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BL50462是上海贝岭微电子制造有限公司生产的彩电红外遥控发射集成电路。它采用3微米N阱硅栅CMOS工艺技术,因此功耗低,电源电压范围宽。配上8×8 键盘矩阵后,可传送由16位PCM码组成的76个指令。被发射的红外线由40kHz(或38kHz)频率调制,因而不受阳光或灯光的影响,抗干扰性强。设有两位用户码输入端,以便适应不同厂家和不同机器的需要。该电路可靠性好,功能完善,已被用于国内彩电遥控器中。下面就 BL50462的性能及应用作一介绍。
BL50462 is the Shanghai Beiling Microelectronics Manufacturing Co., Ltd. production of color TV remote control launch integrated circuits. It uses 3 micron N-well silicon gate CMOS process technology, so low power consumption, wide power supply voltage range. Coupled with the 8 × 8 keyboard matrix, can be transmitted by the 16-bit PCM code consisting of 76 instructions. The emitted infrared is modulated by a frequency of 40 kHz (or 38 kHz) so it is immune to sunlight or light and is highly immune to interference. With two user code input, in order to adapt to different manufacturers and different needs of the machine. The circuit reliability, functional, has been used for domestic color TV remote control. The following BL50462 performance and application for an introduction.