Texas Instruments TA 5 1 Q15B5EVM-K Series Bedienungsanleitung

EVM User's Guide: TAC5412Q15B5EVM-K TAC5411Q15B5EVM-K

TAA5412Q15B5EVM-K

TAx5x1xQ15B5EVM-K Evaluation Module

Description

This user guide describes the functionality of

the TAC5412Q15B5EVM-K, TAC5411Q15B5EVM,

or TAA5412Q15B5EVM-K evaluation kit. The

TAx5x1xQ15B5EVM-K evaluation module (EVM)

allows the user to test the capabilities of

Texas Instruments’ two-channel high-performance

ADC TAA5412-Q1, a two-channel TAC5412-Q1 or

TAC5411-Q1, a single-channel high-performance

codec. Other variants listed in Table 1-1 are also

supported where users will replace the U1 unit with

the device of interest. The evaluation module is paired

with the AC-MB, a flexible motherboard that provides

power, control, and digital audio data to the evaluation

module.

Get Started

1. Order the EVM from the TAx5x12 product folder.

2. Download the latest TAx5x12 data sheet.

3. Request access and download the PPC3 GUI

from the TAx5x12 product folder.

Features

• Complete evaluation kit for the TAC5x12-Q1

(two-channel codec), TAC5x11-Q1 (single-channel

codec), or TAA5412-Q1 (two-channel ADC).

• High-performance mono/stereo codec dynamic

range: 120 dB DAC and 110 dB ADC or standard

performance 106 dB DAC and 102 dB ADC

• On-board microphones provided for voice

recording testing

• Direct access to digital audio signals and control

interface for simple end-system integration

• USB connection to PC provides power, control,

and streaming audio data for easy evaluation

• On-board diagnostic scenarios for analog audio

input

Applications

•Emergency E-Call

•Telematics control unit

•Automotive active noise cancellation

•Automotive head units

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TAx5x1xQ15B5EVM-K Evaluation Module 1

1 Evaluation Module Overview

1.1 Introduction

The TAx5x1XQ15B5EVM is an evaluation module (EVM) designed to demonstrate the performance and

functionality of the TAx5x1x-Q1 family of devices. This family includes the devices shown in Table 1-1 with

differences in performance and function noted.

Table 1-1. TAx5x1x-Q1 Family

Device ADC DR (dB) DAC DR (dB) Feature

TAC5412-Q1 110 120 Stereo codec

TAC5411-Q1 110 120 Mono codec

TAC5312-Q1 102 106 Stereo codec

TAC5311-Q1 102 106 Mono codec

TAA5412-Q1 110 NA Stereo ADC

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1.2 Kit Contents

• TAC5412-Q1, TAC5411-Q1 or TAA5412-Q1 device

• TAx5x1XQ15B5 EVM/daughterboard

• AC-MB controller/motherboard

1.3 Specification

The TAx5x1XQ15B5EVM-K evaluation module (EVM) paired with the AC-MB, a flexible motherboard that

provides power, control, and digital audio data to the evaluation module, allows the user to record and playback

audio signals. The configuration for the TAx5x1x-Q1 family of devices is done through the PurePath™ Console 3

(PPC3) GUI.

1.4 Device Information

• TAC5412-Q1, a low-power, high-performance, stereo audio codec with integrated programmable boost, mic

bias, and diagnostics.

• TAC5411-Q1, a low-power, high-performance, mono audio codec with integrated programmable boost, mic

bias, and diagnostics.

• TAC5312-Q1, a low-power stereo audio codec with integrated programmable boost, mic bias, and

diagnostics.

• TAC5311-Q1, a low-power mono audio codec with integrated programmable boost, mic bias, and diagnostics.

• TAA5412-Q1, a low-power, high-performance, stereo audio ADC with integrated programmable boost, mic

bias, and diagnostics.

2 Hardware Overview

The evaluation kit consists of the TAx5x1XQ15B5EVM daughterboard and the AC-MB controller board. The

controller board provides the evaluation module power, control, and digital audio signals. The daughterboard

contains the TAx5x12-Q1 device and the input and output connections. Some components are not populated in

the EVM depending on the selected device.

