170 seconds otp voice chip IC

· Standard CMOS process.
· Embedded 16M/8M/4M/2M EPROM.
· 682/341/170/85 sec Voice Length at 6KHz sampling and 4-bits ADPCM compression.
· Maximum 1024 voice groups.
· Maximum 48KHz sample rate.
· Combination of voice blocks to extend playback duration.
· User selectable PCM16 or ULAW8 or PCM8 or ADPCM4 data compression.
· 6 triggering modes are available :
- Key Mode :
S1 ~ S4 to trigger up to 9 voice groups; Power on play function.
- SBT Mode :
SBT to trigger up to 1024 voice groups sequentially; Power on play function.
- CPU Parallel Mode :
S[4:1] services as 4-bits address to trigger up to 16 voice groups.
with SBT goes HIGH to strobe the address bits.
- SPI Mode : CSB , SCK , DI.
3 wire address control up to 1024 voice groups.
- I2C Mode : SCK , DI.
2 wire address control up to 1024 voice groups.
- MP3 Mode :
S1:Backward , S2: Forward , S3:Stop , S4:Reset ,
SBT: (Play/Pause) or (Play/Stop) Trigger up to 1024 voice groups.

Voice Group Trigger Options: Edge / Level; Hold / Unholdable; Retrigger / Non-retrigger.

Optional 16ms or 65us selectable debounce time.

RST pin set HIGH to stop the playback at once.

LVD ( Low voltage detect).

Programmable outputs pin out1:
for busy-H , busy-L , stop-H , stop-L , prog busy-H , prog busy-L , Load,
LED flash ( LED high active ) , ~LED flash ( LED low active ).

Three kind oscillator: Internal-Rosc、External-Rosc、Crystal.

2V – 5V single power supply and < 5uA low stand-by current.

16/8/4 level volume control setting available.

16 bits audio out.

PWM Vout1 and Vout2 drive speaker directly.

D/A COUT pin drives speaker through an external BJT or audio AMP.

Development System support for voice compilation.