Cirrus Logic CDB43198-GBK User Manual

CDB43198-GBK
CDB43198-GBK Kit Manual
http://www.cirrus.com
Copyright © 2018 Cirrus Logic, Inc. and
Cirrus Logic International Semiconductor Ltd.
All rights reserved.
DS1156DB1
AUG '18
Features
• Configurable serial audio headers for PCM, DSD and DoP audio
• Headphone and line outputs
• Analog and S/PDIF audio input
• USB audio module capability
• WISCE™ I
2
C-based software control
• Windows® compatible
Description
The CDB43198-GBK is a dedicated platform for testing and evaluating the CS43198. The CS43198 is a high-performance
audio DAC with integrated impedance detection and headphone drivers. To allow comprehensive testing and evaluation
of the performance of the CS43198, extensive software-configurable options are available through the CDB43198
evaluation kit. The kit also included the CDB-HDR-MEAS, for measuring the 130 dB dynamic range performance of the
CS43198.
Software options, such as register settings for the CS43198, are configured via the WISCE software tool, which
communicates with the CDB43198-GBK via an Aardvark I
2
C/SPI host adapter from a Windows computer, or via Mini-USB
cable.
Figure 1 CDB43198 Board Block Diagram

Cirrus Logic CDB43198-GBK Specifications

General

Manufacturer	Cirrus Logic
Model	CDB43198-GBK
Interface	I2S, SPI
Supply Voltage	3.3 V
Resolution	24-bit
Operating Temperature	-40°C to +85°C
Sample Rate	32 kHz to 192 kHz
Power Supply	3.3 V

Summary

CDB43198-GBK Kit Overview

CDB43198 Base Board Overview

Overview of the CDB43198 base evaluation board.

CDB-HDR-MEAS Board Description

Description of the CDB-HDR-MEAS board for high dynamic range measurements.

CDB43198 Board Overview

CDB43198 Power Supply Details

Details the power supply architecture and options for the CDB43198 board.

Digital Audio Input Interfaces

Explains the serial audio I/O headers (ASP, XSP) and S/PDIF receiver.

Analog Audio Output Jacks

Describes the headphone and XLR output jacks on the CDB43198 board.

OPA1622 Headphone Amplifier

Details the OPA1622 op-amp used for driving headphone loads.

I2C Control Interface

Explains the I2C interface for controlling devices on the board.

Status LED Indicators

Describes the status LEDs indicating power rails and S/PDIF input.

Headers and Jumper Settings

Comprehensive list of board headers, jacks, plugs, and jumper settings.

Codec MCLK Source Selection

How to select the MCLK source for the smart codec.

Onboard Clock Sources

Details the onboard crystals and external clock options for MCLK.

Board Control Register Quick Reference

CDB43198 IO EXP Registers

Descriptions of the IO Expander registers for controlling board functions.

CDB-HDR-MEAS High Dynamic Range Measurement Preamplifier

Powering the CDB-HDR-MEAS Board

Requirements for powering the CDB-HDR-MEAS with a triple-output DC supply.

CDB-HDR-MEAS Functionality

Explains how the preamplifier improves measurement accuracy for DNR.

Testing the CS43198 using WISCE

Launching WISCE Software

Steps to launch the WISCE evaluation and configuration software.

Loading CDB43198 Board Panel and Register Map

How to load the board panel and register map for the TCA6424 IO Expander.

Loading CS43198 Plugins and Register Map

Loading CS43198 device plugins and register maps in WISCE.

Initializing CDB43198 Board Devices

Steps to initialize the CS43198 devices using the CDB_INIT script.

CS43198 Plugin Configuration Tabs

Overview of the different tabs within the CS43198 plugin for configuration.

Testing Various Use cases

Data Flow Diagrams for Common Use Cases

Depicts data flow for PCM and DSD playback use cases.

Test Program Setup and Procedures

Covers test setup, APx configuration, and measurement steps for DNR/THD+N.

CS43198 Measured Performance Results

Presents measured THD+N and Dynamic Range (DNR) results.