Texas Instruments TPA6130A2EVM Manuale utente

User's Guide

SLOU185A–October 2006–Revised September 2014

TPA6130A2EVM

This user's guide describes the function, installation, and operation of the TPA6130A2EVM. Also included

are the schematic diagrams, printed-circuit board (PCB) layouts, and the bill of materials (BOM).

Contents

1 Introduction ................................................................................................................... 1

2 Operation ..................................................................................................................... 2

3 TPA6130A2EVM Schematic ............................................................................................... 7

4 TPA6130A2EVM PCB Layers.............................................................................................. 8

5 TPA6130A2EVM Parts List ............................................................................................... 10

List of Figures

1 Place Shunts Horizontally Across SCL and SDA........................................................................ 2

2 Shunts Across JP1 Powered From USB ................................................................................. 2

3 Shunts Across JP1 Powered With an External Power Supply......................................................... 3

4 Starting the Software........................................................................................................ 4

5 Software Interface ........................................................................................................... 5

6 Connect I2C Controls to JP3................................................................................................ 6

7 Shunts Across JP1 Powered With an External Power Supply......................................................... 6

8 TPA6130A2EVM Schematic ............................................................................................... 7

9 TPA6130A2EVM – Top Layer.............................................................................................. 8

10 TPA6130A2EVM – Layer 2 ................................................................................................ 8

11 TPA6130A2EVM – Layer 3................................................................................................. 9

12 TPA6130A2EVM – Bottom Layer.......................................................................................... 9

List of Tables

1 TPA6130A2EVM Parts List ............................................................................................... 10

1 Introduction

1.1 Description

The TPA6130A2 is a stereo, capacitor-free headphone driver with I2C digital volume control. The

TPA6130A2 has minimal quiescent current consumption, a flexible, 64-step, audio tapered volume control

and channel independent enables and mutes.

1.2 TPA6130A2EVM Specifications

VDD Supply voltage range –0.3 V to 5.5 V

IDD Supply current 0.5 A Maximum

PO Continuous output power per channel, 16 Ω, VDD = 5 V, THD + N = 1% 138 mW

RL Minimum load impedance 16 Ω

Microsoft, Windows are registered trademarks of Microsoft Corporation.

SLOU185A–October 2006–Revised September 2014 TPA6130A2EVM

Shunt

Shunts, Across SCL and SDA

Operation

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2 Operation

The TPA6130A2EVM can be evaluated in a stand-alone mode or when connected to existing circuits with

I2C controls.

2.1 Quick Start List for Stand-Alone Operation

A desktop or laptop with Microsoft®Windows®7 installed is required in the stand-alone operation. Connect

the EVM to a computer with a USB cable, not supplied with the EVM. A jumper allows the TPA6130A2 to

receive power from either the USB or an external supply via banana plugs. The inputs accept standard

RCA plugs. The output connection accepts standard 3.5-mm headphone plugs.

2.1.1 Software Installation Sequence

Install the TPA6130A2 EVM software with the following steps:

1. Download the software from the TPA6130A2 EVM webpage (http://www.ti.com/tool/tpa6130a2evm)

2. Unzip the files to a temporary folder.

3. Install TPA6130A2 software by executing setup.exe, located in TPA6130A2 Interface\Volume.

Accept license agreement and defaults, and complete the installation. Note: you can uninstall later with

Add/Remove Programs.It is unnecessary to repeat the steps in section 2.1.1, once the software is

installed.

2.1.2 Evaluation Module Preparations

Prepare the EVM with the following steps:

1. Install a shunt in jumper JP4; this sets the EEPROM in the EVM to the nonprogrammable mode.

2. Install shunts in jumpers JP5 and JP6. When single-ended audio inputs are used; this ties LINN and

RINN to ground.

3. Install shunts in JP2 and JP3 as Figure 1 illustrates. This sets the TPA6130A2 to accept I2C inputs

from the EVM itself.

Figure 1. Place Shunts Horizontally Across SCL and SDA

4. TPA6130A2 can be powered either from the USB or with an external power supply.

(a) To power TPA6130A2 from the USB, place shunt in JP1 as shown in Figure 2.

