TDA4887PS datasheet(18/68 Pages) PHILIPS

18 / 68 page

2001 Oct 19

Philips Semiconductors

Product speciﬁcation

160 MHz bus-controlled monitor video

preampliﬁer

TDA4887PS

δVo(n)

overshoot of output signal

pulse related to actual

output pulse amplitude

(pins 22, 19 and 16)

input rise time=1ns;

maximum colour signal

−−

undershoot of output signal

pulse related to actual

output pulse amplitude

(pins 22, 19 and 16)

input fall time = 1 ns;

maximum colour signal

−−

Crosstalk at signal outputs; channels 1, 2 and 3 (pins 22, 19 and 16)

αct(tr)(n)

transient crosstalk

suppression

(pins 22, 19 and 16)

input rise/fall time = 1 ns;

note 24

−−

αct(f)

crosstalk suppression by

frequency

f = 50 MHz; note 25

−−

f = 100 MHz; note 25

−−

Internal feedback reference voltage for DC coupling; see Fig.12 and note 26

Vref(DC)

internal reference voltage for

negative feedback polarity

(without brightness control)

FFH; FPOL = 0; BRI = 0

3.7

3.95

4.1

00H; FPOL = 0; BRI = 0

5.6

5.75

5.9

internal reference voltage for

negative feedback polarity

(with brightness control, see

also brightness control

∆V

DA(n))

FFH; FPOL = 0; BRI = 1;

maximum brightness

2.3

2.55

2.7

00H; FPOL = 0; BRI = 1;

minimum brightness

5.6

5.75

5.9

Output clamping, feedback inputs for DC coupling; FB/R1, FB/R2 and FB/R3 (pins 23, 20 and 17)

IFB/Rn(max)

maximum input current

(pins 23, 20 and 17)

during output clamping;

VHFB > 3.5 V; VFB/Rn = 0.5 V;

FPOL = 0

−500

−200

−60

Vbl(n)(ref)(min)

minimum reference black

level/minimum pedestal

black level

(pins 22, 19 and 16)

VHFB > 3.5 V; FPOL = 0

0.01

0.1

0.5

Vbl(n)(ref)(max)

maximum reference black

level/maximum pedestal

black level

(pins 22, 19 and 16)

VHFB > 3.5 V; FPOL = 0

2.0

2.8

4.0

∆V

bl(CRT)

black level variation at CRT

FPOL = 0; note 27

−−

200

∆V

bl(n)(lf)

black level decrease

between clamping pulses

related to maximum colour

signal (pins 22, 19 and 16)

FPOL = 0; fline = 60 kHz;

δ = 10%

−

0.1

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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