AUDIO SIGNAL DATA PROCESSOR

摘要

PURPOSE:To connect an A/D converter to a DISP without using any external component by supplying clock pulses to the A/D converter and performing converting operation in synchronism with the clock pulses. CONSTITUTION:An audio signal inputted to the A/D converter 1 is converted into digital audio signal data groups d1, d2 ... dn at each sampling period synchronized with the clock pulses from a clock generator 28 and the audio signal data groups are supplied to a 1st data bus 4 through an interface 3. The signal data groups supplied to the data bus 4 are stored on RAMS 5 and 6. The sampling operation of the A/D converter is performed in synchronism with the clock pulses controlling the operation timing of a digital signal processor (DSP) 2. Consequently, the constitution of the whole device can be simplified while no individual clock pulse generator is required.