STM5105
Low-cost interactive set-top box decoder
DATA BRIEF
DESCRIPTION
STMicroelectronics sets a new standard for
perfomance, price and integration in the single
chip MPEG-2 set-top box decoder market with the
introduction of the STM5105.
This highly integrated solution targets mass
market STBs, offers increased performance over
earlier devices, and includes many features to
further reduce costs, including a unified memory
architecture.
The STM5105 features the ST20 CPU that is
standard across the OMEGA range but boosts the
clock speed to 200 MHz which, when combined
with the 2D graphics engine, gives the new device
outstanding graphics performances.
Targeting low-cost, single tuner STB applications,
the STM5105鈥檚 DDR memory interface both
reduces system costs and minimises overall
system latency, ensuring the new device can
support the most demanding interactive TV
applications and middlewares.
The integration of VCXO and audio DACs ensures
that manufacturers using the STM5105 cut their
bill of materials and significantly simplify board
design and assembly.
Figure 1. STM5105 low-cost interactive set-top box
STM5105 is supplied in either 24 mm x 24 mm
LQFP216 or 23 mm x 23 mm BGA package.
xxxx
stream in
STV0299
and STB6000
STV0299
tuner
and STB6000
tuner
STV0297
QAM demodulator
STV0297
+ tuner
QAM demodulator
+ tuner
DRAM
IR
RX/TX
Audio
buffer
OR
STM5105
Video
buffer
STV0360
COFDM
STV0360
+ tuner
COFDM
+ tuner
Transport
Smart
card
NOR
Flash
Rev. 1
March 2005
1/3
1
2
3
