l Standard CMOS process.
l Embedded EPROM.
l Embedded 8-bit MCU.
l 42sec voice duration at 6 KHz sampling with 4-bit ADPCM
l Combination of voice building blocks to extend playback
l Table entries are available for voice block combinations.
l User selectable PCM or ADPCM data compress.
l Voice Group Trigger Options: Edge / Level; Hold / Un-hold;
Retrigger / Non-retrigger.
l Programmable I/Os, Timer Interrupt and Watch Dog Timer.
l Built-in oscillator with fixed Rosc, software control sampling
l 2.2V 3.6V single power supply and < 5uA low stand-by
l PWM Vout1 and Vout2 drive speaker directly.
l D/A COUT with ramp-up ramp-down option to drive speaker through
an external BJT.
Aplus aIVR is a 8-bit CPU based Voice chip series. It is fabricated
with Standard CMOS process
with embedded voice storage memory. It can store from 10 to 341 sec
voice message with 4-bit
ADPCM compression at 6KHz sampling rate. 8-bit PCM is also
available as user selectable option to
improve sound quality. Depending on IC body, there are up to twelve
programmable I/O pins. Key
trigger and Parallel CPU trigger mode can be configured according
to different application requirement.
User selectable triggering and output signal options provide
maximum flexibility to various applications.
Built-in resistor controlled oscillator, 8-bit current mode D/A
output and PWM direct speaker driving
output minimize the number of external components.
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