SAA7130 Philips Semiconductors, SAA7130 Datasheet - Page 19

• Manufacturer Part Number: SAA7130
• Description: PCI 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 AUD
(audio, mono) output signals of the analog IF-PLL can be
routed to one of the video inputs and the audio (left or right)
input of the SAA7130HL for analog video decoding and
direct audio streaming to the sound card. 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 Apr 23
handbook, full pagewidth
PCI video broadcast decoder
DVB terrestrial
or terrestrial
Fig.6 Hybrid TV capture board for digital TV (DVB-T) and analog TV reception.
ATV cable
S-video
CVBS
line-in
audio
and
MEMORY
SYSTEM
BRIDGE
SOUTH
CVBS
IF
TV TUNER
ISA
ANALOG IF-PLL
DECODER FOR
DMA MASTER
SAA7130HL
TV VIDEO
HYBRID TV CAPTURE PCI CARD
INTO PCI
AF
TS
IF
DIGITAL
IF-PLL
digital video, raw VBI, TS
BRIDGE
NORTH
FSB
I
2
19
C-BUS EEPROM
VENDOR ID
PCI-bus:
The SAA7130HL 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
2
SYSTEM
C-bus
analog audio
DECODER
CHANNEL
loop back
DVB-T
cable
AGP
CACHE MEMORY
LOCAL MEMORY
VGA AND
CPU AND
SOUND
CARD
MHC173
SAA7130HL
Product specification