The is an integrated baseband delay line circuit. It provides a delay 64 ms for the color difference signals, ±(R-Y) and ±(B-Y), in multi-standard TVs.
D One line delay time, addition of delayed and nondelayed output signals
D Line-locked by the sandcastle pulse D No crosstalk between SECAM colour carriers
Vref Clamping Line memory Shift register Clamping
Symbol VDD1 GND1 VO(R-Y) VO(B-Y) Rref Vi(B-Y) NC Vi(R-Y)
Function Supply voltage for digital part Not connected Ground for digital part Not connected Sandcastle pulse input Not connected