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STA016T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45
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STA016T
November 2002
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
■ SINGLE CHIP MPEG LAYER 3 DECODER
SUPPORTING:
- All features specified for Layer III in ISO/IEC
11172-3 (MPEG 1 Audio)
- All features specified for Layer III in ISO/IEC
13818-3.2 (MPEG 2 Audio)
- Lower sampling frequencies syntax extension,
(not specified by ISO) called MPEG 2.5
■ DECODES LAYER III STEREO CHANNELS,
DUAL CHANNEL, SINGLE CHANNEL (MONO)
■ SUPPORTING ALL THE MPEG 1 & 2
SAMPLING FREQUENCIES AND THE
EXTENSION TO MPEG 2.5:48, 44.1,32,
24,22.05, 16, 12,11. 025, 8 KHz
■ ACCEPTS MPEG 2.5 LAYER III
ELEMENTARY COMPRESSED BITSTREAM
WITH DATA RATE FROM 8 Kbit/s UP TO 320
Kbit/s
■ BYPASS MODE FOR EXTERNAL AUXILIARY
AUDIO SOURCE
■ ADPCM ENCODING/DECODING
CAPABILITY:
- sample frequency from 8 kHz to 32 kHz
- sample size from 8 bits to 32 bits
- encoding algorithm: DVI, ITU-G726 pack
(G723-24, G721,G723-40)
■ EMBEDDED ISO9660 LAYER FOR FILE-
SYSTEM DECODING (JOLIET)
■ EMBEDDED CD-ROM DECODER BLOCKS
INCLUDING ECC/EDC CAPABILITY
■ FLEXIBLE I
2
S INPUT INTERFACE FOR EASY
CONNECTION WITH MOST CD-SERVO
DEVICES
■ EMBEDDED BROWSING COMMAND
INTERPRETER FOR EASY FILE-SYSTEM
BROWSING
■ CUE-SHEET CAPABILITY UP TO 100
ENTRIES
■ BROWSER COMMAND INTERPRETER (BCI)
- Parent Dir
- Enter Dir
- Previous Entry
- Next Entry
- Get Record Infos
■ EASY PROGRAMMABLE GPSO INTERFACE
(MONO/STEREO) FOR ENCODED DATA UP
TO 5Mbit/s
■ DIGITAL VOLUME
■ BASS & TREBLE CONTROL
■ SERIAL BITSTREAM INPUT INTERFACE
■ EASY PROGRAMMABLE ADC INPUT
INTERFACE
■ SERIAL PCM OUTPUT INTERFACE (I
2
S AND
OTHER FORMATS)
■ PLL FOR INTERNAL CLOCK AND FOR
OUTPUT PCM CLOCK GENERATION
■ CRC CHECK AND SYNCHRONISATION
ERROR DETECTION WITH SOFTWARE
INDICATORS
■ I
2
C CONTROL BUS
■ LOW POWER 2.4V CMOS TECHNOLOGY
WITH 3.3V TOLERANT AND CAPABLE I/O
■ FAST FORWARD AND PAUSE CAPABILITIES
APPLICATIONS
■ AUDIO CD PLAYERS
■ MULTIMEDIA PLAYERS
■ CD-ROM PLAYERS
■ CAR RADIO PLAYERS
TQFP64
ORDERING NUMBER: STA016T
PRODUCT PREVIEW
MPEG 2.5 LAYER III AUDIO DECODER
SUPPORTING CD-ROM CAPABILITY & ADPCM
Obsolete Product(s) - Obsolete Product(s)
Obsolete Product(s) - Obsolete Product(s)
Obsolete Product(s) - Obsolete Product(s)
STA016T
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DESCRIPTION
The STA016 is a single chip MPEG 1, 2 and 2.5 Layer III audio decoder with embedded CDROM decoding ca-
pability. It can be easily connected to most existing CDDSP devices via a software configurable serial link. A
tipical application block diagram is show in Figure 1. Besides MPEG decoding the device can also perform AD-
PCM encoding/decoding from different audio sources and the encoded stream, for instance, can be stored on
an external flash memory.
A useful bypass mode allow using this device also as an audio processor for volume and tone controls.
Figure 1. Typical CD-Player application
ABSOLUTE MAXIMUM RATINGS
(*) guaranteed by design
THERMAL DATA
Symbol Parameter Value Unit
V
DD
Digital Power Supply at 2.5V (nominal) -0.5 to 3.3 V
V
CC
Digital Power Supply at 3.3V (nominal) -0.5 to 4 V
P
LL
-V
CC
Analog Supply Voltage at 2.5V (nominal) -0.5 to 3.3 V
V
IH
/V
IL
Voltage on input pins (3.3V pads) -0.5 to V
CC
+0.5 V
T
stg
Storage Temperature -40 to +150 °C
T
op
Operative ambient temp -40 to +85(*) °C
T
j
Operating Junction Temperature -40 to 125 °C
Symbol Parameter Value Unit
R
th j-amb
Thermal resistance Junction to Ambient 85 °C/W
I2C
SDI
GPSO
I2S OUT
CDDSP I/F
L
R
STA016
CDDSP
CD
Mechanic
MCU
D/A
FLASH MEMORY
for
MP3 files or ADPCM
encoded messages
(optional)
TUNER MODULE
OR
AUX. AUDIO
SOURCE
CD MODULE
Obsolete Product(s) - Obsolete Product(s)
Obsolete Product(s) - Obsolete Product(s)
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STA016T
1OVERVIEW
The device can decode/process data coming from three possible sources, as showed in Figure 2:
■ CDDSP serial link: using this input interface, besides MP3 encoded data CD, it's possible to playback
also standard Audio CD using the available volume and tone equalizer features of the device and
allowing the use of only one D/A converter with no external analog switch.
■ SDI input interface: through this input interface it's possible to decode any MP3 bitstream coming, for
instance, from an external flash memory. This same interface is also used to decode ADPCM streams.
■ I
2
S input interface: this interface can be used both to encode an external audio source (with variable
compression based on 4 different ADPCM algorithm) or to process an external audio source (tuner, for
instance) through the DSP based volume and tone controls:this BYPASS mode can avoid the use of
additional D/A converters or postprocessing units.
1.1 MP3 decoder engine
The MP3 decoder engine is able to decode any Layer III compliant bitstream: MPEG1, MPEG2 and MPEG2.5
streams are supported.
Decoded audio data goes through a software volume control and a two-band equalizer blocks before feeding
the output I
2
S interface. This results in no need for an external audio processor.
Table 1. MPEG Sampling Rates (KHz)
1.2 ADPCM encoder/decoder engine
This device also embeds a multistandard ADPCM encoder/decoder supporting different sample rates (from 8
KHz up to 32 KHz) and different sample sizes (from 8 bit to 32 bits). During encoding process two different in-
terfaces can be used to feed data: the serial input interface (same interface used also to feed MP3 bitstream)
or the ADC input interface, which provides a seamless connection with an external A/D converter. The currently
used interface is selected via I2C bus.
Also to retrieve encoded data a specific interface is available: the fast GPSO output interface. GPSO interface
is able to output data with a bitrate up to 5 Mbit/s and its control pins (GPSO_SCKR, GPSO_DATA and
GPSO_REQ) can be configured in order to easily fit the target application.
MPEG 1 MPEG 2 MPEG 2.5
48 24 12
44.1 22.05 11.025
32 16 8
Obsolete Product(s) - Obsolete Product(s)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45

STA016T

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Buy STA016T
Manufacturer:
STMicroelectronics
Description:
IC DECODER AUDIO 2.5 64TQFP
Lifecycle:
New from this manufacturer.
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