ISD-ES502 Datasheet, PDF (2/7 Pages) Winbond – Demonstration Board

DESCRIPTION:
The ES502 demonstration board illustrates the signal routing and flexibility of the ISD5008 as well as its
recording and playback functions. The unit comprises an ISD5008, an ISD2560 to simulate background
conversation, a Winbond W78E51 microcontroller, microphone and attendant circuitry, a seven-segment
display for displaying mode and level information, and a keypad for selecting the modes. In addition,
there are Power, Record, Pause and Play pushbuttons.
The most prominent feature of the system is an LED map of the available signal paths (indicated by red
LEDs) which indicates the path in use for each of the demonstration modes. The map also shows which
sections of the device are powered for each function with orange LEDs and the selected volume level
with yellow LEDs in a bar graph.¹
DEVICE SUPPORTED:
Product supported
Ordering Code
ISD5008 Series
ISD-ES502
CONTENTS OF KIT:
− One ISD-ES502 Demo Board
− Two AA batteries
− Instruction Sheet( User’s guide with Schematics)
INITIAL SETUP:
1.
When the ISD-ES502 board is initially received install the batteries, carefully observing polarity.
2.
If some of the LEDs light at this time, push the green Power Button to start unit properly.
3.
Otherwise, push the green Power Button on the lower left to power on the unit. The ES502 will
announce that it is "Ready" and conclude with the "-" in the middle of the numeric LED display
turned on. Note that the unit will automatically turn itself off after a period of inactivity to conserve
battery capacity. If one wants to shut it off earlier then just press the "*" button on the keypad.
The ES502 will sound a tone and turn off.
4.
The ISD-ES502 is now ready for the user to choose the mode of operation.
There are three utility functions and six demonstration modes:
Utility Functions
Before trying the various modes it is necessary to understand the three action control buttons located at
the bottom left of the board and the three general-purpose buttons on the keyboard.
Record Button - The Record Button is a push-push type of control. When it is first pushed, the Record
operation will begin and continue until the end of the message space or the Record Button is pressed
again. Thus the Record Button is used to both Start and Stop the Record operation.
Pause Button - The Pause Button will pause a Record or Play operation until the Record or Play button
is pressed again. Then the paused operation will resume.
1 _{A block diagram of the ISD5008 chip showing all of it’s possible paths is located at the end of this document}
ISD-ES502.PDF
02/10/06