PHILIPS TDA8451A - Analog TV CCD delay line : weekend die-shot
TDA8451A replaces ultrasonic delay lines used previously. Analog TV transmitted color and luminance signals in sequence, so one needed to have a delay circuit to get full color image.
Die size 2903x2016 µm.
![](https://s.zeptobars.com/PHILIPS-TDA8451A.jpg)