OKI
ML2502 Demo Board
1
ML2502 Demo Board
1999.03.19 ver1.0
INSTRUCTION MANUAL
PRELIMINARY version
GENERAL DESCRIPTION
The ML2502 demonstration board is intended as a familiarisation and
demonstration tool to help design-in the ML2502 analog storage recorder LSI.
BOARD LAYOUT
SWITCHES DESCRIPTION
(1) POWER
Turn on the POWER and LED (12).
(2) ERASE
Erase – enable signal input switch, used together with the
REC1 (6) and/or the REC2 (5).
(3) PLAY2
Input start-playback signal for Phrase 2 to this switch.
(4) PLAY1
Input start-playback signal for Phrase 1 to this switch.
(5) REC2
Input start-recording signal for Phrase 2 to this switch.
(6) REC1
Input start-recording signal for Phrase 1 to this switch.
(2)
ERASE
PLAY2
PLAY1
REC2
REC1
MICROPHONE
SPEAKER
SP.GAIN
ML2502
SAM1
SAM2
ON
OFF
+3V
GND
POWER
MON
(1)
(12)
(7)
(9)
(10)
(11)
(8)
(3)
(4)
(5)
(6)
OFF
1 2 3 4
R.PHR
P.PHR
