ICS290G18L

General Description

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.

Features

• 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: 30 Hz, 29.97 Hz, 25 Hz, 24 Hz
– 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