LOW POWER CMOS MELODY CHIP 低功耗 CMOS 音樂芯片 VM2195/D/U ----------------------------------------------------------------------------------------------------------------------------------特點 工作電壓(1.2-3.6V) 最多 96 個音符, 內置 RC 振盪器 可選擇掩模板, 可推 LED (3V, 跟音樂閃) 3 種演奏方式 (例如圖一) 低功耗 可直接駁動壓電蜂鳴片/ 喇叭 1.0 FEATURES Wide power supply range (1.2 - 3.6V) Maximum of 96 notes, Built-in RC oscillator Optional Mask , LED drive (3V, follow music) Three playing modes (sample in Fig. 1) Low power consumption Direct driving capability to Piezo Buzzer / Speaker 2.0 ELECTRICAL CHARACTERISTICS 電特性 VDD = 1.5V, VSS = 0V, TA = 25°C (unless otherwise specified 特別註明除外) PARAMETER TEST CONDITIONS SYMBOL Operating Voltage 工作電壓 VDD Standby Current 靜態電流 ISB Operating Current 工作電流 IDD Input Current High 輸入高電流 Input Current Low 輸入低電流 LIMITS MIN TYP MAX UNIT 1.2 1.5 3.6 Volt - - 2 µA - - 32 µA IIH No Playing P1 & P2 Open Playing Out1 & Out2 VDD=1.5V 1 - - µA IIL VDD=1.5V - - 1 µA Output Current High 輸出高電流 |IOH| VDD=1.5V 3.5 - MA Output Current Low 輸出低電流 IOL VDD=1.5V - - 3.5 MA Oscillating Frequency 振盪頻率 FOSC VDD=1.5V 80 - 125 KHz 3.0 APPLICATION INFORMATION 應用資料 Level Hold Mode Ⅰ電平控制一 Buzzer 蜂鳴片 Speaker 喇叭 + + 1 9 1 9 2 8 2 8 3 7 3 7 6 4 4 5 Fig. 1 圖一 Pad # Pad Name Pad # Pad Name Pad # Pad Name 1 VSS 4 P1 7 Output (idle low) 2 T1 5 T2 8 COUT 3 P2 6 Output (idle high) 9 VDD The IC substrate should be connected to VDD. 芯片襯底請接VDD。 5 6 (NPN)