ANALOG/DIGITAL HYBRID INTEGRATED CIRCUIT

摘要

Digital circuits such as an A/D converter (7) and a D/A converter (9) are disposed nearly at the center of an IC chip (20) to prevent much coupling noise on wirings or much loss on the wirings from occurring even if the wirings elongate from pads (23) provided in the periphery of the IC chip (20) to the digital circuits provided nearly at the center. Analog circuits such as an RF circuit (21) and an IF circuit (22) are disposed in a periphery of the IC chip (20) to suppress the coupling noise on the wiring or loss on the wiring by shortening the wirings from the pads (23) to the analog circuits. A power source can be supplied at a low noise and low loss with the impedance reduced for connection to the power source line and a ground line (24).