AP89042 Aplus Integrated circuits Inc., AP89042 Datasheet - Page 6

• Manufacturer Part Number: AP89042
• Description: Voice Otp Ic
• Manufacturer: Aplus Integrated circuits Inc.

Programmable Options
In both Key Trigger Mode and CPU Parallel Trigger Mode, user can select different trigger functions
and output signals to be sent out from the pins OUT1, OUT2 and OUT3.
Options affect all Voice Group playback are called Whole Chip Options. Options only affect the
playback of individual Voice Group are called Group Options.
Whole Chip Options
Ver 3.2
Key or CPU Parallel Trigger Mode.
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 beginning 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 and OUT2 to send out different signals during
voice playback. Four settings are allowed:
Note: Stop plus and BUSY must be set to enable in order to have STOP
Fig. 1 Ramp-up-down Enable
Integrated Circuits Inc.
Option 1
Option 2
Option 3
Option 4
plus and BUSY high to come out.
OUT1
LED2
STOP
LED1
LED1
Fig. 3 Output waveforms
6
OUT2
BUSY
BUSY
LED1
LED1
Fig.2 Ramp-up-down Disable
/BUSY
OUT3
BUSY
LED2
STOP
aP89042
May 31, 2007