Integrated Circuits Inc. aPR33AxDBS-C3.1 aPR33AxDBS-C3.1 (Tape mode) Demo Board User Guide aPR33AxDBS-C3.1 is suitable for aPR33A3, 2 chips with supporting Tape mode manages messages. ■ aPR33AxDBS –C3.1 Function： ： PCB size : 51 x 39 mm If needs Line- In circuit application, please visit http://www.aplusinc.com.tw for datasheet. Ver 3 1/3 JAN 06 2014 Integrated Circuits Inc. aPR33AxDBS-C3.1 ◎ Auto Rewind option & Beep is ON. ◎ Auto Rewind option & Beep is OFF. ◎ Non-Auto Rewind option & Beep is ON. ◎ Non-Auto Rewind option & Beep is OFF. VOICE OUTPUT The aPR33AxDBS support 2 voice output mode, PWM and DAC. ( Default : PWM ) The PWM mode use VOUT1 and VOUT2 pin to drive speaker. The DAC mode use VOUT2 pin to connect your transistor or amplifier. (A) PWM (B) DAC ◎ For more DAC application, Please visit http://www.aplusinc.com.tw for data sheet. Ver 3 2/3 JAN 06 2014 Integrated Circuits Inc. aPR33AxDBS-C3.1 Ver. 3 Delete aPR33A1 data. Ver. 2 Rename aPR33AxDB-C3.1S to aPR33AxDBS-C3.1 Ver. 1 Original version aPR33AxDB-C3.1S User Guide Ver 3 3/3 JAN 06 2014