UPC2800A中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

FEATURES

? High reliability due to high-frequency lighting fluorescent lamp

Internal trap circuit

? Internal bandpass filter

Central frequency variable by external resistor: fO = 30 to 80 kHz

Few variation of central frequency thanks to fO trimming

? Low external components

Internal output pull-up resistor and power supply filter resistor

Only low external capacitance required

? ABLC (Automatic Bias Level Control) circuit

Controls fluctuation of bias level cause by disturbance from external light

? Open-collector output

Open-collector output (active low) with pull-up resistor (33 kW TYP.)