TDA4850 Datasheet, PDF (11/20 Pages) NXP Semiconductors – Horizontal and vertical deflection controller for VGA/XGA and multi-frequency monitors

Philips Semiconductors
Horizontal and vertical deflection controller
for VGA/XGA and multi-frequency monitors
Product specification
TDA4850
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Vertical amplitude adjustment (in percent of output signal)
V₁₃
I₁₃
∆I_o/∆t
input voltage
adjustment current
VGA mode-dependent pre-settings
activated by an external resistor on pin 7
I_{o max} (100%)
I_{o min} (typically 58%)
note 1; see Table 2
mode 1
mode 2
mode 3
mode 4
multi-frequency operation (VGA operation V₇ < 50 mV
disabled)
−
5.0
−
V
−110 −120 −135 µA
−
0
−
µA
116.1 116.8 117.5 %
102.0 102.2 102.5 %
−
100 −
%
−
100 −
%
−
100 −
%
E/W output; note 2
V₁₁
bottom output signal during mid-scan
(pin 11)
top output signal during flyback
TC
temperature coefficient of output signal
E/W amplitude adjustment (parabola); see Fig.4
V₁₄
input voltage (pin 14)
I₁₄
adjustment current
internally stabilized
1.05 1.2 1.35 V
4.1 4.35 4.6 V
−
−
250 10^−6/K
−
5.0
−
V
100% parabola
−110 −120 −135 µA
typically 28% parabola −
0
−
µA
Notes to the Characteristics
1. ∆I_o/∆t relative to value of mode 3.
2. Parabola amplitude tracks with mode-dependent vertical amplitude but not with vertical amplitude adjustment.
Tracking can be achieved by a resistor from vertical amplitude potentiometer to pin 14.
1997 Jun 05
11