Overview
The LC89915 and LC89915M are delay lines that produce a 1 H delayed signal for NTSC format with an external low-pass filter. It can also provide 1 H delayed signal for PAL format by changing the number of its CCD Shift register.

Functions
• 453.5 bits (switchable to 456.5 bits) CCD shift register
• Auto-bias circuit
• Sync tip clamping circuit
• Sample-and-hold circuit
• Delay time switching circuit