General Description

The AVXX32E -A are series of single-chip synthesizing CMOS VLSI IC which synthesizes voice by LOG_PCM algorithm. Table programming and shared multiple I/O pins make the applications flexible.

特性 Features

? Operating voltage: 2.4V~5.0V

? One single-key can implement play-all, play-next and random function.

? Maximum play count is 16.

? Each input can implement looping function.

? Single-key input can be last-key priority for stand-alone input or first-key priority.

? Each input trigger can select trigger mode: (For OKY, TG0, TG1, TG3) Edge/Level, Hold/Unhold, Retrigger/Irretrigger.

? Each input trigger can select its own debounce time:

Fast debounce: < 200us;

Slow debounce: ~16ms (S.R.=6.0kHz)

? Support bouncing trigger solution for retrigger application. (Second trigger force to retrigger and slow debounce.)

? Maximum table entries are 204*4.

? Word count is only limited by ROM capacity.

? 3 output ports for Status or LED application:

- OP_A Status:

Busy_high, DC_low, Stop_high,DC_high

LED: +Fast,+Slow, Dyn(7/10), Off

- OP_B Status:

Busy_high, DC_low, Stop_high, DC_high

LED: -Fast, -Slow, Dyn(9/10), On

- OP_C Status: Busy_high, DC_low,

Busy_low, DC_high

LED: +Fast, +Slow, On, Off

? Each output can specify its initial state (High or Low)

? Outputs can be set as constant current regardless of the supply voltage varied.

? Two PWM playing ports. Drive speaker or buzzer directly.

? Body define: 3, 7, 14 seconds. (Total ROM size : 18k,42k,84k)

? voice length(3s body:16384*5,7s body:40960*5,14s body:83968*5)

? Voice algorithm: 5-bits LOG_PCM

? External resister for system frequency

? Sixteen default sampling frequencies are supported. The default frequencies can be changed by applying an external resistor.

? Support single key play on/off. (For OKY, TG0, TG1)

? Programmable only pull-low input. (For OKY,TG3)

? Programmable pull-high, pull-low or floating input. (For TG0,TG1)

? TG3_OPC pin can option as input or output by mask option