USB Power

Selection

+5 V

USB Data

USB Vbus

S/PDIF Out

S/PDIF IN

VINL/R

SPI

I2C

XMOS ASI

9211 ASI

External

Power

+5-V Input

Level

Translator

Buffer

Mux AC-MB ASI EVM ASI

+3.3 V

+1.8 V

+1 V

Power-On Reset

JTAG

IOVDD

Selection

IOVDD

/POR

/RESET_SW

/RESET

AC_MB_EVM_Connector

IOVDD

+5 V

MCLK

BCLK

FSYNC

DIN 1-4

DOUT 1-4

SDA

SCL

MISO

MOSI

SCLK

/SS 1-2

/RESET

GPI 1-2

GPO 1-2

GPIO

XMOS

Interface

PCM9211

Interface

Optical Input

Optical Output

Analog Input

USB

XTAG

Power-On Reset

TAC5XXX

5x5

IC ASI

GPIO1

IC I2C

LDO

+3.3 V

BOOST VBATIN

VBAT

Selection

DIAGNOSTIC

INPUT

SELECTION

INX

+5 V

IOVDD

+1.2 V

AVDD

Selection

+1.8 V

BSTVDD

Selection

AVDD +3.3 V

AC_MB EVM

Power Rails

Main

Rest

External ASI

Connector

Digital Audio

Selection Switch

I2C and SPI

Test Points

AUDIO INPUT

CONNECTION

AUDIO OUTPUT

CONNECTION

HEADER

VBAT

IOVDD

AVDD

BSTVDD

OUTX

GPOXA

HEADER HEADER

I2S

Selection

EXT-AP

DIGMIC

HEADER

GPIO1

Figure 2-1. TAx5x1xQ1 EVM Block Diagram

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TAx5x1xQ15B5EVM-K Evaluation Module 3

2.1 AC-MB Settings

2.1.1 Audio Serial Interface Settings

The AC-MB provides the digital audio signals to the evaluation module (EVM) from the universal serial bus

(USB), optical jack, stereo audio jack, and external audio serial interface (ASI) header. Figure 2-2 shows a block

diagram of the ASI routing on the AC-MB.

Figure 2-2. AC-MB Audio Interface Block Diagram

The SW2 switch on the AC-MB selects the audio serial bus that interfaces with the PCM6xx0EVM. Next to the

SW2 switch, the AC-MB has a quick reference table to identify the audio serial interface source options and

switch settings. The AC-MB acts as the controller for the audio serial interface. The AC-MB has three different

modes of operation: USB, optical or analog, or external ASI.

The serial interface clocks and data are provided from the USB interface. The USB audio class driver on the

operating system determines the sampling rate and format. The default settings for the USB audio interface

are 32-bit frame size, 48-kHz sampling rate, BCLK and FSYNC ratio of 256, and the format is time-division

multiplexing (TDM).

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2.1.1.1 USB Mode

The OS detects the AC-MB as an audio device named TI USB Audio UAC2.0. Figure 2-3 shows the AC-MB

audio setting for the USB mode of operation.

Figure 2-3. AC-MB USB Audio Setting

2.1.1.2 Optical or Auxiliary Analog Audio Input Mode

Serial interface signals are provided from the PCM9211 digital transceiver, which is capable of sending digital

data to the EVM from an analog input or optical input. Meanwhile, the data from the EVM can be streamed

through the optical output.

Figure 2-4 shows the AC-MB audio setting for the optical and analog mode of operation.

Figure 2-4. AC-MB Optical or Auxiliary Analog Audio Input Setting

The optical output of the AC-MB streams the data captured on the EVM with the format determined by the input

source used. When there is an optical input connected, the LOCK LED must be ON. The PCM9211 streams

the audio serial interface clocks with the format determined by the optical input frame. The digital data from

the optical input is streamed to the EVM. If the optical input is not connected, the PCM9211 captures the input

signal provided through the analog input, and streams the signal to the EVM. This feature can be useful when

a digital input digital-to-analog converter (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.

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TAx5x1xQ15B5EVM-K Evaluation Module 5

2.1.1.3 External Audio Interface Mode

In this mode, the audio serial interface clocks for the evaluation board are provided through connector J7 from

an external source. This architecture allows an external system to communicate with the evaluation board,

such as a different host processor or test equipment (Audio Precision™). The clocks generated from the USB

interface and PCM9211 are isolated with this setting. Figure 2-5 shows the AC-MB audio setting for the external

mode of operation.

Figure 2-5. AC-MB External Audio Interface Setting

Figure 2-6 shows how to connect the external audio interface. Odd-numbered pins are signal-carrying; even-

numbered pins are connected to ground.

Figure 2-6. AC-MB Connection with External Audio Serial Interface

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2.1.2 AC-MB Power Supply

A single 5-V power supply powers the complete evaluation module system. However, the motherboard has

different low-dropout regulators (LDOs) integrated that provide the required power supply to the different blocks

of the board. Figure 2-7 shows a block diagram depicting the power structure of the AC-MB.

USB Power

Selection

+5 V

USB Vbus

External

Power

+5-V Input

+3.3 V

+1.8 V

+1 V

Power-On Reset

IOVDD

Selection

IOVDD IOVDD

+5 V

USB

+1.2 V

Power Rails

TO EVM

J9 J3

Figure 2-7. Power-Supply Distribution of the AC-MB

The AC-MB can be powered from the host computer 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 provided to the EVM is generated on the motherboard from the main power supply (USB or

external).

The voltage levels available are 1.2 V, 1.8 V, and 3.3 V and can be selected via the J9 and J3 IOVDD header.

