Philips Semiconductors
Integrated multistandard comb filter
Objective specification
TDA9181
SYMBOL
FSCres(YC)
αct
SUPcomb(Y)
Ro
ZL
PARAMETER
FSC residue in YC mode
(Vrms/1 V)
crosstalk suppression at
vertical transient black ↔
multi-burst [1 V/V (p-p)]
suppression (comb depth)
with respect to luminance
band-pass nearest to fSC
output resistance
load impedance
CONDITIONS
MIN.
f = fSC; fSC at FSC input; −
note 2
f = 2 × fSC; 2 × fSC at FSC −
input
vertical transition active 26
video ↔ vertical blanking;
Figs 6 and 7; note 5
COMB mode;
PAL B, G, H, D and I;
note 2 and Fig.8
f = fSC
30
f = 2----8---23---8-.-7--3--5-.--7-–--5---7---4-- × fSC −
f = 2----8---23---8-.-7--3--5-.--7-+--5---7----4- × fSC −
COMB mode; PAL M;
note 2 and Fig.9
f = fSC
30
f = 2----2---27---2-.-2--7--5-.--2-–--5---5---9-- × fSC −
f = 2----2---27---2-.-2--7--5-.--2-+--5---5----9- × fSC −
COMB mode, PAL N;
see note 2 and Fig.10
f = fSC
30
f = 2----2---29---2-.-2--9--5-.--2-–--5---5---9-- × fSC −
f = 2----2---29---2-.-2--9--5-.--2-+--5---5----9- × fSC −
COMB mode, NTSC M;
see note 2 and Fig.11
f = fSC
30
f = 2----2---27---2-.-5--7---.–--5---5---9-- × fSC
−
f = 2----2---27---2-.-5--7---+.--5---5---9-- × fSC
−
−
−
TYP.
−
−
−
−
10
10
−
10
10
−
10
10
−
10
10
−
−
MAX.
−60
−60
−
−
−
−
−
−
−
−
−
−
−
−
−
500
15
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
pF
2000 Nov 22
10