參數(shù)資料
型號(hào)： TDA4887
廠商： NXP Semiconductors N.V.
英文描述： 160 MHz bus-controlled monitor video preamplifier
中文描述： 160 MHz的總線控制顯示器的視頻前置放大器
文件頁數(shù)： 16/68頁
文件大?。?/td> 425K
代理商： TDA4887
2001 Oct 19
16
Philips Semiconductors
Product specification
160 MHz bus-controlled monitor video
preamplifier
TDA4887PS
OSD contrast control;
see Fig.9 and note 14
δ
OC
OSD colour signal related to
maximum OSD colour signal
0FH (maximum)
00H (minimum)
14
0
12
10
dB
dB
Subcontrast adjustment, contrast modulation and beam current limiting (pin 24);
see Fig.8 and note 15
V
LIM(nom)
V
LIM(start)
nominal input voltage
starting voltage for linear
contrast and OSD contrast
reduction
stop voltage for linear
contrast and OSD contrast
reduction
bandwidth of contrast
modulation
maximum input current
pin 24 open-circuit
4.7
4.2
5.0
4.4
5.3
4.8
V
V
V
LIM(stop)
40 dB below maximum
colour signal (contrast
setting FFH)
3 dB
1.5
2.0
2.5
V
B
LIM
4
MHz
I
LIM(max)
Brightness control;
see Figs 10, 12 and 14 and notes 16 and 17
V
bl(n)
difference between video
black level and reference
black level at signal outputs
related to maximum colour
signal
V
DA(n)
DAC output voltage shift
(pins 23, 20 and 17)
V
LIM
= 0 V
1
+1
μ
A
FFH (maximum); BRI = 0
40H (nominal); BRI = 0
00H (minimum); BRI = 0
28
2
12
33
0
10
38
+2
8
%
%
%
FPOL = 1, see DAC output
voltages for AC coupling or
feedback reference voltage
shift; FPOL = 0, see internal
feedback reference voltage
for DC coupling
FFH (maximum); BRI = 1
00H (minimum); BRI = 1
1.4
0
V
V
Gain control;
see Fig.11 and note 18
δ
G
video signal related to video
signal at maximum gain
FFH (maximum)
00H (minimum)
15
0
13.5
12.5
dB
dB
Pedestal blanking;
see Fig.5 and note 19
V
bl(n)(PED-VID)
difference between pedestal
black level and video black
level at nominal brightness,
measured at signal outputs
(pins 22, 19 and 16) related
to maximum colour signal
03H (maximum)
02H
01H
00H (minimum)
12
8
4
13.5
9
4.5
0
%
%
%
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA4887PS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:160 MHz bus-controlled monitor video preamplifier
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