參數(shù)資料
型號(hào)： TDA4887PS
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 160 MHz bus-controlled monitor video preamplifier
中文描述： 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24
封裝： 0.400 INCH, PLASTIC, SDIP-24
文件頁(yè)數(shù)： 15/68頁(yè)
文件大?。?/td> 425K
代理商： TDA4887PS
2001 Oct 19
15
Philips Semiconductors
Product specification
160 MHz bus-controlled monitor video
preamplifier
TDA4887PS
Clipping of negative input signals (measured at signal outputs)
V
clipp
offset during sync clipping
related to maximum colour
signal
V
i(n)
= V
i(n)(clamp)
;
sync amplitude = 0.3 V;
note 10; see Fig.3
0.6
1.2
%
Contrast control;
see Fig.8 and note 11
δ
C
colour signal related to
maximum colour signal
FFH (maximum)
00H (minimum)
FFH to 40H; note 12
0
45
0
0.5
dB
dB
dB
G
track
tracking of output colour
signals of channels 1,
2 and 3
Fast blanking (pin 1) and OSD signal insertion; channels 1, 2 and 3 (pins 2, 3 and 4);
note 13
V
FBL
fast blanking input signal
(pin 1)
no video signal blanking;
OSD signal insertion
disabled
video signal blanking;
OSD signal insertion
enabled
V
FBL
> 1.7 V
no internal OSD signal
insertion
internal OSD signal
insertion
10 to 90% amplitude; pulse
leading edge = 1.2 ns/V
90 to 10% amplitude; pulse
falling edge = 1.2 ns/V
identical pulses at fast
blanking input (pin 1) and
OSD signal inputs
(pins 2, 3 and 4)
identical pulses at fast
blanking input (pin 1) and
OSD signal inputs (pins 2, 3
and 4)
pulse with 1.2 ns/V at OSD
signal inputs (pins 2, 3
and 4)
0
1.1
V
1.7
V
P
V
V
OSDn
OSD input signal
(pins 2, 3 and 4)
0
1.1
V
1.7
V
P
V
t
r(OSDn)
rise time of OSD colour
signals (pins 22, 19 and 16)
fall time of OSD colour
signals (pins 22, 19 and 16)
width of (negative going)
OSD signal insertion glitch,
leading edge
(pins 22, 19 and 16)
width of (negative going)
OSD signal insertion glitch,
trailing edge (pins 22, 19
and 16)
overshoot/undershoot of
OSD colour signal related to
actual OSD output pulse
amplitude (pins 22, 19
and 16)
maximum OSD colour signal
related to maximum colour
signal (pins 22, 19 and 16)
3
4
ns
t
f(OSDn)
4
7
ns
t
g(n)(CO)
0
4
6
ns
t
g(n)(OC)
0
5
6
ns
δ
V
OSDn
6
10
%
V
OSDn(max)
maximum OSD contrast;
maximum gain
90
96
110
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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