SOUND GENERATOR 聲效芯片 VM42 ----------------------------------------------------------------------------------------------------------------------------------特點 1.0 FEATURES Four sounds selectable with 2 keys 可以 2 鍵選擇 4 種聲效 Typical 3V operation 典型工作電壓 3V RC oscillator with built-in capacitor, built-in resistor is also RC 振盪器內置電容, available with mask option 內置電阻有掩模板選擇 Mono-tone performance 單音演奏 Connecting an NPN transistor can drive a speaker 連接 NPN 三極管可驅動喇叭 Power on reset and fast test capability 上電復位及快速測試能力 2.0 ELECTRICAL CHARACTERISTICS 電特性 VSS = 0V, TA = 25°C (unless otherwise specified 特別註明除外) LIMITS SYMBOL TEST CONDITIONS MIN TYP MAX Operating Voltage 工作電壓 VDD - 2.4V 3V 3.6V Operating Current 工作電流 IDD VDD = 3V - - 25µA *F/F See note - - 20% F VDD = 3V 100 110 +120 Output Voltage High 輸出高電壓 VOH VDD = 3V 2.2V - - Output Voltage Low 輸出低電壓 VOL VDD = 3V 0 - 0.4 IO VDD = 3V 3mA - - PARAMETER Frequency Stability 頻率穩定性 Frequency (KHz) 頻率 Output Current 輸出電流 NOTE : FOSC ( 3.3V ) - FOSC ( 2.7V ) FOSC ( 2.7V) 3.0 APPLICATION INFORMATION 應用資料 VDD VDD SEL2 SP SEL1 TR1 R2 OSC1 OSC2 VS R1 The IC substrate should be connected to VDD. 芯片襯底請接VDD。 R1 = 240KΩ R2 = 10KΩ TR1 : 2SC9013 SP : 8Ω 0.2W Speaker