For 1.2-V operation, short pin 1 of header J9 and pin 2 of header J3; for 1.8-V operation, short pins 2 and 3 of

header J3; for 3.3-V operation, short pins 1 and 2 of header J3. The green POWER LED (D3) turns ON when the

motherboard is fully powered and the power supplies from the onboard LDOs are correct. The USB READY LED

indicates a successful USB communication between the AC-MB and the host computer.

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2.2 TAx5x1xQ1EVM-K Hardware Settings

2.2.1 TAx5x1x-Q1 EVM Input Hardware Settings

The TAx5x1x-Q1 evaluation module has several input configuration options. The EVM allows the user to

evaluate the device across multiple operation modes. The different operation modes are highlighted in this

section.

Figure 2-8. TAx5x12-Q1 EVM Input Architecture for Channel 1 and 2

The IN1 and IN2 input architecture allows these two channels to be quickly configured to support any of the

supported operation modes. The INxP and INxM pins of the TAx5x1x-Q1 can optionally connect to onboard

microphones for quick evaluation of a microphone in AC or DC-coupled modes. Jumper configuration details can

be found in Table 2-1.

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For TAC5x11-Q1 evaluation module, the DIN1P and DIN1M can be connected to IN1P and IN1M respectively

through jumper J63 and J64 as shown in Figure 2-9. Only IN1 Input Terminal is applicable in this evaluation

module from the configuration table below.

Figure 2-9. TAC5x11-Q1 EVM Input Architecture for Channel 1 and DIN1P/M

Table 2-1. Input Jumper Configuration

Input Terminal Input Mode Installed

Jumpers

Uninstalled

Jumpers

Input Swing Topology Register Setting

IN1 LINE-IN

Differential, AC-

coupled

J8, J20, J21 J4, J5, J6, J11,

J12, J15, J16

10 VRMS B0_P0_R80,

B0_P1_R115

LINE-IN Single-

ended, AC-

coupled

J6, J8, J12 (2-3),

J20, J21

J4, J5, J11, J15,

J16

5 VRMS B0_P0_R80,

B0_P1_R115

LINE-IN

Differential, DC-

coupled

J15, J16 J4, J5, J6, J11,

J12, J20, J21,

J8 (DUT MICBIAS

is not used)

10 VRMS B0_P0_R80

LINE-IN Single-

ended, DC-

coupled

J6, J12 (2-3), J15,

J16

J4, J5, J11, J20,

J21, J8 (DUT

MICBIAS is not

used)

5 VRMS B0_P0_R80

On-board Electret

Condenser

Microphone

(ECM) Differential,

AC-coupled

J4, J5, J8, J11,

J12 (1-2), J20, J21

J6, J15, J16 Refer to

Microphone data

sheet

B0_P0_R80,

B0_P1_R115

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TAx5x1xQ15B5EVM-K Evaluation Module 9

Table 2-1. Input Jumper Configuration (continued)

Input Terminal Input Mode Installed

Jumpers

Uninstalled

Jumpers

Input Swing Topology Register Setting

On-board Electret

Condenser

Microphone

(ECM) Single-

ended, AC-

coupled

J4, J5, J8, J11,

J12 (2-3), J20

J6, J15, J16, J21 Refer to

Microphone data

sheet

B0_P0_R80,

B0_P1_R115

On-board Electret

Condenser

Microphone

(ECM) Differential,

DC-coupled

J4, J5, J8, J11,

J12 (1-2), J15, J16

J6, J20, J21 Refer to

Microphone data

sheet

B0_P0_R80,

B0_P1_R115

On-board Electret

Condenser

Microphone

(ECM) Single-

ended, DC-

coupled

J4, J5, J8, J11,

J12 (2-3), J15, J16

J6, J20, J21 Refer to

Microphone data

sheet

B0_P0_R80,

B0_P1_R115

IN2 LINE-IN

Differential, AC-

coupled

J8, J22, J23 J7, J9, J13, J14,

J17, J18, J53

10 VRMS B0_P0_R85,

B0_P1_R115

LINE-IN Single-

ended, AC-

coupled

J7, J8, J14 (2-3),

J22, J23

J9, J13, J17, J18,

J53

5 VRMS B0_P0_R85,

B0_P1_R115

LINE-IN

Differential, DC-

coupled

J17, J18 J7, J9, J13, J14,

J22, J23, J53, J8

(DUT MICBIAS is

not used)

10 VRMS B0_P0_R85

LINE-IN Single-

ended, DC-

coupled

J7, J14 (2-3), J17,

J18

J9, J13, J22, J23,

J53, J8 (DUT

MICBIAS is not

used)

5 VRMS B0_P0_R85

On-board

Analog MEMS

microphone, AC-

coupled

J8, J9, J22, J23,

J53

J7, J13, J14, J17,

J18

Refer to the

Microphone data

sheet.

B0_P0_R85,

B0_P1_R115

On-board

Analog MEMS

microphone, DC-

coupled

J9, J17, J18, J53 J7, J13, J14, J22,

J23, J8 (DUT

MICBIAS is not

used)

Refer to the

Microphone data

sheet.

B0_P0_R85,

B0_P1_R115

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