
ZOOM
The CL680 incorporates hardware to enable stills or
motion pictures to be magnified in a selected area of
the screen.
GRAPHICS FEATURES
The CL680 incorporates an advanced graphics engine
that allows VideoCD player designers to display player
status on the television screen and to support graphic
enhanced CD formats such as CD-G.
ON-SCREEN DISPLAY (OSD)
The CL680 provides the ability to display user-defined
graphics (stored in ROM) over real-time video. The
CL680 allows graphics to be displayed anywhere on
the TV screen, and it supports both run-length com-
pressed and bitmap images. To ease the development
of OSD characters, C-Cube provides a font-conversion
utility, which allows designers to easily run-length
encode any bitmap font for storage in the CL680's
ROM.
CD-G SUPPORT
The CL680 provides on-chip support for the CD-G (CD
audio plus graphics) format extension to the Red Book
(Compact Disc Digital Audio) standard.
INTEGRATION FEATURES
The CL680 family is designed to reduce system cost by
incorporating more VideoCD functions and providing
glueless interfaces to other system elements.
INTEGRATED DIGITAL NTSC/PAL ENCODER
The CL680 includes a digital NTSC/PAL encoder with
S-Video (Y/C) and composite outputs (9-bit resolution)
and excellent signal separation for a superior picture.
IMPROVED DRAM USAGE
The CL680 supports PAL and NTSC including high-
resolution stills with only 4 Mbits of 70-ns DRAM.
More efficient use of DRAM provides twice as much
DRAM space to store user-defined OSD.
INTELLIGENT INTERFACE DESIGN
The CL680 provides glueless interfaces to the CD-DSP,
DRAM, ROM, and audio DACs. Support for all
VideoCD and MPEG standards (including Video CD 2.0
and 1.1, Karaoke CD 1.0 and CD-I Green Book) means
that no external parsing is required.
PACKAGING
The CL680 requires a design-friendly three-volt supply
and consumes less than one watt during decoding. In
addition, it automatically reduces power consumption
when decoding CD-DA. The CL680 can accept 5-volt
inputs.
Like the CL48x family, the CL680 is packaged in a
128-pin small-outline PQFP (18mm x 18mm body
size).
C-Cube Microsystems