TDA2506

The TDA2506 converts color-difference signals into sequential, frequency modulated signals according to the SECAM system. The feature of TDA2506 are as follows: (1)chrominance processor; (2)vertical identification signal generator; (3)timing pulse output to TAD2507; (4)sample and hold circuit for control signal from TAD2507; (5)no adjustments of external components required.

The absolute maximum ratings of the TDA2506 are: (1)supply voltage: 13.2V max; (2)total power dissipation: see figs 5 and 6; (3)operating ambient temperature range: -25 to + 70; (4)storage temperature range: -55 to + 150.

The following is about the electrical characteristics of TDA2506: (1)supply voltage: 4.75V min, 5V typical and 7V max; (2)supply current: 30mA min, 45mA typical and 60mA max; (3)reference voltage: 3.4V min, 3.55V typical and 3.7V max; (4)bias current: 10A max; (5)input resisitance: 200k min; (6)input pulse amplitude: 2.5V min; (7)timing pulse output(high level): 4.7V min; (8)intermediate level(low level): 0.4V min; (9)maximum voltage level: V22+0.5V min, V22+0.7V typical and V22+0.8V max; (10)voltage level during line blanking: V22-7mV min, V22 typical and V22+7mV max; (11)input bias current: 1.5A min.