Figure 2. Shunts Across JP1 Powered From USB

2TPA6130A2EVM SLOU185A–October 2006–Revised September 2014

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Operation

(b) To power TPA6130A2 from external power sources, place a shunt in JP1 as Figure 3 illustrates.

Figure 3. Shunts Across JP1 Powered With an External Power Supply

Ensure that all external power sources are set to OFF.

Connect an external regulated power supply adjusted from 2.5 V–6 V to the module VDD (J8) and

GND (J7) banana jacks, taking care to observe marked polarity.

5. Connect audio source to J4 and J3.

6. Connect headphones to J2.

7. If this is the first time you plug in a TPA6130A2EVM after installing the software, follow this set of

Windows dialog, questions, and selections:

• Can Windows connect to Windows Update to search for software?

No, not at this time →Click Next

• What do you want the wizard to do?

Install from a list or specific location (Advanced) →Click Next

• Search the best drivers in these locations

Un-check Search removable media

Check Include this location in the search: →Click Browse

Browse to the software install path (default: C:\Program Files\Texas Instruments Inc\TPA6130A2

Interface)

→Click OK

→Click Next

→Click Finish

8. Proceed through installation. It is not necessary to repeat steps 8 to 11, once the driver is

installed.

2.1.3 Computer Connection Issues

Use the following steps if there are connection issues after connecting the EVM USB to the host

computer:

1. Download the USB firmware from the TPA6130A2 EVM webpage

(http://www.ti.com/tool/tpa6130a2evm).

2. Unzip the USBfirmware_V0304 folder and save to a known location.

3. Open Device Manager from the Control Panel and find the unrecognized hardware.

4. Right click on the device and open Properties.

5. Under the Driver tab click the Update Driver button.

6. Browse to the USBfirmware_V0304 folder and open dfu_driver.

7. If the device is still unrecognized, disconnect the EVM from the computer, remove the JP4 jumper from

the EVM board, and reconnect to the host computer.

8. In Device Manager under Universal Serial Bus Controllers, this component should now display as

DFUUSB.

9. Navigate back to the USBfirmware_V0304 folder and run DFUTEST.exe.

10. In the DFUTEST window, click on the Program EVM button.

11. The program now opens a browser that should be navigating within the image folder inside the

USBfirmware_V0304 folder.

12. Click on DFUEE.bin once.

13. A screen should open stating, “Set EEPROM’s I2C Address to 1010000b”. Now insert JP4 jumper and

click Ok.

14. After a few seconds Download Complete should display. Click Ok.

SLOU185A–October 2006–Revised September 2014 TPA6130A2EVM

Operation

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15. Follow the on-screen instructions.

16. A new browser window should automatically open in the same image folder.

17. Open USB-miniEVM0304_441KHZ.bin to program standard 44.1 kHz USB.

18. The previously viewed on-screen windows and instructions should display.

19. After Programming Complete is displayed, the EVM should now be displayed as USB Audio Device in

Device Manager under the sound devices drop-down menu.

20. Run the GUI.

2.1.4 Using the Software

1. Start the TPA6130A2 Interface by clicking the Start menu and clicking on the TPA6130A2 Interface

icon.

Figure 4. Starting the Software

4TPA6130A2EVM SLOU185A–October 2006–Revised September 2014

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Operation

2. The TPA6130A2 software interface is as shown in Figure 5.

Figure 5. Software Interface

NOTE: The TPA6130A2 powers up with the amplifiers disabled, muted, and the gain set to the

minimum. To hear an output, enable and unmute each channel, and set the gain to a higher

level

3. Follow these steps if the host PC running the TPA6130A2EVM GUI is also the music source.

When using Windows 7, if, after initially installing the software, the PC does not play music out of the

headphone jack:

(a) Open the Control Panel.

(b) Click on Sounds, Speech, and Audio Device Link under the Control Panel.

(d) Click on the Audio tab.

