AP89341 Aplus Integrated circuits Inc., AP89341 Datasheet - Page 6

• Manufacturer Part Number: AP89341
• Description: Voice Otp Ic
• Manufacturer: Aplus Integrated circuits Inc.

Programmable Options
In Key Trigger Mode (M1=0; M0=0) and CPU Parallel Trigger Mode (M1=0; M0=1), user can select
different trigger functions and output signals to be sent out from the pins OUT1, OUT2 and OUT3.
Options that affect all Voice Group playback are called Whole Chip Options. Options that only affect
the playback of individual Voice Group are called Group Options.
Whole Chip Options
Ver 3.0
Long (16ms) or short (65us) debounce time at 8KHz sampling rate.
Ramp-up-down enable or disable:
When COUT is used for playback, Ramp-up-down should be enabled. This function eliminates
the ‘POP’ noise at the begin and end of voice playback.
When VOUT1 and VOUT2 are used to drive speaker directly, Ramp-up-down should be
disabled.
Output Options:
This option sets up the three output pins OUT1, OUT2 and OUT3 to send out different signals
during voice playback. Four settings are allowed:
Note: BUSY can be set or reset associated with each Voice Block. Stop plus must be set to
Fig. 1 Ramp-up-down Enable
Integrated Circuits Inc.
Option 1
Option 2
Option 3
Option 4
enable in order to have STOP plus to come out at the end of playback.
OUT1
LED1
STOP
LED1
LED1
Fig. 3 Output waveforms
5
OUT2
BUSY
BUSY
LED2
LED1
Fig.2 Ramp-up-down Disable
aP89341/170/085
BUSYB
OUT3
BUSY
STOP
LED2
Aug 17, 2007