深圳市骏旺微电子有限公司

FEATURES
? Standard CMOS process.
? Embedded 1M bits EPROM.
? 42 sec Voice Length at 6KHz sampling and 4-bit ADPCM compression.
? Maximum 32 voice groups.
? Combination of voice blocks to extend playback duration.
? 960 table entries are available for voice block combinations.
? User selectable PCM or ADPCM data compression.
? Two triggering modes are available (EPROM programmable options).
- Key Trigger Mode – Combinations of S1 ~ S8 to trigger 32 Voice Groups; SBT
sequential trigger is possible.
- CPU Parallel Trigger Mode – Combinations of S1 ~ S5 with SBT goes HIGH to
strobe start the voice playback.
? Voice Group Trigger Options: Edge / Level; Hold / Un-hold; Retrigger / Non-retrigger.
? Whole Chip Options: Ramp / No-ramp; Output Options; Key / CPU trigger mode.
? 16ms (@ 8KHz sampling rate) Debounce Time for both Key and CPU Trigger Mode.
? RST pin set to HIGH to stop playback at once.
? Two user programmable outputs for STOP pulse, BUSY signal and flashing LED.
? Built-in oscillator to control sampling frequency with an external resistor.
? 2.6V – 5.0V; Wide range single power supply and < 5uA low stand-by current.
? PWM Vout1 and Vout2 drive speaker directly.
? D/A COUT to drive speaker through an external BJT.
? Development System support voice compilation and options selection.

 aP8942A

 产品特点：

● aP8942A标准CMOS工艺。

●aP8942A内置1M的EPROM。

●aP8942A在6KHz采样和4bit ADPCM压缩下42秒的语音长度。

●aP8942Azui多32组声音

●aP8942A声音切片组合，延长播放时间。

●960段语音模块可重复组合。

●用户可选择PCM或ADPCM数据压缩。

●两个触发模式可用于选择（EPROM可编程选项）。

◆按键触发模式◆CPU并行触发模式

●语音组触发选项：边沿/电平;保持/取消保持;重新触发/非再触发。

●整个芯片选项：Ramp / No-ramp;输出选项;按键/ CPU触发模式。

●RST引脚设置为HIHG停止播放yi次。

●三种用户可编程的输出，停止脉冲，BUSY信号和闪烁的LED。

●用一个外部电阻来调整内部振荡器去控制采样频率。

●2.6V - 5.0V单电源供电和<5UA低待机电流。

●PWM VOUT1和VOUT2直接驱动扬声器。

●D/A COUT通过外部BJT驱动扬声器。

●桌面系统支持语音编辑和开发选项的选择。