Modulation semiconductor integrated circuit device and electronic system

A filter that can achieve miniaturization and low power consumption at the same time without reducing operation precision, and a modulation semiconductor integrated circuit suitable for a wireless communication system using the filter are realized. In a modulation semiconductor integrated circuit including a digital filter that sample a digital transmission data signal an odd number of times for each two symbol cycles to perform product-sum operations, and a DA conversion circuit that subjects the output of the digital filter to DA conversion, a compensating circuit is provided which inserts predetermined values different from two types of symbols to the input of the digital filter.