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NAU88C22 Demo Board User Manual
NAU88C22 Demo Board
User Manual
The PCB name: EVB-NAU88C22YG_V1.0
Ordering P/N: NL-NAU88C22
The information described in this document is the exclusive intellectual property of
Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton.
Nuvoton is providing this document only for reference purposes of microcontroller based system design.
Nuvoton assumes no responsibility for errors or omissions.
All data and specifications are subject to change without notice.
For additional information or questions, please contact: Nuvoton Technology Corporation.
www.nuvoton.com
MAY. 25, 2021
Page 1 of 21
Rev1.0
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Summary of Contents for Nuvoton NAU88C22
- Page 1 The information described in this document is the exclusive intellectual property of Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton. Nuvoton is providing this document only for reference purposes of microcontroller based system design. Nuvoton assumes no responsibility for errors or omissions.
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Page 2: Table Of Contents
NAU88C22 Demo Board User Manual TABLE OF CONTENTS OVERVIEW ................5 INTRODUCTION ................6 Top View ..................7 Input / Output .................. 8 Jumpers ..................10 Schematic ..................15 Bare Board ................... 17 CONNECTED TO AUDIO CONTROL BOARD ........18 APPLICATION ................ - Page 3 NAU88C22 Demo Board User Manual List of Figure Figure 2-1 NAU88C22 Demo Board ..............6 Figure 2.1-1 Top View ................... 7 Figure 2.2-1 Input / Output ..................8 Figure 2.3-1 Jumpers ..................10 Figure 2.4-1 Schematic (page 1) ................. 15 Figure 2.4-2 Schematic (page 2) .................
- Page 4 NAU88C22 Demo Board User Manual List of Tables Table 2.1-1 Main Components ................7 Table 2.2-1 Input / Output ..................9 Table 2.3-1 Jumpers ................... 14 MAY. 25, 2021 Page 4 of 21 Rev1.0...
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Page 5: Overview
NAU88C22 Demo Board User Manual OVERVIEW The NAU88C22 is a low power, high quality CODEC for portable and general purpose audio applications. In addition to precision 24-bit stereo ADCs and DACs, this device integrates a broad range of additional functions to simplify implementation of complete audio system solutions. The... -
Page 6: Introduction
NAU88C22 Demo Board User Manual INTRODUCTION The NAU88C22 Demo Board is designed to allow a thorough evaluation of the audio codec. Figure 2-1 NAU88C22 Demo Board MAY. 25, 2021 Page 6 of 21 Rev1.0... -
Page 7: Top View
NAU88C22 Demo Board User Manual Top View Figure 2.1-1 Top View Name Description NAU88C22YG Audio CODEC Table 2.1-1 Main Components MAY. 25, 2021 Page 7 of 21 Rev1.0... -
Page 8: Input / Output
NAU88C22 Demo Board User Manual Input / Output Figure 2.2-1 Input / Output MAY. 25, 2021 Page 8 of 21 Rev1.0... - Page 9 NAU88C22 Demo Board User Manual Name Description Pin 1 MCLK, Master Clock Pin 11 I2C Interface Pin 3 BCLK, Bit Clock Pin 13 Pin 5 I2S Interface DACIN Pin15 VDDIO J_CB Power. Pin 7 ADCOUT Pin 17 VDD1.8 Provide power...
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Page 10: Jumpers
NAU88C22 Demo Board User Manual Jumpers Figure 2.3-1 Jumpers MAY. 25, 2021 Page 10 of 21 Rev1.0... - Page 11 NAU88C22 Demo Board User Manual Name Pin definition Description VDDB and VDDC JP_VDDBC voltage selection Short 1-2 (default) VDDBC uses VDDBC uses VDDBC voltage of 3.3V voltage of 3.3V Speaker power JP_VDDSPK supply voltage selection Short 1-2 (default) VDDSPK uses...
- Page 12 NAU88C22 Demo Board User Manual Short (default) Open Can use external signal Pin 1-2 MCLK to connect to pin1 Can use external signal Pin 3-4 BCLK to connect to pin3 Can use external signal Pin 5-6 SDI to connect to pin5...
- Page 13 NAU88C22 Demo Board User Manual JP_LMICP Left Mic channel source selection Short Open (default) JP_LMICP MIC input Differential intput JP_LMICN Short 1-2 Short 2-3 Open (default) JP_LMICN Sing-end input MIC input Differential intput JP_RMICP Right Mic channel source selection Short...
- Page 14 NAU88C22 Demo Board User Manual Control interface JP_MODE selection Short (default) Open Using power from Can use external power VDDA JP_I2S_CB to connect to pin2 Table 2.3-1 Jumpers MAY. 25, 2021 Page 14 of 21 Rev1.0...
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Page 15: Schematic
NAU88C22 Demo Board User Manual Schematic Figure 2.4-1 Schematic (page 1) MAY. 25, 2021 Page 15 of 21 Rev1.0... -
Page 16: Figure 2.4-2 Schematic
NAU88C22 Demo Board User Manual Figure 2.4-2 Schematic (page 2) MAY. 25, 2021 Page 16 of 21 Rev1.0... -
Page 17: Bare Board
NAU88C22 Demo Board User Manual Bare Board Figure 2.5-1 Top View of Bare Board MAY. 25, 2021 Page 17 of 21 Rev1.0... -
Page 18: Connected To Audio Control Board
If there is Nuvoton's Audio Control Board, NAU88C22 Demo Board can be used with Audio Control Board (USB_I2C_I2S_Control_Board_V1.1). When the Audio Control Board is connected to the NAU88C22 Demo Board, the PC or USB host can use the GUI to control the NAU88C22 Demo Board and know the status of the NAU88C22 Demo Board. -
Page 19: Application
NAU88C22 Demo Board User Manual APPLICATION 4-1 SPI 3-wire a. JP_MODE 2-3 short 4-wire a. JP_MODE 2-3 short b. JP_GPIO3 1-2 short (for 4-wire SPI) c. JP_RLIN/GPIO3 NC (for 4-wire SPI) 4-2 RMICP and RMICN Differential input a. JP_RMICN NC b. - Page 20 NAU88C22 Demo Board User Manual MIC input a. JP_LMICN 2-3 short b. JP_LMICP 1-2 short 4-4 Line level input a. JP_LLIN/GPIO2 1-2 short b. JP_RLIN/GPIO3 1-2 short 4-5 MCLK MCLK from control board a. JP_OSC NC b. JP_I2S_CB 1-2 short External MCLK a.
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Page 21: Revision History
Important Notice Nuvoton Products are neither intended nor warranted for usage in systems or equipment, any malfunction or failure of which may cause loss of human life, bodily injury or severe property damage. Such applications are deemed, “Insecure Usage”.
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