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PDF 7550 Data sheet ( Hoja de datos )
| Número de pieza | 7550 | |
| Descripción | TDA7550 | |
| Fabricantes | STMicroelectronics | |
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Hay una vista previa y un enlace de descarga de 7550 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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TDA7550/R TDA7551
® TDA7552 TDA7553
DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND
AUDIO APPLICATIONS
PRODUCT PREVIEW
24-BIT, FIXED POINT, 50 MIPS DSP CORE
LARGE ON-BOARD PROGRAM ROM AND
DATA RAM (UP TO 16Kw ROM/RAM AND
16Kw RAM)
INTEGRATED STEREO A/D AND D/A, 16-BIT
SIGMA-DELTA
PROGRAMMABLE CODEC SAMPLE RATE
FROM 4 TO 48 kHz
ON-BOARD PLL FOR CORE CLOCK AND
CONVERTERS
MANAGEMENT OF EXTERNAL
FLASH/SRAM/DRAM MEMORY BANK
I2C OR SPI SERIAL INTERFACE FOR EX-
TERNAL CONTROL
80-PIN TQFP, 0.65 mm PITCH
AUTOMOTIVE GRADE (FROM -40° C to
+85°C)
DESCRIPTION
The TDA755X family is a high performances, fully
programmable 24-bit, 50 MIPS Digital Signal
BLOCK DIAGRAM
TQFP80
Processor (DSP), designed to support several
speech and audio applications, as Automatic
Speech Recognition, Speech Synthesis, Speaker
Verification, Echo and Noise Cancellation. Soft-
ware for these applications is licenced by Lernout
& Hauspie and NCTI.
It offers an effective solution for this kind of appli-
cations because of the A/D and D/A converters
and the big amount of memory integrated on chip.
MULTIPLEXED BUS
I2C/SPI
PORT
FLASH
INTERFACE
SAI
ROM/RAM
RAM
8
FLAGS
DSP
CORE
PLL
DAC
ADC
L
R
L
R
ANALOG OUT
ANALOG IN
D99AU1020A
September 1999
This is preliminary information on a new product now in development. Details are subject to change without notice.
1/12
Free Datasheet http://www.datasheet4u.com/
1 page  
TDA7550R - TDA7550 - TDA7551 - TDA7552 - TDA7553
PIN FUNCTIONS (continued)
N. Name Type
Description
69 XTI
I Crystal Oscillator Input. Crystal Oscillator Input drive
70 PGND
O PLL Ground Input. Ground connection for Oscillator circuit
71 PVCC
I PLL Power Supply Positive. Supply for PLL Clock Oscillator
72 XTO
O Crystal Oscillator Output. Crystal Oscillator Output drive
73 ALE
O EMI Address Latch Enable. This pin acts as the EMI Address Latch Enable for the
External Memory Interface
74 GND
I Ground
75 DRDN
O EMI Read Enable. This pin serves as the read enable for the EMI
76 EMI_AD0
I/O EMI Multiplexed Address/Data Line 0. these pin acts as the EMI multiplexed
address and data line 0
77 EMI_AD1
I/O EMI Multiplexed Address/Data Line 1. these pin acts as the EMI multiplexed
address and data line 1
78 EMI_AD2
I/O EMI Multiplexed Address/Data Line 2. these pin acts as the EMI multiplexed
address and data line 2
79 EMI_AD3
I/O EMI Multiplexed Address/Data Line 3. these pin acts as the EMI multiplexed
address and data line 3
80 EMI_AD4
I/O EMI Multiplexed Address/Data Line 4. these pin acts as the EMI multiplexed
address and data line 4
RECOMMENDED DC OPERATING CONDITIONS
Symbol
VDD
TJ
Parameter
Power Supply Volrage Range
Operating Junction Temp.
Test Condition
Min.
3
–40
Typ.
3.3
Max.
3.6
125
Unit
V
°C
5/12
5 Page 
TDA7550R - TDA7550 - TDA7551 - TDA7552 - TDA7553
DIM.
MIN.
mm
TYP. MAX. MIN.
inch
TYP. MAX.
A
1.60
0.063
A1 0.05
0.15 0.002
0.006
A2 1.35 1.40 1.45 0.053 0.055 0.057
B 0.22 0.32 0.38 0.009 0.013 0.015
C 0.09
0.20 0.003
0.008
D 16.00
0.630
D1 14.00
0.551
D3 12.35
0.295
e 0.65
0.0256
E 16.00
0.630
E1 14.00
0.551
E3 12.35
0.486
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1.00
0.0393
K 3.5°(min.), 7°(max.)
OUTLINE AND
MECHANICAL DATA
TQFP80
(14x14x1.40mm)
60
61
D
D1
D3
e
B
PIN 1
IDENTIFICATION
80
1
41
40
0.10mm
.004
Seating Plane
A
A2
A1
E3 E1 E
21
20
TQFP80L
Gage plane
0.25mm
K
L
L1
C
11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet 7550.PDF ] | |
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