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TDA7550ST ?N/a1000avaiDIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS


TDA7550 ,DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONSAPPLICATIONS24-BIT, FIXED POINT, 45 MIPS DSP CORELARGE ON-BOARD PROGRAM RAM ANDDATA RAM (16Kw-24 BI ..
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TDA7550
DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS
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TDA7550R
DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND
AUDIO APPLICATIONS
n 24-BIT, FIXED POINT, 45 MIPS DSP CORE
tr LARGE ON-BOARD PROGRAM RAM AND
DATA RAM (16Kw-24 BIT DATA RAM AND
16Kw-24 BIT PROGRAM RAM)
a INTEGRATED STEREO, 16-BIT SIGMA-
DELTA AID AND D/A CONVERTERS
n PROGRAMMABLE CODEC SAMPLE RATE
FROM 4 TO 48 kHz
gr ON-BOARD PLL FOR CORE CLOCK AND
CONVERTERS
n MANAGEMENT OF EXTERNAL FLASH /
SRAM / DRAM MEMORY BANK
n ft OR SPI SERIAL INTERFACE FOR EX-
TERNAL CONTROL
n 80-PIN TQFP, 0.65 mm PITCH
n AUTOMOTIVE GRADE (FROM MO'' C to
+85°C)
DESCRIPTION
The TDA7550R is a high performances, fully pro-
grammable 24-bit, 45 MIPS Digital Signal Proces-
sor (DSP), designed to support several speech
and audio applications, as Automatic Speech
BLOCK DIAGRAM
TQFP80
ORDERING NUMBER: TDA7550R
Recognition, Speech Synthesis, Speaker VeriMa-
tion, Echo and Noise Cancellation. Software for
these applications is licenced by Lernout & Haus-
pie and BIT Innovation Technologies.
It offers an effective solution for this kind of appli-
cations because of the AID and D/A converters
and the big amount of memory integrated on chip.
APPLICATIONS
Real time digital speech and audio processing:
speech recognition, speech synthesis, speech
compression, echo canceling, noise canceling,
speaker verification.
MULTIPLEXED BUS
IZC/SPI MEMORY
PORT INTERFACE
PROGRAM
ANALOG OUT
ANALOG IN
D99AU 1020B
July 2001
TDA7550R
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Vdd 3.3V Power Supply Voltage -0.5 to 4 V
Input or Output Voltage -0.5 to (Vdd +0.5V) V
Input or Output Voltage (Note 1) -0.5 to 5.5 V
Note 1: For 5V tolerant inputs and 5V tolerant output buffers in tri-state mode.
THERMAL DATA
Symbol Parameter Value Unit
Rm j-pins Thermal Resistance Junction pins Max. 55 °CNV
PIN CONNECTION
a 8 8 E 8 '- CL
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EMI_ADsE 1 C) 60 Cl CGNDA
EMI_AD6 E 2 59 Cl VINL
VDD E 3 58 :IVINR
GND E 4 57 JCGND
EMI_AD7 E 5 56 Cl CVDD
EMI_A8 L 6 55 Cl VOUTL
EMI_A7 E 7 54 Cl VOUTR
EMI_A10 E 8 53 Cl VDD
EMI_A11 E 9 52 :IGND
EMI_A12 E 10 51 Cl GPIO3
EMI_A13 E 11 50 Cl GPIOG
EMI_A14 L 12 49 Cl GPIO2
EMI_A15 E 13 48 Cl GND
VDD E 14 47 :IVDD
GND E 15 46 Cl SDA/SS
EMI_A16 E 16 45 Cl SCL/SCK
EMI_A17 E 17 44 Cl INTN
EMI_A18 E 18 43 Cl NRESET
EMI_A19 E 19 42 Cl DBRQN
EMI_A20 E 20 41 J DBOUT
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