Description
●The TDA7590 is a high performances, fully programmable 24-bit, 120 MIPS. Digital Signal Processor (DSP), designed to support several speech and audio applications, as Automatic Speech Recognition, Speech Synthesis, MP3 Decoding, Echo and Noise Cancellation.
●Nevertheless, the embedded CODECs bandwidth and the generic processing engine allow to proceed also full-band audio signals. The large amount of on-chip memory (128 Kwords), together with the 16 Mwords external memory addressable and the 32 general purpose I/O pins permit to build a DSP-system avoiding the usage of an additional Microcontroller.
●The presence of serial and parallel interfaces allows easy connection with external devices including CODECs, DSPs, Microprocessors and Personal Computers.
●Features
●■ 24-bit, fixed point, 120 MIPS DSP core
●■ Large on-board memory (128KW-24 bit)
●■ Host access to internal RAM through expansion port
●■ Access to external RAM (16Mw) through expansion port
●■ Integrated stereo, 18-bit Sigma-DELTA A/D and 20-bit D/A converters
●■ Programmable CODEC sample rate up to 48KHz
●■ On-board PLL for core clock and converters
●■ External flash / SRAM memory bank management
●■ I2C and SCI serial interface for external control
●■ 2 ESSI interface
●■ JTAG interface
●■ Host interface
●■ 144-pin TQFP, 0.50mm pitch
●■ Automotive temperature range (from -40°C to +85°C)
●Applications
● Real time digital speech and audio processing: speech recognition, speech synthesis, speech compression, echo canceling, noise canceling, MP3 decoding.