(e) Verify that the Default device under sound playback is the audio driver of the PC HW, not the

USBMODEVM TPA6130A2 GUI driver, otherwise the computer will try and send audio via USB,

not the headphone output.

(f) Change the driver in the menu to the PC Audio HW driver.

(g) Click on OK.

4. Uncheck and check Enable Left or Enable Right to place the corresponding channels in and out of

SHUTDOWN.

5. Check and uncheck Mute Left or Mute Right to place the corresponding channels in and out of MUTE.

6. Click Software Shutdown to place the TPA6130A2 in and out of SHUTDOWN.

SLOU185A–October 2006–Revised September 2014 TPA6130A2EVM

Shunt

GND

SCL

SDA

GND

External I C

Source

Operation

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7. Select the correct mode of output under Mode.

8. Adjust the Volume or Gain of the TPA6130A2 by dragging the Gain bar or clicking on the Gain display

and selecting from the drop-down menu.

9. I2C Status box reports the status of I2C communications. An error or failure has occurred if it turns red.

10. Thermal box reports the status of thermal failure. A thermal fault has occurred if it turns red.

2.2 Quick Start List When Connected to Existing Circuits With I2C Controls

The TPA6130A2EVM can be easily connected to existing circuits with I2C controls. Connections to the

EVM module can be made using banana plugs for the power supply. The inputs accept standard RCA

plugs. The output connection accepts standard 3.5-mm headphone plugs.

2.2.1 Evaluation Module Preparations

1. Install shunts in jumpers JP4, JP5, and JP6. Remove shunts in JP2 and JP3 and connect I2C controls

to JP3 as shown in Figure 6.

Figure 6. Connect I2C Controls to JP3

2. Power TPA6130A2 from external power sources; place a shunt in JP1 as shown in Figure 7.

Figure 7. Shunts Across JP1 Powered With an External Power Supply

Ensure that all external power sources are set to OFF.

Connect an external regulated power supply adjusted from 2.5 V–6 V to the module VDD (J8) and

GND (J7) banana jacks, taking care to observe marked polarity.

3. Connect audio source to J4 and J3.

4. Connect headphones to J2.

5. Set external power sources to ON. LED should illuminate.

6TPA6130A2EVM SLOU185A–October 2006–Revised September 2014

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TPA6130A2EVM Schematic

3 TPA6130A2EVM Schematic

Figure 8 shows the TPA6130A2EVM schematic.

Figure 8. TPA6130A2EVM Schematic

SLOU185A–October 2006–Revised September 2014 TPA6130A2EVM

TPA6130A2EVM PCB Layers

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4 TPA6130A2EVM PCB Layers

Figure 9 through Figure 12 illustrate the TPA6130A2EVM PCB layers.

Figure 9. TPA6130A2EVM – Top Layer

Figure 10. TPA6130A2EVM – Layer 2

8TPA6130A2EVM SLOU185A–October 2006–Revised September 2014

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TPA6130A2EVM PCB Layers

Figure 11. TPA6130A2EVM – Layer 3

Figure 12. TPA6130A2EVM – Bottom Layer

SLOU185A–October 2006–Revised September 2014 TPA6130A2EVM

TPA6130A2EVM Parts List

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5 TPA6130A2EVM Parts List

Table 1 lists the TPA6130A2EVM BOM.

Table 1. TPA6130A2EVM Parts List

Reference Description Size Qty MFR/ Part No. Vendor No.

