AC MB MUX USB Optical Input Stereo Analog Input External ASI Header Source Selector SW2 Audio Processor PCM9211 Optical Output To EVM Figure 2 1 AC MB Audio Serial Interface Routing Switch SW2 on the AC MB selects the audio serial bus that interfaces with the TLV320ADCx120EVB Next to switch SW2 the AC MB has a quick reference table to identify the audio serial int...

Страница 4: ...nnected the PCM9211 captures the input signal provided through the analog input and streams the signal to the evaluation module This feature can be useful when a digital input DAC is connected to the AC MB providing an analog input for quick evaluation In Auxiliary Analog Audio mode the audio serial interface format is fixed to a 24 bit 48 kHz I2S mode 2 1 1 3 External In this mode the audio seria...

Страница 5: ...r Supply Distribution of the AC MB The AC MB can be powered from the host computer by using the USB 5 V power supply VBUS by shorting header J5 USB POWER Additionally the AC MB can be powered from an external power supply connected to terminal J4 EXTERNAL POWER Header J5 must be open for external supply operation The IOVDD voltage for the digital signals that is provided to the evaluation module i...

Страница 6: ... to allow the user to evaluate the device across multiple operation modes The different operation modes are highlighted in this section The INxP and INxM pins of the TLV320ADCx120 can optionally connect to onboard microphones for quick evaluation and can be optionally configured to bypass the input decoupling capacitors for evaluating the functionality of digital microphones GPIOs or in DC coupled...

Страница 7: ... in this mode is a differential 2 VRMS full scale audio signal If a single ended source is used then 1 VRMS signal is supported Figure 2 8 TLV320ADCx120EVB Connection for Line Input Application www ti com Hardware Overview SBAU359A MAY 2019 REVISED JUNE 2021 Submit Document Feedback ADCx120EVM PDK PCMD3140EVM PDK Evaluation Module 7 Copyright 2021 Texas Instruments Incorporated ...

Страница 8: ... preserve the performance of the microphones The PCMD3140EVM PDK only includes the T5818 digital microphone but the same script in Table 2 1 and Figure 2 9 can be used for configuring the microphone Table 2 1 Onboard Mic Jumper Configuration Jumper Setting J13 Short J16 Short J17 Short J12 Short J15 Short J19 Short J4 Open J5 Open J6 Open J7 Open J8 Pins 1 2 MICBIAS J9 Open if 3 3V AVDD is used Sh...

Страница 9: ...2 81 Wake up device and enable AREG d 10 wait 10 ms w 9c 0d 01 Set Ch 3 data to ASI left slot 1 w 9c 22 41 Set IN2M_GPO1 to PDCMLK output Default 3 072MHz w 9c 2b 50 Set IN2P_GPI1 to PDMDIN2 for channel 3 and 4 w 9c 73 A0 Enable input Ch 1 and Ch 3 w 9c 74 A0 Enable ASI Output Ch 1 and Ch 3 slots w 9c 75 E0 Power up ADC MICBIAS and PLL www ti com Hardware Overview SBAU359A MAY 2019 REVISED JUNE 20...

Страница 10: ... J3 and J10 Figure 2 10 Figure 2 11 and Figure 2 12 illustrate the recommended pin connections for common use cases Note the GPIO1 pin is referenced to the IOVDD domain while IN2P_GPI1 MICBIAS_GPI2 and IN2M_GPO1 are all referenced to AVDD Thus if using 2 analog mics in addition to digital mics it is recommended that AVDD and IOVDD be set to the same voltage or a level translator be placed between ...

Страница 11: ... AMIC2 GND DMIC1 2 GND PDMOUT AVDD PDMCLK AVDD AVDD Requires AVDD IOVDD Figure 2 12 External Mics 2x Analog and 2x Digital Microphones www ti com Hardware Overview SBAU359A MAY 2019 REVISED JUNE 2021 Submit Document Feedback ADCx120EVM PDK PCMD3140EVM PDK Evaluation Module 11 Copyright 2021 Texas Instruments Incorporated ...

Страница 12: ...the PPC3 framework PPC3 must be installed prior to downloading the ADCX120EVM PDK GUI To download the PPC3 visit www ti com tool PUREPATHCONSOLE and request access If the PPC3 is already installed proceed to Section 3 2 Figure 3 1 shows the setup directory for the PPC3 installation Figure 3 1 PurePath Console 3 Installation Open the PPC3 installer and follow the instructions in the setup wizard So...

Страница 13: ...pp tile Figure 3 2 PurePath Console 3 App Center The TLV320ADCx120 GUI is designed to work with up to four devices at any time As shown in Figure 3 3 choose the 1 device radial button and click New Figure 3 3 Initial GUI Configuration www ti com Software Overview SBAU359A MAY 2019 REVISED JUNE 2021 Submit Document Feedback ADCx120EVM PDK PCMD3140EVM PDK Evaluation Module 13 Copyright 2021 Texas In...

