TC90A49P/F

2001-03-06 10/17

000 : (+0.0) to 111 : (+1.5)

PDSOFF : Switches pedestal clip ON / OFF after vertical edge enhancement circuit.

0 : ON

1 : OFF

CB : Sets Color Killer mode to ON / OFF

0 : Y signal comb function ON

1 : Y signal comb function OFF (Same composite signal is output from Y and C pins.)

0000 : 4 LSB (internal set of IC to 4 LSB) to 1111 : 64 LSB (internal set of IC to 64 LSB)

0 : 1.5 dB

1 : 3.0 dB

0 : ON

1 : OFF

00 : 0 LSB to 11 : 3 LSB

TRAP : Sets C output 1 / 2 fsc trap ON / OFF.

0 : ON

1 : OFF

CHTRAP : Sets C output trap gain.

0 : −24 dB

1 : −16 dB

CBPF : Switches C output BPF ON / OFF (BPF characteristic after dynamic comb filter output).

0 : Narrow band

1 : Wide band

ENHOFF : Sets KILLER pin function.

0 : Comb ON / OFF

1 : Comb ON / OFF and vertical edge enhancement ON / OFF

Signal level inside the IC

The sync tip of the input video signal is clamped to an internal level equivalent to 6 LSB. When a signal

amplitude of 1.0 V is equivalent to 140 IRE, 100% white status becomes an internal level of 209 LSB. At this