TC9446F

TC9446F TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC9446F Audio Digital Processor for Decode of Dolby Digital (AC-3), MPEG2 Audio TC9446F is the various digital signal processor for decoding. It contains the decode processing program which embraced encoding signals, such as Dolby Digital (AC-3)/Pro Logic (Note 1), MPEG2 audio and DTS (Note 2). Decoding of Dolby Digital or MPEG2 audio is made with a single chip. Moreover, an external memory can be connected to the TC9446F to decode DTS. Features Dolby digital (AC-3) or MPEG2 audio decode Acceptable bit rate upto 640 kbps Audio interface 4 output port, 2 input port (2 port of LRCK and BCK) DIR (digital audio interface receiver) built-in DIT (digital audio interface transmitter) built-in DIR and DIT are available upto 96 kHz sampling of 2 channel Operating clock: DLL oscillator upto 6th times for DSP clock Instruction cycle: 20 ns/1 instruction at 50 MIPS operation DSP Processor: 24 bit × 24 bit + 51 bit multiplier and adder, 51 bit ALU Data bus: 24 bit × 3 Data RAM: 12 k word Coeficient ROM: 4 k word Program ROM: 12 k word Program RAM: 128 word MCU interface: Serial interface or I2C bus interface Others It is possible to connect external RAM, 256 k or 1 M SRAM External interruption input terminal Flag input terminal: 4 inputs General-purpose output port: 8 outputs (The ports can be used as interrupt outputs to MCU and logic control outputs.) incorrect operation detect Operating Voltage: 3....