TDA9183T View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA9183T Datasheet PDF : 24 Pages
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Philips Semiconductors
Integrated NTSC comb filter
Objective specification
TDA9183
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
SUPcomb(chrom)
suppression (comb depth) COMB mode; note 2
with respect to chrominance and Fig.7
band pass at f = fSC
f = 2---2-2--2-7---7-.-5-- × fSC
30
−
−
f = -2---22---7-2---7-–--.--5-5---9-- × fSC
30
−
−
f = 2----2-2--7-2---7-+---.-5-5---9-- × fSC
30
−
−
Ro
output resistance
ZL
load impedance
−
−
500
−
−
15
Notes
1. The pulse should fall inside the line-blanking interval, after the rising edge of the synchronizing pulse.
2. fSC = colour subcarrier frequency; fSC = 3.579545 MHz for the NTSC M system.
3. 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 NTSC M: 100% amplitude FCC multi-burst (see Fig.4).
6. Test signal for NTSC M: 100% white 75% amplitude FCC colour bar.
UNIT
dB
dB
dB
Ω
pF
handbook, full pagewidth
1
(V)
0.5 1.5 2.0 3.0 3.58 4.1 MHz
0.65
0.45
0.30
0.15
0
MGT522
Fig.4 100% amplitude FCC multi-burst.
2000 Nov 30
11
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