TDA8310A Datasheet, PDF (17/24 Pages) NXP Semiconductors – PAL/NTSC colour processor for PIP applications

Philips Semiconductors
PAL/NTSC colour processor
for PIP applications
Product specification
TDA8310A
20. The crystal pins which are not used must be connected to the positive supply line via an 8.2 kΩ resistor. It is also
possible to connect the non-used pins together and use a resistor with a value of 8.2 kΩ divided by the number of
pins which are not used.
21. When this pin is left open-circuit the HUE control is set to the nominal value.
22. When one or more pins have to be connected to the positive supply line the total current must be limited to 40 µA.
This can be achieved by connecting these pins together and connecting them to a positive supply line via a 100 kΩ
resistor. When separate resistors are used a resistor with a higher value must be used so that the total current is
limited to the required level.
23. This output signal value is obtained when the CVBS or Y input signal at pins 17 and/or 20 has an amplitude of 0.7 V
(black-to-white value).
24. The output buffer consists of a combination of a PMOS and an NMOS. The maximum output impedance in the low
state can be calculated by dividing the maximum output voltage (for this parameter 0.9 V) by the specified current.
For the high state this resistance can be calculated by dividing the difference between the maximum and minimum
output voltage by the specified current. The output impedance is independent of the value of the output current.
25. These output signal values are obtained for a colour bar input signal with 75% saturation.
1996 Jan 25
17