介绍一种可编程系统芯片PSoC(Programmable System on-Chip)的主要功能，逻辑结构及其系统实现。分析了V/F 转换器的基本原理，提出了在传统V/F 转换器的基础上，通过使用PSoC 上的数模混合信号阵列芯片实现压频转换的功能。相比传统技术，新设计方式易于多功能集成，简化了外围电路，具有成本低廉，精度高，功耗低，可靠性好的优点。关键字：PSoC V/F 转换器 数模混合信号阵列芯片Abstract: This paper introduces a programmable system-chip PSoC (ProgrammableSystem On-Chip), including its key function, logical structure and systemimplementation. Analyzing its basic axiom of voltage to frequency converter,demonstrating a new method to build V/F converter using one continuous time PSoCblock and Analog/Digital mixed signal array block based on traditional V/Fconverter. Compared to traditional technique, advantages are obvious, such assimplify external circuit, low cost, high precision, low power consumption, goodreliability. And it also makes function integrating more easier.Key Words: PSoC, V/F converter, Analog/Digital mixed signal array block