Texas Instruments TA 5 1-Q1 Series User manual

EVM User's Guide: TAC5412Q14B4EVM-K TAC5311Q14B4EVM-K
TAA5412Q14B4EVM-K EVM
TAx5x1x-Q1 Family Evaluation Module
Description
The TAx5x1xQ14B4EVM-K evaluation module (EVM)
allows the user to test the capabilities of Texas
Instruments’ TAC5412-Q1 a stereo high-performance
Codec, TAC5311-Q1 a mono Codec or TAA5412 a
stereo high-performance ADC. The evaluation module
is paired with the AC-MB, a flexible motherboard
which provides power, control and digital audio data
to the evaluation module.
Get Started
1. Order the EVM from TAx5x1x product folder.
2. Download the latest TAx5x1x data sheet.
3. Request access and download PPC3 GUI from
TAx5x1x product folder.
Features
• Complete evaluation kit for the TAC5412-Q1,
a stereo high-performance Codec, TAC5311-Q1
a mono Codec or TAA5412 a stereo high-
performance 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 call- e-call
•Telematics control unit
•Automotive active noise cancellation
•Automotive head units
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1 Evaluation Module Overview
1.1 Introduction
This user's guide describes the functionality of TAC5412Q14B4EVM-K, TAC5311Q14B4EVM-K and
TAA5412Q14B4EVM-K EVM evaluation kit.
The TAx5x1xQ14B4EVM is an evaluation module (EVM) designed to demonstrate the performance and
functionality of the TAx5x1xQ1 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
1.2 Kit Contents
• TAC5412-Q1, TAC5311-Q1 or TAA5412-Q1 device
• TAx5x1XQ14B4 EVM/daughterboard
• AC-MB Controller/motherboard
1.3 Specification
The TAx5x1xQ14B4EVM evaluation module (EVM) paired with the AC-MB, a flexible motherboard which
provides power, control and digital audio data to the evaluation module allows user to record and playback
audio signal. The configuration for the TAC5412-Q1, TAC5311-Q1 or TAA5412-Q1 device 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,
micbias and diagnostics.
• TAC5411-Q1: a low power, high performance, Mono Audio Codec with integrated programmable boost,
micbias and diagnostics.
• TAC5312-Q1: a low power Stereo Audio Codec with integrated programmable boost, micbias and
diagnostics.
• TAC5311-Q1: a low power Mono Audio Codec with integrated programmable boost, micbias and diagnostics.
• TAA5412: a low power high performance Stereo Audio ADC with integrated programmable boost, micbias
and diagnostics.
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2 Hardware
2.1 Hardware Overview
The evaluation kit consists of the TAx5x1xQ14B4EVM daughterboard and the AC-MB controller board. The
controller board is used to provide power, control, and digital audio signals to the evaluation module. The
daughterboard contains the TAx5x1x-Q1 device and the input output connections. Depending on the selected
device, some components are not populated in the EVM.
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
4x4
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
DIN2
DOUT2
Figure 2-1. TAx5x1xQ1 EVM Block Diagram
2.2 AC-MB Settings
2.2.1 Audio Serial Interface Settings
The AC-MB provides the digital audio signals to the evaluation module 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
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Switch SW2 on the AC-MB selects the audio serial bus that interfaces with the PCM6xx0EVM. Next to switch
SW2, 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, with 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 sampling rate and format are
determined by the USB audio class driver on the operating system. The default settings for the USB audio
interface are 32-bit frame size, 48-kHz sampling rate, BCLK and FSYNC ratio is 256, and the format is time
division multiplexing (TDM).
2.2.1.1 USB Mode
The AC-MB is detected by the OS as an audio device with the name 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
2.2.1.2 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, and 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 evaluation module. If the optical input is not connected, then 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 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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2.2.1.3 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 be used for communication 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, and even
numbered pins are connected to ground.
Figure 2-6. AC-MB Connection with External Audio Serial Interface
2.2.2 AC-MB Power Supply
The complete EVM system is powered from a single 5-V power supply. However, the motherboard has different
low-dropout regulators (LDOs) integrated that provide the required power supplies 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
J4
J1
J5
Figure 2-7. Power-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
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for the digital signals that is provided to the evaluation module 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.
2.3 TAx5x1xQ1EVM-K Hardware Settings
2.3.1 TAx5412-Q1 EVM Input Hardware Settings
The TAx5412-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. TAC5412Q1/TAC5312Q1/TAA5412Q1 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 TAx5412-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 Figure 2-9.
For TAC5x11-Q1 evaluation module, The DIN1P and DIN1M can be connected to IN1P and IN1M respectively
through jumper J52 and J53 as shown in Figure 2-8. Only IN1 Input Terminal is applicable in this evaluation
module from the configuration table.
