Highly integrated DTV front-end, with

IEEE 1394/Device Bay transport stream output

In the fast moving digital broadcast market, where TV and PC

technologies are converging, the high performance IEEE 1394 bus is

now the established high-speed, real-time true plug-and-play serial bus

system. As its popularity grows, it is becoming the accepted standard for

connecting a variety of digital consumer electronics equipment to each

other, as well as to multimedia PCs and workstations. Drawing on

Philips Semiconductors’ acknowledged expertise in digital TV systems

and IEEE 1394 interface devices, this reference design combines these

technologies in the emerging Device Bay format, creating a simple

high performance DTV receiver for PC and other IEEE 1394-based

applications.

Based around a proven 8-VSB (Vestigial SideBand) demodulator with

on-chip digital tuner AGC control, used in the established ‘Coney’

PCI-based ATSC/NTSC PC-TV board, this reference design also

incorporates Philips’ advanced IEEE 1394 devices: a high-performance

Link layer controller with isochronous operation and embedded

IEC61883 support; and a three-port Physical layer interface. These

high-speed devices enable the digital TV signal (MPEG2 transport

stream) to be transferred over the IEEE 1394 bus at 200 Mbits/s, output

via either 1394 port or Device Bay connections.

This reference design enables platform providers to concentrate on

developing the user interfaces and applications that will differentiate

them in a market where competition is very fierce. A licence is available,

royalty-free, from Philips Semiconductors to use the PCB layout

(Gerber) files as well as the original design schematics.

Committed to flexible digital TV and PC/TV solutions,

Philips Semiconductors has developed a complete

DTV receiver reference design based on proven ICs from

other reference designs. It is laid out according to Device Bay

physical specifications and allows a DTV transport stream to be

carried over Device Bay or IEEE 1394 connections.

Applications

•

Digital ATSC-compliant terrestrial reception

•

Personal computers with digital television capabilities

•

Modular digital home entertainment systems

Highly featured board

•

Outputs a DTV transport stream over IEEE 1394

or Device Bay connections

•

Reference design laid out according to

Device Bay physical specifications

•

Single-chip TDA8960 ATSC-compliant 8-VSB

demodulator and decoder front-end

•

PDI1394P11 IEEE 1394-1995 Physical layer controller

supports data transfer at up to 200 Mbits/s

•

PDI1394L11 IEEE 1394-1995 A/V Link layer

controller with hardware support for IEC61883

•

TDA9829 IF downconversion for VSB

IEEE 1394/Device Bay

ATSC DTV receiver

Reference design

MSD052

TUNER

IF

ADC

1394

PHYSICAL

LAYER

1394 LINK

LAYER

CONTROLLER

DATA

FORMATTING

& CONTROL

µC

80C51

EEPROM

64k8

SRAM

64k8

1394

PORT

1394

POWER

DEVICE BAY

CONNECTORS

POWER

ENABLE

LOGIC

1394

PHYSICAL

LAYER

8-VSB

DEMODULATOR