C1, C2, C3, Capacitor, ceramic, 2.2 μF, ±10%, X5R, 10 0603 5 Kemet Digi-Key

C4, C8 V C0603C225K8PACTU 399-4911-1-ND

C5, C7, C9, Capacitor, ceramic, 1.0 μF, ±10%, X5R, 10 0603 8 TDK Digi-Key

C11, C16, V C1608X5R1A105KT 445-1321-2-ND

C17, C22,

C23

C6, C10, C25, Capacitor, ceramic, 0.1 μF, ±10%, X7R, 50 0603 7 TDK Digi-Key

C26, C27, V C1608X7R1H104KT 445-1314-2-ND

C28, C29

C13, C14 Capacitor, ceramic, 47pF 50V C0G 5% 0603 2 TDK Digi-Key

C1608C0G1H470J 445-1277-2-ND

C12, C24 6.3V, 10μF, Ceramic Chip Capacitor, 1206 2 TDK Digi-Key

±10%, X5R C3216X5R0J106K 445-1388-1-ND

C15 Tantalum Capacitor, 100μF, 10V, 10%, C 1 Kemet DigiKey

Low ESR, SMD B45197A2107K309 495-1528-2-ND

C18, C19 50V, 33pF, Ceramic Chip Capacitor, ±5%, 0603 2 TDK DigiKey

NPO C1608C0G1H330J 445-1275-1-ND

C20 50V, 100pF, Ceramic Chip Capacitor, 0603 1 TDK Digi-Key

±5%, NPO C1608C0G1H101J 445-1281-1-ND

C21 50V, 1000pF, Ceramic Chip Capacitor, 0603 1 TDK Digi-Key

±5%, NPO C1608C0G1H102J 445-1293-1-ND

C30, C31 Multilayer Varistor 0603 DNP Little Fuse Mouser

Not Installed V14MLA0603 576-V14MLA0603H

R1, R2, R3, Resistor, chip, 2.7 kΩ, 1/10W, 5% 0603 4 Panasonic Digi-Key

R10 ERJ-3GEYJ272V P2.7KGCT-ND

R4, R8 Resistor, chip, 100 kΩ, 1/16W, 5% 0603 2 Panasonic Digi-Key

ERJ-3GEYJ104V P100KGCT-ND

R5 Resistor, chip, 1.5 kΩ, 1/10W, 5% 0603 1 Panasonic Digi-Key

ERJ-3GEYJ152V P1.5KGCT-ND

R6, R7 Resistor, chip, 27.4 Ω, 1/16W, 1% 0603 2 Panasonic Digi-Key

ERJ-3EKF27R4V P27.4HCT-ND

R9 Resistor, chip, 3.09 kΩ, 1/16W, 1% 0603 1 Panasonic Digi-Key

ERJ-3EKF3091V P3.09KHCT-ND

R11, R13 0-Ohm jumper, 1/10W, 5% 0603 2 Panasonic Digi-Key

ERJ-3GEY0R00V P0.0GCT-ND

R12 RES 110Ω1/10W 1% 0603 SMD 0603 1 Panasonic Digi-Key

ERJ-3EKF1100V P110HTR-ND

Y1 6MHz Crystal SMD 1 Epson Digi-Key

MA-505 6.0000M-C0 SE2501CT-ND

S1, S2 Switch, momentary, SMD, low profile 2 Panasonic EVQ-PPBA25 Digi-Key

P8086SCT-ND

L1, L2, L3 Inductor Bead 0805 3 Steward/HZ0805E601R-00 or Digi-Key/240-1018-1-ND or

Steward/HZ0805E601R-10 Digi-Key/240-2399-1-ND

D1 Diode, LED, Green 0805 1 Lumex Digi-Key

SML-LXT0805GW-TR 67-1553-2

J1 USB Type B Slave Connector Thru-Hole 1 Mill-Max Digi-Key

897-30-004-90-000000 ED90003-ND

J2 Headphone Jack, shielded, 3.5mm 1 CUI Digi-Key

SJ1-3533NS CP1-3533NS-ND

J3, J4 Phono jack, PC mount, switched, red 2 Switchcraft Newark

PJRAN1X1U03 16C1860

J7, J8 Banana Jack w/knurled Thumbnut (nickel 2 Johnson Digi-Key

plate) 111-2223-001 J587-ND

JP1 Header, 3 position, male 2mm 1 Norcomp DigiKey

2163-36-01-P2 2163S-36

JP2, JP4– Header, 2 position, male 2mm 4 Norcomp DigiKey

JP6 2163-36-01-P2 2163S-36

JP3 Header, 4 position, male 2mm 1 Norcomp DigiKey

2163-36-01-P2 2163S-36

10 TPA6130A2EVM SLOU185A–October 2006–Revised September 2014

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