Satoshi Mizoguchi

An experimental BiCMOS video 10 bit ADC

The possibility of realizing a high-quality, low-power, and low-cost video 10 bit analog-to-digital converter is examined utilizing BiCMOS circuit and process technology. A single-power-supply, 10 bit 10 MHz operation, 500 mW power dissipation, and a 4.2*6.2 mm chip size with 4200 elements were obtained. >

BI-CMOS tracking servo LSI for 8 mm VCR

A tracking servo LSI for an 8-mm VCR has been developed by utilizing 3- mu m high-speed bipolar CMOS technology. The chip contains analog functions, such as a low-noise amplifier, a gain-control amplifier, balanced demodulators, rectifiers, a precision Schmit amplifier and subtracter; mixed analog-digital functions, such as switched-capacitor filters, sample-and-hold amplifiers and analog switches; and digital functions, such as an oscillator, a clock generator, counters, and an externally selectable four-mode counter. High-performance mixed analog/digital performance is obtained by combined bipolar and CMOS devices. By integrating all necessary functions on one chip, no adjustment of the servo system is needed and low power capability has been realized.<<ETX>>

A study on modified planar dipole antenna with broadband radiation patterns

In this paper, a modified planar dipole antenna is proposed. Design methodology and mechanism of the proposed antenna with wideband input impedance characteristics and radiation patterns from 3 GHz to 8 GHz are introduced

A Monolithic 10-Bit A/D & D/A Converter for PCM Audio Use

In recent years, digital signal processing techniqque has become to be widely used in various electronics equipments. It allows the fidelity of the signal to be very high compared with that of conventional analog signal. For this purpose, A/D & D/A converters that digitize the analog signal accurately and reconstruct the digital codes into analog signal accurately are necessary.