
Copyright 2000. TeraLogic, Inc. All rights reserved worldwide. TeraLogic and the TeraLogic logo are registered trademarks of TeraLogic, Inc. Janus is a
trademark of TeraLogic, Inc. All other trademarks are properties of their respective owners and are acknowledged.
11/00 - 5K
TeraLogic, Inc.
1240
Villa Street Mountain View
CA 94041
tel
650.526.2000
fax
650.526.2006
www.teralogic.tv
i
c
APPLICATIONS
All Format Digital TV on PC
NTSC/Analog Broadcast on PC
Cable TV Reception on PC
Video Capture
Digital VCR on PC
SUPPORTING TERALOGIC PRODUCTS
Janus DTVPC Reference Design
HIGH PERFORMANCE DIGITAL VIDEO
DECODER
MP@HL MPEG-2 decoder
ATSC/DVB/ARIB/DIRECTV compliant
Decodes 1 HD or 4 SD streams
simultaneously
HIGH PERFORMANCE DISPLAY
PROCESSOR
Multiple display formats supported, includ-
ing 1920x1080i, 1280x720p, 704x480p
and 704x480i
PC display formats supported, including
1280x1024, 1024x768, 800x600, 640x480
Many nonstandard output and source
formats supported
Letterbox and pan-and-scan options for
displaying 16:9 video on 4:3 TVs and PCs
Multiple video services displayed on the
same screen supports viewing of multiplex
MEMORY CONTROLLER
64-bit SDRAM interface
Programmable clock generator
Up to 64 Mbytes addressing range
ACCELERATED 2-D GRAPHICS
Hardware BLT engine
Up to 32 bpp graphics in RGB space
Full alpha blend support
Hardware color expansion and reduction
PROGRAMMABLE TRANSPORT
DEMULTIPLEXER
ATSC/DVB/ARIB/DIRECTV
compliant
PCI BUS INTERFACE
32-bit interface
66 MHz or 33 MHz bus clock
PCI bus mastering capability
AUDIO PROCESSING
Provides audio rate buffer
Provides audio and video PTS
synchronization
Audio mix, cross-fade and attenuate
between sources
Six-channel audio input and output
IEC-958 formatted output supported
TECHNOLOGY
2.5V core, 3.3V I/O, 0.25
μ
CMOS
348-pin ball grid array package
services, picture-in-picture (PIP) and
picture-out-of-picture (POP) applications
Graphics overlay plane with up to 24-bits
per pixel and 8-bit alpha channel
Cursor plane with 32x32 pixel cursor with
4-bit index (16 colors with 8-bit alpha
blending)
Analog RGB or YCrCb output for HDTV
display or SD display in down-conversion
mode
16- or 24-bit digital HD video output
VIP 1.0 and VIP 2.0 port for interfacing to
PC graphics subsystem
FLEXIBLE FORMAT CONVERTER
High-quality scan conversions from ATSC
and NTSC source formats to many output
display formats
High quality up-conversion and down-
conversion of source video to selected
display format
NTSC VIDEO INTEGRATION
Video capture port for NTSC/PAL digital
video (CCIR656 compatible)
Simultaneous output in HD and 704x480i
supports analog VCR recording of off-air
programming
TL880
DTVPC Decoder
2D Graphics
32 bit engine
Anti-alias filter
Alpha blending
Memory 4/8/16 MB
PCI Bus
32
Memory Controller
PCI Controller
HD Transport
Stream
Digital Video
CCIR656
Audio In
VIP Port
Digital HD Video
RGB/YPbPr
Audio Out
CCIR656
SD Video
Display Processor
All ATSC formats
PC formats
Letterbox mode
Transport
Demultiplexer
ATSC
ARIB
DVB
DIRECTV
Video Scaler
19 tap H/V filters
Line doubler
High quality
up/down conversion
I to P conversion
Aspect ratio
conversion
Audio
Processor/
Mixer
24
3
6
6
6
Digital Video Decoder
MP@HL MPEG-2
Decodes all 18 ATSC formats
1 HD or 4 SD streams
Decodes DVD video
ATSC, DVB, ARIB, DIRECTV
compliant
TL880
TL880 BLOCK DIAGRAM