Integrated Circuits Inc. aPR33AxDBF-C3.1 aPR33AxDBF-C3.1 (Tape mode) Demo Board User Guide aPR33AxDBF-C3.1 is suitable for aPR33A1 / aPR33A3, 2 chips with supporting Tape mode manages messages. ■ aPR33AxDBF – C3.1 Function： ： Select record / play Select function required : Auto / Next (Default : Auto) Select “Beep” sound on/off Auto ( Auto rewind ) : Record: select slide sw to rec and keep press “PLAY/REC” key to start the first section recording. Release the key to stop. Then long press again to start the second section recording. Release the key to stop. Keep the same operation to record your required messages. Playback: select slide sw to play and press “PLAY/REC” key to start the first message playback. Press again to play the second message and so on. Please note it will play all if you keep to press the key. RESET Key : Press the key to go back to the first message Ver 3 1/3 11/5/2013 Integrated Circuits Inc. aPR33AxDBF-C3.1 Next (Non-Auto rewind) Record: select slide sw to rec and keep press “PLAY/REC” key to start the first section recording. Press “NEXT” key then press “play/rec” key to record the second message and so on. Playback: select slide sw to play and press “PLAY/REC” key to start the first message playback. Press “NEXT” key then press “play/rec” key to play the second message and so on. RESET Key : Press the key to go back to the first message VOICE OUTPUT The aPR33AxDBF 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. If needs Line- In circuit application, please visit http://www.aplusinc.com.tw for datasheet. Ver 3 2/3 11/5/2013 Integrated Circuits Inc. aPR33AxDBF-C3.1 Ver. 3 Rename aPR33AxDB-C3.1F to aPR33AxDBF-C3.1 Ver. 2 Revised the description of operation Remove 4 application circuits. Ver. 1 Original version aPR33AxDB-C3.1F User Guide Ver 3 3/3 11/5/2013