Integrated
Circuit
Systems, Inc.
ICS2008B
SMPTE Time Code Receiver/Generator
General Description
Features
The ICS2008B, SMPTE Time Code Receiver / Generator
chip, is a VLSI device designed in a low power CMOS
process. This device provides the timing coordination for
Multimedia sight and sound events. Although it is aimed at
a PC Multimedia environment, the ICS2008B is easily
integrated into products requiring SMPTE time code
generation and/or reception in LTC (Longitudinal Time
Code) and/or VITC (Vertical Interval Time Code) formats
and MTC (MIDI Time Code) translation.
•
Meets SMPTE VITC Specifications
•
Meets SMPTE and EBU LTC Specifications
•
Time Code Burn-in Window
– Programmable position, size and character attributes
•
LTC edge rate control
– Conforms to EBU Tr and Tf Specifications
•
Internal and external sync sources
– Genlock to video or house sync inputs
– Improved video timing lock during VCR pause and
shuttle modes
– Internally generated timing from oscillator input
– External click input
– Internal Timer
Allows 1/4 Frame MIDI Time Code Messages
•
LTC and VITC Generators
– Real Time SMPTE Rates:
30Hz, 29.97Hz, 25Hz, 24Hz
– Time Code Modes
Drop Frame and Color Frame
– VITC can be inserted on two lines from 10-40
(SMPTE specifies lines 10-20)
– Jam Sync, freewheeling, error bypass/correction,
and plus-one-frame capability
•
LTC Receiver
– Synchronize bit rates from 1/30th nominal to 80X
nominal playback speed.
•
VITC Receiver
– Reads code from any or all selected scan lines.
– VITC search mode, will search through VBI lines until
VITC is found.
•
New UART frequency of 38.4 K for tape transport control
Taking its input from composite video, S-Video, or an
audio track, the ICS2008B can read SMPTE time code in
VITC and LTC formats. Time code output formats are LTC
and VITC. All are available simultaneously. A UART is
provided for the user to support MTC or tape transport
control.
The processor interface is compatible with the IBM PC and
ISA bus compatible computers and is easily interfaced to
other processors and micro-controllers.
The ICS2008B is an improved version of the ICS2008,
with additional features and capabilities.
ICS2008 ICS2008B 2008 2008B
Block Diagram
ICS2008B Rev E 6/07/06
ICS reserves the right to make changes in the device data identified in this publication without
further notice. ICS advises its customers to obtain the latest version of all device data to verify
that any information being relied upon by the customer is current and accurate.
