saa7134hl NXP Semiconductors, saa7134hl Datasheet - Page 16

• Manufacturer Part Number: saa7134hl
• Description: Pci Audio And Video Broadcast Decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
SAA7134HL_4
Product data sheet
Figure 6
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).
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.
Fig 5. Basic TV capture, with NICAM or dual FM stereo decoding (Europe)
terrestrial
TV cable
S-video
shows an application extension with a hybrid TV tuner front-end and digital
CVBS
line-in
audio
or
MEMORY
SYSTEM
BRIDGE
SOUTH
ISA
Rev. 04 — 31 March 2006
TV TUNER AND
TV SOUND AND
DECODER FOR
CVBS
DMA MASTER
SAA7134HL
TV VIDEO
INTO PCI
IF-PLL
TV CAPTURE PCI CARD
digital video, digital audio, raw VBI, TS
SIF
BRIDGE
NORTH
FSB
I
2
C-BUS EEPROM
VENDOR ID
PCI-bus:
SYSTEM
PCI audio and video broadcast decoder
I
2
loop back
C-bus
analog
AGP
audio
cable
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
CACHE MEMORY
LOCAL MEMORY
VGA AND
CPU AND
SAA7134HL
SOUND
CARD
mhb991
16 of 51