Страница 14: ...ext will read ADCx120 offline If the EVM is detected a Connect button appears Clicking this button connects the hardware Figure 3 5 Hardware Connect When the hardware is connected the Connect button changes to read Disconnect and the device is ready to be configured Software Overview www ti com 14 ADCx120EVM PDK PCMD3140EVM PDK Evaluation Module SBAU359A MAY 2019 REVISED JUNE 2021 Submit Document ...

Страница 15: ...never an IRQ occurs such as when the VAD is configured to generate an interrupt on voice detection If GPIO1 is to be used a function other than interrupt modifications may be required to the 0 Ω resistors installed Figure 4 2 shows a schematic for the GPIO1 pin layout Figure 4 1 GPIO1 Function and Output Drive Settings Figure 4 2 GPIO1 Schematic www ti com GPIO1 Settings SBAU359A MAY 2019 REVISED ...

Страница 16: ...her clocks To use the External ASI header it is necssary to install a 0 Ohm resistor at R11 on the EVM which is depopulated by default 6 Quick Start Configure the AC MB for the USB audio TDM and the TLV320ADCx120EVB for the onboard microphone inputs The GUI comes with preset files to that can be used for easy initial setup Select the Load preset option in the top corner of the GUI and load the On ...

Страница 17: ...hange the mode from standby to active Figure 6 4 Standby to Active Mode When active mode is enabled any controls not configurable in active mode are grayed out These controls can be changed again when the device is brought out of active mode Figure 6 5 shows which controls are disabled Figure 6 5 Disabled Controls in Active Mode Audio can now be captured on your PC using the audio program of your ...

Страница 18: ...at configuration pane shown in Figure 6 7 change the protocol format to I2S and the word length to 16 bits Figure 6 7 ASI Format Configuration When the protocol format is changed to I2S in the GUI the USB audio processor on the AC MB also changes the audio format to I2S The GUI reads the ASI status register page 0 register 0x15 providing the detected sampling rate and BCLK and FSYNC ratio The ASI ...

Страница 19: ...o is fixed at 64 The EVM is now ready for use with the audio recording program of your choice 6 2 Saving a Configuration To save a configuration as shown in Figure 6 10 click the upper left corner of the PPC3 window and select Save The configuration is saved as a ppc3 file To load a saved configuration click the upper left corner of the PPC3 window and select Open Navigate to the location of the s...

Страница 20: ... for the ADCx120EVM PDK 7 1 1 ADCx120EVM PDK Schematic Figure 7 1 shows the schematics for the ADCx120EVM PDK Figure 7 1 ADCx120EVM PDK Schematics Schematic and Bill of Materials www ti com 20 ADCx120EVM PDK PCMD3140EVM PDK Evaluation Module SBAU359A MAY 2019 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 21: ...n C26 1 1uF CAP CERM 1 uF 16 V 10 X7R 0603 0603 EMK107B7105KA T Taiyo Yuden D1 D3 2 Green LED Green SMD LED_0805 LTST C170KGKT Lite On D2 1 Red LED Red SMD 1206 LTST C150CKT Lite On H1 H3 2 Small nylon hex nut 0 10 thick with a 0 250 outside diameter and a 4 40 threading Hex Nut 4 40 Thread 250 Head Dia 9605 Keystone H2 H4 2 HEX STANDOFF 4 40 NYLON 3 4 HEX STANDOFF 4 40 NYLON 3 4 4804 Keystone J1 ...

Страница 22: ... R9 2 33 RES 33 5 0 1 W AEC Q200 Grade 0 0603 0603 CRCW060333R0J NEA Vishay Dale R6 R8 2 0 RES 0 5 0 1 W 0603 0603 CRCW06030000Z 0EA Vishay Dale R10 R11 2 0 RES 0 1 0 1 W AEC Q200 Grade 0 0603 0603 RMCF0603ZT0R0 0 Stackpole Electronics Inc R12 1 5 1k RES 5 1 k 5 0 063 W 0402 0402 CRCW04025K10J NED Vishay Dale R13 R16 R17 3 2 2k RES 2 2 k 5 0 063 W AEC Q200 Grade 0 0402 0402 CRCW04022K20J NED Visha...

Страница 23: ...ts U2 1 Automotive Catalog Dual 200mA Low IQ Low Dropout Regulator for Portable Devices DSE0006A WSON 6 DSE0006A TLV7103318QDS ERQ1 Texas Instruments U5 1 EEPROM 512KBIT 400KHZ 8TSSOP TSSOP 8 24LC512 I ST Microchip C6 0 1uF CAP CERM 1 uF 16 V 10 X7R 0603 0603 EMK107B7105KA T Taiyo Yuden FID1 FID2 FID3 FID4 FID5 FID6 0 Fiducial mark There is nothing to buy or mount N A N A N A R2 R3 R4 R7 0 0 RES 0...

