电能计量及管理

TM7780是单相多功能计量芯片，其提供高频脉冲CF用于电能计量和高频CF1用于指示电流有效值或电压有效值。TM7780使用新型的防潜动算法，只要输入信号的功率值大于内部的噪声值，计量模块则开始正确计量。本产品性能优良，质量可靠。 \n\n\t• 5V单电源供电，工作电流小于3mA\n\n• 内置电源检测电路，当电源电压低于4V时，芯片进入复位状态\n\n• 内置振荡器频率约为3.579MHz，电源电压抑制比<0.01/V\n\n• 高频脉冲CF，指示有功功率，满足50/60Hz IEC 687/1036标准的准确度要求，在1000:1范围内达到±0.2%的精度\n\n• 高频脉冲CF1，可配置成为输出电流有效值或电压有效值，在500:1的范围内达到±0.5%的精度\n\n• 封装形式：SOP8;

Stereo zoom microphone amplifier for camcorders

The BA7780KV is a microphone amplifier developed for use in camcorders. The IC features an electronic volume circuit for presetting the curve required for the stereo zoom function, a microphone element power supply regulator, a wind-noise rejection filter, a current limiting circuit for external a

Stereo zoom microphone amplifier for camcorders

The BA7780KV is a microphone amplifier developed for use in camcorders. The IC features an electronic volume circuit for presetting the curve required for the stereo zoom function, a microphone element power supply regulator, a wind-noise rejection filter, a current limiting circuit for external a

QPSK Downconverter for CATV Systems

Overview The LA7780M is a downconverter for QPSK data demodulation for digital CATV transmission. This IC integrates a preamplifier, an AGC amplifier, a mixer, an oscillator, a post-amplifier, and other circuits in a single chip, and provides all the functions required from cable signal input thr

ThunderBird Q3D PCI Audio Accelerator

GENERAL DESCRIPTION The SAA7780 ThunderBird Q3DTM is a high-performance PCI audio accelerator targeting PC gaming and music applications. Developed by QSound Labs and Philips Semiconductors, it combines the most compelling 3D, quadraphonic and music synthesis technologies available with the

MECHANISM DRIVER FOR IC LOGIC CONTROL

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