2000 Nov 22

13

Philips Semiconductors

Objective specification

Integrated multistandard comb filter

TDA9181

Notes

1. The pulse should fall inside the line-blanking interval, after the rising edge of the synchronizing pulse.

the NTSC M system.

3. For PAL B, G, H, D and I: with respect to 567.5 colour subcarrier periods (equals 128.00

µs) due to 2H delay in the

comb filter. For PAL M: with respect to 454.5 colour subcarrier periods (equals 127.11

µs) due to 2H delay in the

comb filter. For PAL N: with respect to 458.5 colour subcarrier periods (equals 128.00

µs) due to 2H delay in the

comb filter. For NTSC M: with respect to 227.5 colour subcarrier periods (equals 63.556

µs) due to 1H delay in the

comb filter.

4. With respect to the voltage level during clamping.

5. Test signal for PAL B, G, H, D, I and N: CCIR-18 multi-burst (see Fig.4). For PAL M and NTSC M: 100% amplitude

FCC multi-burst (see Fig.5).

6. Test signal for PAL B, G, H, D, I and N: 100/0/75/0 EBU colour bar. For PAL M and NTSC M: 100% white 75%

amplitude FCC colour bar.

handbook, full pagewidth

MGT521

(V)

0.5

1.0

2.0

3.8

4.8

5.8

MHz

1

0

0.30

0.15

0.44

0.45

0.65

0.86

Fig.4 CCIR-18 multi-burst.