SAA7134 Philips Semiconductors, SAA7134 Datasheet - Page 19

• Manufacturer Part Number: SAA7134
• Description: PCI audio and video broadcast decoder
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Figure 6 shows an application extension with a hybrid
TV tuner front-end and digital terrestrial channel decoding
for DTV-T.
The single-conversion tuner TD1316 provides two
dedicated IF signals for the analog IF-PLL (TDA9886) and
the digital IF-PLL (TDA9889). The CVBS (video) and SIF
(sound) output signals of the analog IF-PLL can be routed
to one of the video inputs and the SIF input of the
SAA7134HL for analog TV decoding. On the other hand,
the 2nd IF signal of the digital IF-PLL is fed directly to the
interface of the channel decoder (TDA10045), which
decodes the signal into a digital DVB-T Transport
Stream (TS).
2002 Dec 17
handbook, full pagewidth
PCI audio and video broadcast decoder
Fig.6 Hybrid TV capture board for digital TV (DVB-T) and analog stereo TV reception.
DVB terrestrial
or terrestrial
ATV cable
S-video
CVBS
line-in
audio
and
MEMORY
SYSTEM
BRIDGE
SOUTH
CVBS
IF
TV TUNER
ISA
ANALOG IF-PLL
TV SOUND AND
DECODER FOR
DMA MASTER
SAA7134HL
SIF
TV VIDEO
HYBRID TV CAPTURE PCI CARD
INTO PCI
TS
IF
digital video, digital audio, raw VBI, TS
DIGITAL
IF-PLL
BRIDGE
NORTH
FSB
I
19
2
C-BUS EEPROM
VENDOR ID
PCI-bus:
The SAA7134HL captures this TS via the dedicated
peripheral interface into the configurable internal FIFO for
DMA into the PCI memory space.
The packet structure as decoded by the TDA10045 is
maintained in a well-defined buffer structure in the system
memory, and therefore can easily be sorted
(de-multiplexed) by the CPU for proper MPEG decoding.
The Broadcast Driver Architecture (BDA) for Windows
operating systems supports this type of hybrid TV capture
application, sharing one capture board for analog and
digital TV reception.
I
SYSTEM
2
C-bus
analog audio
DECODER
CHANNEL
loop back
DVB-T
cable
AGP
CACHE MEMORY
LOCAL MEMORY
VGA AND
CPU AND
SOUND
CARD
MHB992
SAA7134HL
Product specification