TDA8377A datasheet(39/72 Pages) PHILIPS

39 / 72 page

1997 Jul 01

Philips Semiconductors

Preliminary speciﬁcation

I2C-bus controlled economy PAL/NTSC

and NTSC TV-processors

TDA837x family

VBW(max)(p-p)

maximum signal amplitude

(black-to-white)

note 45

−

2.6

−

VWP(max)(p-p)

maximum signal amplitude at

maximum white point setting

(peak-to-peak value)

−

3.6

−

Vred(p-p)

output signal amplitude for the

‘red’ channel at nominal settings

for contrast and saturation

control and no luminance signal

to the input (R

− Y, PAL)

(peak-to-peak value)

tbf

2.1

tbf

∆V

blank

difference between blanking

level measuring pulse

0.7

0.8

0.9

tW(blank)

width of the video blanking pulse

when the HBL bit is active

TDA8375, TDA8377,

TDA8375A and

TDA8377A; note 46

14.4

14.7

15.0

µs

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

at Vbl = 2.5 V and nominal

brightness and white-point

adjustment (with respect to

the measuring pulse)

−−±1V

Vbl

black level shift with picture

content

note 4

−−

Vo(4L)

output voltage of the 4-L pulse

after switch-on

−

4.2

−

∆bl(T)

variation of black level with

temperature

note 4

−

1.0

−

mV/K

∆bl

relative variation in black level

between the three channels

during variations of

note 4

supply voltage (

±10%)

nominal controls

−−

saturation (50 dB)

nominal contrast

−−

contrast (15 dB)

nominal saturation

−−

brightness (

±0.5 V)

nominal controls

−−

temperature (range 40

°C)

−−

S/N

signal-to-noise ratio of the

output signals

RGB input; note 47

−−

CVBS input; note 47

−−

Vr(p-p)

residual voltage at the RGB

outputs (peak-to-peak value)

at fosc

−−

at 2fosc plus higher

harmonics in RGB outputs

−−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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