AKM AKD7756-HF User Manual

Browse online or download User Manual for Motor vehicle electronics AKM AKD7756-HF. AK7756-Hands Free Evaluation Board Manual

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[AKD7756-HF]
<KM101400> 2010/06
- 1 -
GENERAL DESCRIPTION
AKD7756-HF is a Hands-free evaluation kit for the AK7756 which is an audio processor with PCM
interface, EEPROM interface, mono voice audio CODEC and microphone pre-amplifier. A speaker
amplifier is integrated in this evaluation kit for easy evaluation of Hands-free function by connecting
external microphones and speaker units. It is possible to access to the AKD7756-HF via USB interface,
and adjustment of voice quality and noise attenuation level can be made with Windows GUI applications.
An external Flash Memory for DSP programming is integrated into this kit enabling a stand-alone
operation. In addition, an easy connection to a mobile phone is provided by integrated Blue Tooth module
for evaluations.
Ordering guide
AKD7756-HF
AK7756 Hands Free System (HFS) Box
USB Control Adapter
Monitoring Board
AD-DC Converter for main power supply
Control Soft
FUNCTION
Write/Read access to PRAM, CRAM, OFREG and control registers of AK7756
In/Output Ports: MIC-IN/SPK-OUT/S-AMPOUT/TEL-IN/TEL-OUT
Flash Memory (EEPROM) for parameter storage and stand-alone operation
Blue-Tooth transceiver
Monitor Board
AKD7756-HFS
BT-Transceiver
AK
7756
AK
2300
Xilinx
EEPRO
Wireless
Wired
Control Box
PC
AK7835
AK7756 Hands Free Evaluation Rev.0
AKD7756-HF
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Summary of Contents

Page 1 - AKD7756-HF

[AKD7756-HF] <KM101400> 2010/06 - 1 - GENERAL DESCRIPTION AKD7756-HF is a Hands-free evaluation kit for the AK7756 which is an audi

Page 2 - ■ Main Board

[AKD7756-HF] <KM101400> 2010/06 - 10 - Noise Canceller The noise canceller sets optional noise attenuation for 6 divided voice b

Page 3 - ■ Description

[AKD7756-HF] <KM101400> 2010/06 - 11 - With GUI, it is possible to make adjustment of 8 CRAM parameters simultaneously in RUN state.

Page 4 -

[AKD7756-HF] <KM101400> 2010/06 - 12 - REVISION HISTORY IMPORTANT NOTICE z These products and their specifica

Page 5

5544332211D DC CB BA ATitleSize Document Number RevDate: Sheetof1.0A419Thursday, November 19, 2009TitleSize Document Number RevDate: Sheetof1.0A419Thu

Page 6 - CONTROL SOFTWARE MANUAL

5544332211D DC CB BA AAOUTIRSTNJX1INP-AINLRCKBICKSDIN1SDO-SPDIFSTO/SDO-LEDEXTEEP/CSNJX0SDOUT1SCLSDA/SOSII2CSELAVDDDVDD VDD+1.8VTitleSize Document Numb

Page 7 - ■ Control Software Functions

5544332211D DC CB BA AAMP-BIAS1AMP-BIAS1AINAOUTEX-INEX-OUTVCC+8VVCC+12VTitleSize Document Number RevDate: Sheetof1.0A339Thursday, November 19, 2009Tit

Page 8 - ■ Parametric Equalizers

5544332211D DC CB BA ABT-SDOBT-SDOBT-LRCKBT-LRCKBT-LEDBT-BICKBT-BICKBT-HOOKBT-SDIBT-RESETBT-SDIBT-SDOBT-LRCKBT-BICKBT-SDIBT-RESETBT-HOOKBT-LEDVDD+3VTi

Page 9

5544332211D DC CB BA AGST2300-SDI2300-BICK2300-SDO2300-LRCK2300-EX-OUT2300-EX-IN2300-DIF02300-DIF1AVDDAVDDTitleSize Document Number RevDate: Sheetof1.

Page 10 - ■ Parameter Adjustment

5544332211D DC CB BA AEEP-SCLEEP-SDAEEP-WEDVDDTitleSize Document Number RevDate: Sheetof1.0A69Friday, October 30, 2009TitleSize Document Number RevDat

Page 11

5544332211D DC CB BA AAVDDVDD+3VVDD+1.8VDVDDVCC+12VVCC+8VTitleSize Document Number RevDate: Sheetof1.0A379Thursday, November 19, 2009TitleSize Documen

Page 12 - REVISION HISTORY

[AKD7756-HF] <KM101400> 2010/06 - 2 - BOARD DIAGRAM Front Panel (1) (2) (3)

Page 13

5544332211D DC CB BA ASPK-GNDINNSPK-GND7835INNVDD+5VVDD+5VVCC+12VTitleSize Document Number RevDate: SheetofSPK-AMP1.0AK7756-HFA489Friday, April 02, 20

Page 14

5544332211D DC CB BA AFRONT-HOOKFRONT-BT-RSTFRONT-JX0FRONT-JX1MON-LRCKOTCKTDITDOTMSMON-BICKOMON-SDO-SPDIFSDA-CTRLTCKTDOTDITMSMON-SDOLEDRESET-CTRLHOST-

Page 15

[AKD7756-HF] <KM101400> 2010/06 - 3 - Description No. Name Function (1) CONTROL PORT This port is used when the control code is

Page 16 - BT-CONECT

[AKD7756-HF] <KM101400> 2010/06 - 4 - I/O ports of the AK7756 are used when an external Bluetooth module is in master mode. Pin# Name

Page 17

[AKD7756-HF] <KM101400> 2010/06 - 5 - Evaluation Mode (Bluetooth mode) Front panel, DIP-SW2: Set to “H”. 1. Bluetooth Mode (with

Page 18

[AKD7756-HF] <KM101400> 2010/06 - 6 - CONTROL SOFTWARE MANUAL Evaluation Board and Control Software Set-up 1) Connect the AKD7756

Page 19

[AKD7756-HF] <KM101400> 2010/06 - 7 - Control Software Functions 1. Code Downloading There are three code areas in the AK7756 as

Page 20 - S-AMPOUT

[AKD7756-HF] <KM101400> 2010/06 - 8 - Parametric Equalizers The parametric equalizers as follows are included in HF code. Name Fu

Page 21 - XCONTROL

[AKD7756-HF] <KM101400> 2010/06 - 9 - 8 bands adjustments can be made in RUN state by GUI. Figure 5. Control S/W [PEQ] tab screen

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