TDA4841PS Datasheet, PDF (18/60 Pages) NXP Semiconductors – I2C-bus autosync deflection controller for PC monitors

Philips Semiconductors
I²C-bus autosync deflection controller for
PC monitors
Product specification
TDA4841PS
SYMBOL
PARAMETER
CONDITIONS
MIN.
Phase adjustments and corrections via PLL1 and PLL2
HPOS
horizontal position (referenced register HPOS = 0
−
to horizontal period)
register HPOS = 127
−
register HPOS = 255
−
HPINBAL
horizontal pin unbalance
correction via HPLL2
(referenced to horizontal
period)
register HPINBAL = 0;
−
note 6
register HPINBAL = 63; −
note 6
register HPINBAL = 32; −
note 6
HPARAL
horizontal parallelogram
correction (referenced to
horizontal period)
register HPARAL = 0;
−
note 6
register HPARAL = 63;
−
note 6
register HPARAL = 32;
−
note 6
HMOIRE
relative modulation of
horizontal position by
1_{⁄2 horizontal frequency;}
phase alternates with
1_{⁄2 vertical frequency}
moire cancellation off
register HMOIRE = 0;
−
control bit MOD = 0
register HMOIRE = 63;
−
control bit MOD = 0
control bit MOD = 1
−
PLL2 phase detector: pins HFLB and HPLL2
φ_PLL2
PLL2 control (advance of
maximum advance;
36
horizontal drive with respect to register HPINBAL = 32;
middle of horizontal flyback) register HPARAL = 32
minimum advance; register −
HPINBAL = 32; register
HPARAL = 32
I_ctrl(PLL2)
PLL2 control current
−
Φ_PLL2
relative sensitivity of PLL2
−
phase shift related to horizontal
period
V_{PROT(HPLL2)(max)} maximum voltage for PLL2
−
protection mode/soft start
I_ch(PLL2)
charge current for external
V_HPLL2 < 3.7 V
−
capacitor during soft start
I_dch(PLL2)
discharge current for external V_HPLL2 < 3.7 V
−
capacitor during soft down
TYP.
−13
0
13
−1.2
1.2
0.02
−1.2
1.2
0.02
0
0.02
0
−
7
75
28
4.6
1
−1
MAX. UNIT
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
%
−
µA
−
mV/%
−
V
−
µA
−
µA
1999 Oct 25
18