Data Brief
For further information contact your local STMicroelectronics sales office.
September 2008 Rev 1 1/6
6
STi7141
HD decoder for interactive digital cable set-top box
Features
■Three integrated cable receiver / demodulators
■DOCSIS/EuroDOCSIS 2.0 cable modem with
support for DOCSIS 3.0 down-stream channel-
bonding
■SCTE-55 part 1 and 2 physical layer support for
CableCARDTM
■Dual Core archi tectur e prov idi ng more than
1600 DMIPS of pro cess ing perf or man ce
■Linux®, Windows® CE and OS21 compatible
■Firmware based multi-standard HD video
decoder for:
– H.264 / MPEG-4 AVC HP@L4
–MPEG-2 MP@HL
–SMPTE VC-1 AP@L3
■Firmware based multi-standard audio processor
for:
– MPEG-1 I/II/III (MP3), MPEG-2 ACC (AAC-
LC)
– MPEG-4 HE AAC (aacPlus)
– Dolby® Digital (AC-3), Dolby® Digital Plus
■Firmware based PTI (programmable transport
stream proc es sor)
■DVR support, and trick play modes
■Dual display HD and SD
■2D blitter graphics with extention to pseudo 3D
and video mosaic support
■Multi-level layered security
■Interfaces include: USB, Ethernet, HDMITM,
eSATA.
Description
The STi7141 is a highly integrated SoC (system-
on-chip) designed to meet the demanding needs of
the interactive cable set top box market place. The
STi7141 integrates all the major system functions
into a single device, and provides world leading,
multi-layer, advanced security technologies to
protect valuable video and audio assets.
LMI
DEI
S/PDIF
2-ch
PCM In Digital
Video In
DENC
7x
SSC/I2C
3x
UARTs
ILC
2 x I/F
SmCard
GPIOs
PWM
IR Tx/Rx
UHF Rx
STBus
Main video
display
Main/Aux
COMPOSITOR
Analog Video
Output TMDS
USB
Clock Gen
and
8-ch
PCM Out STB peripherals
and external interrupts
System
Services
Aux video
display
Audio Decoder
Interfaces
Audio
DACs
1.1
eSATA
Interface
16
SDRAM
DDR2
ST231
ST231
2x
MAC
GMII / MII
EMPI
Digital Video Output
USB
2.0
3x
FDMA
Out
Resets /
Clocks /
Modes
Serial ATA
HDD, int/ext
DVP
(HD/SD)
PCI
DVO
HDMI
VTG0
Protected JTAG
Players and
Comms
SPI
Serial
FLASH
EMI/MPX/PCI
HD
Ethernet
ST40-300
Mailboxes
64K SRAM
Dual Core
QAM/
FEC QAM/
FEC QAM/
FEC
EMI
DOCSIS 2.0+ MAC
DSMA USMA
TSMerger
Display
VTG1
Router and
Formatter
Cursor 3xGDP
PTI
MCARD
6DACs
Interface
PTI
RC
Blitter
USB
1.1
USB
2.0
USB USB USB USB
Analog
Audio
Video Decoder
Digitized Cable Channels
www.st.com
Applications STi7141
2/6
1 Applications
The STi7141 is a low-cost, networkable, HDTV set-top box device, with an embeded
DOCSIS cable modem capable of providing DSG (DOCSIS set-top gateway), interactive
multimed ia and internet access for the digital cable market.
The STi7141 provides an enhanced performance, lower-cost replacement to the two-chip
solution STv0498 and STi7109.
The following figures describe typical set-top box applications based on the STi7141. These
applications maintain a high degree of software compatibility with set-top box designs based
on the STv0498 and STi7109.
Figure 1. ST i7 141 appli catio n: HD input SD disp lay c able set-top box pla tform with DO CSIS 2.0
DDR 2 DDR 2
Filter
Opto
Opto
Ch 3/4
S-Vid
Comp
S/PDIF
Audio
USB 2
IR
RF
Silicon
tuner
Silicon
tuner
MoCA
MAC
and PHY
Ethernet
PHY
Secure
micro
Cable
MSCC
RJ45
USB 2
USB
PGA
FAT1
FAT2
RDC
GMII
MSCC
MII
USB 2.0
USB 1.1
USB 1.1
LMI LMI
Composite
S-Video
Audio
S/PDIF
USB 2.0
IR
Power supply
components Power on
reset
Flash
STi7141
STv0130
EMI
STi7141 Applications
3/6
Figure 2. ST i7 141 application: HD in put HD di spla y ca ble set-t op bo x pla tform with DOCSIS 2.0
DDR 2 DDR 2
Opto
Opto
S-Vid
eSATA
S/PDIF
Audio
USB 2
IR
1394
Silicon
tuner
Silicon
tuner
MoCA
MAC
and PHY
Ethernet
PHY
Secure
micro
Cable
MSCC
RJ45
USB 2
USB
PGA
FAT1
FAT2
RDC
GMII
MSCC
MII
USB 2.0
USB 1.1
USB 1.1
LMI LMI
CVBS
S-Video
Audio L/R
S/PDIF
USB 2.0
IR
Power supply
components Power on
reset
Flash
STi7141
HDMI
CVBS
YPrBr
1394 LLC
and PHY
A/V
eSATA
YPrPb
HDMI
Silicon
tuner FDC
STv0130
EMI
Ordering information STi7141
4/6
2 Ordering information
Table 1. Ordering information
Order code Packaging
STi7141 ZWA PBGA 580 + 100 balls, 35 x 35 mm
STi7141 Revision history
5/6
3 Revision history
Table 2. Document revision history
Date Revision Changes
09-Sep-2008 1 Initial release
STi7141
6/6
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