Страница 24: ...M DIN2 EVM DOUT2 S 1 2 1B1 3 1B2 4 1A 5 2B1 6 2B2 8 GND 3A 9 3B2 10 3B1 11 4A 12 4B2 13 4B1 14 7 2A OE 15 VCC 16 U15 SN74CB3Q3257DGVR I2S SEL S0 GND GND I2S SEL S1 GND X DIN2 9211 DOUT 9211 DIN2 9211 DIN2 R40 DNP 0 R39 9211 DIN1 2 1 9211 DIN2 3 4 SW2 A6SN 2104 X SPI SS1 EVM SPI SS1 EVM GPO2 EVM GPI2 EVM GPO1 EVM GPI1 X P2 X P3 3 3V IOVDD GND GND GPIO Translator EVM DIN3 EVM DOUT3 EVM DIN4 EVM DOUT...

Страница 25: ...C1H270 JB01 MuRata C50 C51 2 10uF CAP AL 10 uF 16 V 20 SMD D3xL5 4mm UWX1C100MCL2 GB Nichicon C52 C58 C61 C63 4 10uF CAP CERM 10 uF 16 V 20 X5R 0603 0603 EMK107BBJ106M A T Taiyo Yuden C54 1 4700p F CAP CERM 4700 pF 16 V 10 X7R 0402 0402 885012205029 Wurth Elektronik C55 1 0 068 uF CAP CERM 0 068 uF 50 V 10 X7R AEC Q200 Grade 1 0402 0402 CGA2B3X7R1H68 3K050BB TDK D1 D5 2 Blue LED Blue SMD LED_0603 ...

Страница 26: ... 2 2k RES 2 2 k 5 0 063 W AEC Q200 Grade 0 0402 0402 CRCW04022K20J NED Vishay Dale R4 R10 R11 R12 R15 R16 R18 R19 R20 R21 R22 R23 R24 13 33 2 RES 33 2 1 0 05 W 0201 0201 RC0201FR 0733R 2L Yageo America R5 1 47 0k RES 47 0 k 1 0 0625 W 0402 0402 RC0402FR 0747K L Yageo America R6 1 10 0k RES 10 0 k 1 0 1 W 0402 0402 ERJ 2RKF1002X Panasonic R7 R8 2 47k RES 47 k 5 0 063 W AEC Q200 Grade 0 0402 0402 CR...

Страница 27: ...uffer Driver with Open Drain Output DCK0006A SOT SC70 6 DSF0006A SN74LVC2G07DS FR Texas Instruments U5 1 Single Channel Ultra Small Adjustable Supervisory Circuit With Active High Open Drain Output DRY0006A USON 6 DRY0006A TPS3897ADRYR Texas Instruments U6 1 Automotive Catalog Dual 200mA Low IQ Low Dropout Regulator for Portable Devices DSE0006A WSON 6 DSE0006A TLV7103318QDS ERQ1 Texas Instruments...

Страница 28: ... Instruments Y1 1 OSC 24 MHz 2 25 3 63 V SMD 2x1 6mm ASTMLPA 24 000 MHZ EJ E T Abracon Corporation Y2 1 Crystal 24 576 MHz 10pF SMD 2 5x0 5x2 0mm ABM10 24 576MH Z E20 T Abracon Corporation FID1 FID2 FID3 FID4 FID5 FID6 0 Fiducial mark There is nothing to buy or mount N A N A N A R40 0 0 RES 0 1 0 1 W AEC Q200 Grade 0 0603 0603 RMCF0603ZT0R0 0 Stackpole Electronics Inc TP1 TP2 TP14 TP15 0 Test Poin...

Страница 29: ...me Create fileReader object fileInfo audioinfo infile_name Copy info from infile_name fileWriter dsp AudioFileWriter outfile_name SampleRate deviceReader SampleRate DataType int32 Create fileWriter object audioOut audioDeviceWriter SampleRate fileInfo SampleRate Setup audio playback setup audioOut zeros deviceReader SamplesPerFrame fileInfo NumChannels while isDone fileReader For each block played...

Страница 30: ...rent version Changes from Revision December 2020 to Revision A June 2021 Page Added PCMD3140EVM PDK to document 1 Revision History www ti com 30 ADCx120EVM PDK PCMD3140EVM PDK Evaluation Module SBAU359A MAY 2019 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 31: ...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...

Страница 32: ... 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...

Страница 33: ...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...

Страница 34: ... 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...

Страница 35: ...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...

Страница 36: ...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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