TDA4856 데이터 시트보기 (PDF) - Philips Electronics
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TDA4856 Datasheet PDF : 58 Pages
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Philips Semiconductors
I2C-bus autosync deflection controller for
PC monitors
Product specification
TDA4856
SYMBOL
PARAMETER
CONDITIONS
MIN.
fro(VSMOD)
roll-off frequency (−3 dB)
Ii(VSMOD) = −60 µA + 15 µA 1
(RMS)
ADJUSTMENT OF VERTICAL POSITION; see Figs 3 to 7
VOFFS
VPOS
vertical position (referenced to register VOFFS = 0
−
100% vertical size)
register VOFFS = 15
−
register VOFFS = 8
−
vertical position (referenced to register VPOS = 0
−
100% vertical size)
register VPOS = 127
−
register VPOS = 64
−
ADJUSTMENT OF VERTICAL LINEARITY; see Figs 6 and 27
VLIN
δVLIN
vertical linearity (S-correction) register VLIN = 0; control −
bit VSC = 0; note 8
register VLIN = 15; control −
bit VSC = 0; note 8
register VLIN = X; control −
bit VSC = 1; note 8
symmetry error of S-correction maximum VLIN
−
ADJUSTMENT OF VERTICAL LINEARITY BALANCE; see Fig.7
VLINBAL
VMOIRE
vertical linearity balance
(referenced to 100% vertical
size)
modulation of vertical picture
position by 1⁄2 vertical
frequency (related to 100%
vertical size)
moire cancellation off
register VLINBAL = 0;
note 8
register VLINBAL = 15;
note 8
register VLINBAL = 8;
note 8
register VMOIRE = 0;
control bit MOD = 0
register VMOIRE = 63;
control bit MOD = 0
control bit MOD = 1
−1.85
0.95
−
−
−
−
Vertical output stage: pins VOUT1 and VOUT2; see Fig.27
∆IVOUT(nom)(p-p)
nominal differential output
current (peak-to-peak value)
∆IVOUT = IVOUT1 − IVOUT2;
nominal settings; note 8
0.76
Io(VOUT)(max)
maximum output current at
pins VOUT1 and VOUT2
control bit VOVSCN = 1 0.54
VVOUT
E(offset)(max)(V)
LEV(max)
allowed voltage at outputs
0
maximum offset error of vertical nominal settings; note 8 −
output currents
maximum linearity error of
vertical output currents
nominal settings; note 8 −
TYP.
−
−4
4
0.25
−11.5
11.5
0.09
2
46
0
−
−1.40
1.40
0.08
0
0.08
0
0.85
0.6
−
−
−
MAX. UNIT
−
MHz
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
%
±0.7 %
−0.95 %
1.85 %
−
%
−
%
−
%
−
%
0.94 mA
0.66 mA
4.2
V
±2.5 %
±1.5 %
2003 Sep 30
21
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