STA016A STMicroelectronics, STA016A Datasheet - Page 3

• Manufacturer Part Number: STA016A
• Description: DECODER AUDIO MPEG 2.5 64-TQFP
• Manufacturer: STMicroelectronics
• Type: Audio Decoderr

Specifications of STA016A

• Applications: Multimedia
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply, Analog: -
• Voltage - Supply, Digital: -

3
The device can decode/process data coming from three possible sources, as showed in Figure 2:
3.1 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
Table 4. MPEG Sampling Rates (KHz)
Figure 3. Block Diagram
The basic functions of the device can be fully operated via the I
used to move huge amount of data this fast and flexible interface can achieve transfer rates up to 5 Mbit/s.
The embedded DSP firmware implements all the layers required to decode a standard data CD, as shown in
the Figure 4:
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.
I
through the DSP based volume and tone controls:this BYPASS mode can avoid the use of additional
D/A converters or postprocessing units.
2
S input interface: this interface can be used to process an external audio source (tuner, for instance)
OVERVIEW
CD_LRCK
BS_LRCK
CD_BCK
BS_BCK
CD_SDI
BS_SDI
DREQ
LRCKI
RQST
BCKI
2
SDA
STB
SCL
SDI
S interface. This results in no need for an external audio processor.
MPEG 1
44.1
48
32
CDDSP
I
2
SDI
I
I/F
I/F
S IN
I/F
I/F
2
C
DETECT.
- ISO9660 + JOLIET
- BCI
- MP3
SYNC
REG BANK
MMDSP
I
CORE
2
C
CDROM DECODER (C3)
INPUT SELECTOR
DESCRAM.
MPEG 2
22.05
24
16
OSCK
PLL
PCM OUTPUT
2
BUFFER
C bus. Besides that the GPSO interface can be
ECC/EDC
XTI
OSC
XTO
SECTOR
BUFFER
I
2
GPSO
S OUT
I/F
I/F
MPEG 2.5
D04AU1565
11.025
12
8
BCKO
SDO
LRCKO
GPSO_CK
GPSO_SDO
GPSO_REQ
STA016A
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