Semiconductor MSM6722 DEMO BOARD Semiconductor MSM6722 Demonstrat

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Semiconductor MSM6722 DEMO BOARD Semiconductor MSM6722 Demonstrat

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E2D0077-39-21
Semiconductor MSM6722 DEMO BOARD
Semiconductor MSM6722 Demonstration Board
This version: Feb. 1999 MSM6722 DEMO BOARD Previous version: 1997
BOARD DESIGN
POWER Microphone jack Potentiometer speaker Output
Amplifier speaker
MSM6722
Input
MSC1157 UP/DW Speaker jack
INITIALIZATION
Insert microphone into microphone jack. Insert speaker into speaker jack.
SWITCHES
Main power switch. Reset switch. Pressing switch initializes LSI. THR/CHG switch. Placing switch position outputs voice incurring interval translation. Placing switch position outputs voice incurring interval translation. Mode selection switch. Placing switch position sets binary mode. Placing switch UP/DW position sets up/down mode. switch. Used binary mode change intervals. Incremental/decremental switches. incremental/decremental mode, switches allow interval changed. Pressing switches concurrently enables interval step reset.
Semiconductor
CIRCUIT DIAGRAM
UP/DW Power supply 0.02 Output MSM6722 (P3) UP.C (P2) DW.C (P1) PRST (P0) THR/CHG TEST AOUT ADIN FOUT AVDD DVDD RESET DGND AGND MOUT LOUT
4MHz
HC157
0.47 Mike jack
STBY
MSC1157
Input pins)
MSM6722 DEMO BOARD
0.02 Speaker jack
I0D1
Semiconductor
MSM6722 DEMO BOARD
PATTERN LAYOUT
Silk Screen
(Unit:
Semiconductor
MSM6722 DEMO BOARD
Mounting Side
Semiconductor
MSM6722 DEMO BOARD
Solder Side
E2Y0002-29-11
NOTICE
information contained herein change without notice owing product and/or technical improvements. Before using product, please make sure that information being referred up-to-date. outline action examples application circuits described herein have been chosen explanation standard action performance product. When planning product, please ensure that external conditions reflected actual circuit, assembly, program designs. When designing your product, please product below specified maximum ratings within specified operating ranges including, limited operating voltage, power dissipation, operating temperature. assumes responsibility liability whatsoever failure unusual unexpected operation resulting from misuse, neglect, improper installation, repair, alteration accident, improper handling, unusual physical electrical stress including, limited exposure parameters beyond specified maximum ratings operation outside specified operating range. Neither indemnity against license third party's industrial intellectual property right, etc. granted connection with product and/or information drawings contained herein. responsibility assumed infringement third party's right which result from thereof. products listed this document intended general electronics equipment commercial applications (e.g., office automation, communication equipment, measurement equipment, consumer electronics, etc.). These products authorized system application that requires special enhanced quality reliability characteristics system application where failure such system application result loss damage property, death injury humans. Such applications include, limited traffic automotive equipment, safety devices, aerospace equipment, nuclear power control, medical equipment, life-support systems. Certain products this document need government approval before they exported particular countries. purchaser assumes responsibility determining legality export these products will take appropriate necessary steps their expense these. part contents cotained herein reprinted reproduced without prior permission. MS-DOS registered trademark Microsoft Corporation.
Copyright 1999 Electric Industry Co., Ltd.
Printed Japan

Semiconductor MSM6722 DEMO BOARD Semiconductor MSM6722 Demonstrat

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