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STMicroelectronics Electronic Components Datasheet

STA014B Datasheet

(STA014x) MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM AND SRS WOWO POSTPROCESSING CAPABILITY

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STA014B pdf
® STA014 STA014B STA014T
MPEG
2.5
LSARYESRWIIOI WAU®DPIOOSDTEPCROODCEERSWSIINTGH
ADPCM AND
CAPABILITY
PRODUCT PREVIEW
The Device incorporates the SRS
WOW® Technology under li-
cence from SRS Labs, Inc.
mSINGLE CHIP MPEG2 LAYER 3 DECODER
SUPPORTING:
o- All features specified for Layer III in ISO/IEC
11172-3 (MPEG 1 Audio)
.c- All features specified for Layer III in ISO/IEC
13818-3.2 (MPEG 2 Audio)
- Lower sampling frequencies syntax extension,
U(not specified by ISO) called MPEG 2.5
DECODES LAYER III STEREO CHANNELS,
t4DUAL CHANNEL, SINGLE CHANNEL
(MONO)
eSUPPORTING ALL THE MPEG 1 & 2 SAM-
PLING FREQUENCIES AND THE EXTEN-
eSION TO MPEG 2.5:
48, 44.1, 32, 24, 22.05, 16, 12, 11. 025, 8 KHz
hACCEPTS MPEG 2.5 LAYER III ELEMEN-
TARY COMPRESSED BITSTREAM WITH
SDATA RATE FROM 8 Kbit/s UP TO 320 Kbit/s
ADPCM CODEC CAPABILITIES:
ta- sample frequencyfrom 8 kHz to 32 kHz
- sample size from 8 bits to 32 bits
a- encodingalgorithm: DVI,
ITU-G726pack (G723-24,G721,G723-40)
- Tone controlandfast-forward capability
.DSRS WOW(1) TECHNOLOGY CAN BE USED
AS POSTPROCESSING. SUPPORT FOR
DIFFERENT SPEAKERS TYPES:
w- headphone
- medium
w- large
WOW(1) TRUEBASS AND FOCUS CAN BE
wINDIPENDENTLY ADJUSTED
EASY PROGRAMMABLE GPSO INTERFACE
mFOR ENCODED DATA UP TO 5Mbit/s
o(TQFP44 & LFBGA 64)
.cDIGITAL VOLUME
UBASS & TREBLE CONTROL
t4SERIAL BITSTREAM INPUT INTERFACE
eEASYPROGRAMMABLE ADC INPUT INTERFACE
eANCILLARY DATA EXTRACTION VIA I2C IN-
hTERFACE.
SSERIAL PCM OUTPUT INTERFACE (I2S
ataAND OTHER FORMATS)
ORDERING NUMBERS: STA014 (SO28)
STA014T (TQFP44)
STA014B (LFBGA 64)
PLL FOR INTERNAL CLOCK AND FOR OUT-
PUT PCM CLOCK GENERATION
CRC CHECK AND SYNCHRONISATION ER-
ROR DETECTION WITH SOFTWARE INDI-
CATORS
I2C CONTROL BUS
LOW POWER 2.4V CMOS TECHNOLOGY
WIDE RANGE OF EXTERNAL CRYSTALS
FREQUENCIES SUPPORTED
APPLICATIONS
PC SOUND CARDS
MULTIMEDIA PLAYERS
VOICE RECORDERS
DESCRIPTION
The STA014 is a fully integrated high flexibility
MPEG Layer III Audio Decoder, capable of de-
coding Layer III compressed elementary streams,
as specified in MPEG 1 and MPEG 2 ISO stand-
ards. The device decodes also elementarystreams
compressed by using low sampling rates, as speci-
fied by MPEG 2.5. STA014 receives the input data
through a Serial Input Interface. The decoded sig-
nal is a stereo, mono, or dual channel digital output
that can be sent directly to a D/A converter, by the
PCM Output Interface. This interface is software
programmable to adapt the STA014 digital output
to the most common DACs architectures used on
the market. The functional STA014 chip partitioning
is described in Fig.1a and Fig.1b.
w.DJuly 2000
1/45
wThis is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
w(1) in order to enable SRS WOW algorithm a mandatory configuration fil e is required.


STMicroelectronics Electronic Components Datasheet

STA014B Datasheet

(STA014x) MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM AND SRS WOWO POSTPROCESSING CAPABILITY

No Preview Available !

STA014B pdf
STA014-STA014B-STA014T
Figure 1a. BLOCK DIAGRAM for TQFP44 and LFBGA64 package
TQFP44
SDI
SCKR
BIT_EN
34
36 SERIAL
INPUT
38 INTERFACE
27
DATA-REQ
SCK_ADC
LRCK_ADC
SDI_ADC
40
26 ADC
INPUT
24 INTERFACE
BUFFER
256 x 8
SDA
31
SCL
32
I2C CONTROL
PARSER
DSP BASED
MPEG L III
ADPCM
CORE
VOLUME
& TONE
CONTROL
OUTPUT
BUFFER
SYSTEM & AUDIO CLOCKS
25
RESET
15
XTI
13
XTO
22
TESTEN
12
FILT
Note: pin numbers refer to TQFP44 only.
GPIO
INTERFACE
PCM
OUTPUT
INTERFACE
GPSO
INTERFACE
35
STROBE
20
18
16
14
37 IODATA
[7:0]
39
41
43
42
SDO
44
SCKT
2
LRCKT
3
OCLK
4
GPSO_REQ
28
GPSO_SCKR
33
GPSO_DATA
D99AU1116A
Figure 1b. BLOCK DIAGRAM for SO28 package
SO28
SDI
SCKR
BIT_EN
5
6
7
SERIAL
INPUT
INTERFACE
28
DATA-REQ
SCK_ADC
LRCK_ADC
SDI_ADC
8
27 ADC
INPUT
25 INTERFACE
BUFFER
256 x 8
SDA
3
SCL
4
I2C CONTROL
PARSER
DSP BASED
MPEG L III
ADPCM
CORE
VOLUME
& TONE
CONTROL
SYSTEM & AUDIO CLOCKS
26
RESET
21
XTI
20
XTO
24
TESTEN
19
FILT
OUTPUT
BUFFER
9
PCM
OUTPUT
INTERFACE
10
11
12
SDO
SCKT
LRCKT
OCLK
D99AU1117A
2/45


Part Number STA014B
Description (STA014x) MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM AND SRS WOWO POSTPROCESSING CAPABILITY
Manufacturer ST Microelectronics
Total Page 30 Pages
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