SAA7130 Просмотр технического описания (PDF) - Philips Electronics

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SAA7130

PCI video broadcast decoder

Philips Electronics 

Philips Semiconductors

SAA7130HL

PCI video broadcast decoder

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).

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.

ATV cable

or terrestrial

and

DVB terrestrial

HYBRID TV CAPTURE PCI CARD

TV TUNER

IF DIGITAL

IF-PLL

IF

ANALOG IF-PLL

DVB-T

CHANNEL

DECODER

CVBS AF TS

CVBS

S-video

audio

line-in

DECODER FOR

TV VIDEO

DMA MASTER

INTO PCI

SAA7130HL

analog audio

loopback

cable

I 2C - bus

I2C-BUS EEPROM

SYSTEM

VENDOR ID

PCI-bus:

digital video, raw VBI, TS

SOUND

CARD

SOUTH

BRIDGE

NORTH

BRIDGE

AGP

VGA AND

LOCAL MEMORY

ISA

SYSTEM

MEMORY

FSB

CPU AND

CACHE MEMORY

mhc173

Fig 6. Hybrid TV capture board for digital TV (DVB-T) and analog TV reception

SAA7130HL_4

Product data sheet

Rev. 04 — 11 April 2006

© Koninklijke Philips Electronics N.V. 2006. All rights reserved.

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