TDA8376 datasheet(25/44 Pages) PHILIPS

25 / 44 page

1996 Jan 26

Philips Semiconductors

Objective speciﬁcation

I2C-bus controlled PAL/NTSC TV processors

TDA8376; TDA8376A

DEMODULATORS (PINS 29 AND 30)

V30(p-p)

−(R−Y) output voltage amplitude

(peak-to-peak value)

note 21

−

0.525

−

V29(p-p)

−(B−Y) output voltage amplitude

(peak-to-peak value)

note 21

−

0.675

−

gain ratio between both

demodulators G(B

−Y) and G(R−Y)

1.60

1.78

1.96

∆V

spread of voltage amplitude ratio

PAL/NTSC

note 2

−1

−

output impedance

−(R−Y)/−(B−Y)

output

note 2

−

500

−Ω

bandwidth of demodulators

−3 dB; notes 7 and 21

−

650

−

kHz

V29,30(p-p)

residual carrier output

(peak-to-peak value)

f=fosc; −(R−Y) output

−−

5mV

f=fosc; −(B−Y) output

−−

5mV

f=2fosc; −(R−Y) output

−−

5mV

f=2fosc; −(B−Y) output

−−

5mV

V30(p-p)

H/2 ripple at

−(R−Y) output

(peak-to-peak value)

−−

∆V

o/∆T

variation of output voltage amplitude

with temperature

note 2

−

0.1

−

%/K

∆V

o/∆VP

variation of output voltage amplitude

with supply voltage

note 2

−−

±0.1

ϕe

phase error in the demodulated

signals

−−

±5

deg

COLOUR DIFFERENCE MATRICES IN CONTROL CIRCUIT

PAL or (SECAM mode with TDA8395);

−(R−Y) and −(B−Y) not affected

−Y)/(R−Y) ratio of demodulated signals

−−0.51

±10%

−

−Y)/(B−Y) ratio of demodulated signals

−−0.19

±25%

−

NTSC mode; the colour-difference matrix results in the following signals (nominal hue setting)

−(B−Y)

−(B−Y) signal

−(B−Y)

−(R−Y)

−(R−Y) signal

1.39(R

−Y) − 0.07(B−Y)

−(G−Y)

−(G−Y) signal

−0.46(R−Y) − 0.15(B−Y)

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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