TDA7590 Datasheet, PDF (1/40 Pages) STMicroelectronics – Digital signal processing IC for speech and audio applications

TDA7590
Digital signal processing IC for speech and
audio applications
Preliminary Data
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)
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.
TQFP144
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.
In particular, the Debug/JTAG interface permits
the on-chip emulation of the firmware developed.
Further, the presence of the Timers and
Watchdog Block makes TDA7590 suitable for
PWM processing and allows the integration of a
system Watchdog.
Applications
Real time digital speech and audio processing:
speech recognition, speech synthesis, speech
compression, echo canceling, noise canceling,
MP3 decoding.
Order codes
Part number
E-TDA7590⁽¹⁾
E-TDA7590TR⁽¹⁾
1. ECOPACK® (see Chapter 9)
Package
TQFP144 (20x20x1.0 exposed pad down)
Packing
Tube
Tape & Reel
April 2006
Rev 1
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/40
www.st.com
40