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Figure 2-9. TAC5311-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
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
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
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Table 2-1. Input Jumper Configuration (continued)
Input Terminal Input Mode Installed
Jumpers
Uninstalled
Jumpers Input Swing Topology Register
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, J46
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,
J46
5 VRMS B0_P0_R85,
B0_P1_R115
LINE-IN
Differential, DC-
coupled
J17, J18 J7, J9, J13, J14,
J22, J23, J46, 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,
J46, J8 (DUT
MICBIAS is not
used)
5 VRMS B0_P0_R85
On-board
Analog MEMS
microphone, AC-
coupled
J8, J9, J22, J23,
J46
J7, J13, J14, J17,
J18
Refer to
Microphone data
sheet
B0_P0_R85,
B0_P1_R115
On-board
Analog MEMS
microphone, DC-
coupled
J9, J17, J18, J46 J7, J13, J14, J22,
J23, J8 (DUT
MICBIAS is not
used)
Refer to
Microphone data
sheet
B0_P0_R85,
B0_P1_R115
2.3.1.1 Line Inputs
For the line input configuration shown in Figure 2-10, the TAx5x1x-Q1 captures the audio signal provided
through RCA terminals J2 (IN1), J3 (IN2) or header J47 or J48. The RCA white connector is connected to the
INxP and RCA red connector is connected to the INxM. Depending on differential or single-ended configuration,
populate J6 or J7 jumper as described in Table 2-1 accordingly. The input accepted in this mode is a differential
10-VRMS full-scale audio signal. If a single-ended source is used, the 5-VRMS signal is supported. The gang
potentiometer R43 and R44 provide the input bias resistors for this AC-Coupled input mode depending on the
desired input swing and impedance.
Using the TAx5x1x-Q1 AC-Coupled external resistor calculator, enter the maximum input level and the desired
MICBIAS voltage to determine the resistance required to achieve full input swing as shown in Figure 2-10.
From the calculator example below, the maximum resistance allowed is 2399.4 Ohm and the closest standard
resistance is 2375 Ohm. Based on this standard value resistance, the effective impedance looking into the
device is about 2184 Ohm. This effective input impedance forms a high pass filter with the external capacitor.
The Vcm is the common voltage for the respective MICBIAS and Input Swing. One can adjust the R50 and
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R51 potentiometer to get the common mode voltage (Vcm). By default, the EVM Vcm is set to 7.3V with 8 V
MICBIAS.
Figure 2-10. AC-Coupled External Resistor Calculator
2.3.1.2 On-board Microphone Input
For the on-board microphone input configuration shown in Figure 2-8, the TAx5x1x-Q1 records the audio
captured from MK1 (ECM) or U5 (Analog MEMS) microphones. For U5, the audio port is located at the bottom
of the board. Electret Microphone (MK1) is connected to IN1P/M and MICBIAS is used to power the on-board
microphone, so header J8 must be installed. The MEMS microphone (U5) can be configured as a single-ended
or differential input and connected to IN2P/M. There must not be any connections to J2 or J3 while the on-board
microphone is used to preserve the performance of the microphone. There is a possibility that gain adjustment is
needed in the device depending on the microphone sensitivity.
2.3.2 TAC541x-Q1 EVM Output Hardware Settings
The TAx541x-Q1 evaluation module has several output configuration options and offers flexibility to allow the
user to evaluate the device with different load conditions and configurations. The different configurations are
highlighted in this section.
The EVM analog audio output port provides option for AC/DC-Coupled and filter or filter-less paths for easy
evaluation. By default the filter conponents are not populated.
Switch SW1 allows users to select respective loads for each output pair for 16 Ohm, 604 Ohm or 10K Ohm if
needed. These resistors are for quick evaluation and can be bypassed for actual load. SW1 and the output RCA
connectors are located on the top left hand side shown in Figure 2-11.
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Figure 2-11. TAC5412-Q1/TAC5312-Q1 EVM Output Architecture for Channel 1 and 2
OUT1 and OUT2 audio output pins have connection options with external load or the on-board load selections.
A pair of RCA connectors, white from OUTP and red from OUTM, allow users to connect to external device as
differential or single ended. Jumper header J36 or J37 must be populated if single-ended is desired or removed
otherwise for differential configuration.
Table 2-2. SW1 Pin
SW1 pin Load Configuration Resistor Rating Output Module
Register Setting
1, 4, 7, 10 16 Ω 0.5 W B0_P0_R101
2, 5, 8, 11 604 Ω 0.125 W B0_P0_R101
3, 6, 9, 12 10 kΩ 0.4 W B0_P0_R101
Figure 2-12. TAC5412-Q1 Analog Output Connections
For TAC5x11-Q1, OUT2 components are not populated.
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