TDA8376 datasheet(26/44 Pages) PHILIPS

26 / 44 page

1996 Jan 26

Philips Semiconductors

Objective speciﬁcation

I2C-bus controlled PAL/NTSC TV processors

TDA8376; TDA8376A

REFERENCE SIGNAL OUTPUT FOR TDA8395 (PIN 36); note 22

fref

reference frequency

−

4.43

−

MHz

V36(p-p)

output voltage amplitude

(peak-to-peak value)

0.2

0.25

0.3

output voltage level

PAL/NTSC identiﬁed

−

1.5

−

no PAL/NTSC identiﬁed;

SECAM (by TDA8395)

identiﬁed

−

5.0

−

I36

required current to stop PAL/NTSC

identiﬁcation circuit during SECAM

150

−−

µA

Control part

SATURATION CONTROL; note 6

SATCR

saturation control range

63 steps; see Fig.7

−−

CONTRAST CONTROL; note 6

CONCR

contrast control range

63 steps

−

tracking between the three channels

over a control range of 10 dB

see Fig.8

−−

0.5

BRIGHTNESS CONTROL

BRICR

brightness control range

63 steps; see Fig.9

−±0.7

−

RGB OUTPUT SIGNALS (PINS 19, 20 AND 21)

V19,20,21(p-p)

output voltage amplitude

(peak-to-peak value)

at nominal luminance input

signal, nominal contrast

and white-point

adjustment; note 6

tbf

2.0

tbf

at maximum white point

setting

−

3.0

−

VBWmax(p-p)

maximum voltage amplitude

(black-to-white)

note 23

−

2.6

−

at maximum white point

setting

−

3.6

−

VRED(p-p)

output voltage amplitude for the ‘red’

channel (peak-to-peak value)

at nominal settings for

contrast and saturation

control and no luminance

signal to the input (R

−Y,

PAL)

tbf

2.1

tbf

Vblank

blanking level at the RGB outputs

0.7

0.8

0.9

Ibias

internal bias current of NPN emitter

follower output transistor

−

1.5

−

available output current

−

output impedance

−

150

−Ω

CRbl

control range of the black-current

stabilization

nominal brightness and

white-point adjustment (with

respect to the measuring

pulse); Vblk = 2.5 V

−−

±1V

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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