TDA4851 データシートの表示（PDF） - Philips Electronics
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TDA4851
Philips Electronics
TDA4851 Datasheet PDF : 17 Pages
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Philips Semiconductors
Horizontal and vertical deflection controller
for VGA/XGA and autosync monitors
Preliminary specification
TDA4851
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Vertical differential output
Fig.7
Io
differential output current between
mode 3; I13 > −135 µA; 0.9 1.0
1.1 mA
pins 5 and 6 (peak-to-peak value)
R15 = 22 kΩ
maximum offset-current error
Io = 1 mA
−
−
±2.5 %
maximum linearity error
−
−
±1.5 %
Vertical amplitude adjustment (in percentage of output signal)
V13
I13
∆Io/∆t
input voltage
adjustment current
VGA mode-dependent pre-settings
activated by an external resistor on pin 7
Mode 1
Mode 2
Mode 3
Mode 4
autosync operation
(VGA operation disabled)
Io max (100%)
Io min (typically 58%)
Table 1; note 1
V7 < 50 mV
−
−110
−
5.0
−120
0
116.2
101.6
−
−
−
116.8
102.2
100
100
100
−
V
−135 µA
−
µA
117.4 %
102.8 %
−
%
−
%
−
%
Horizontal comparator PLL1
V17
upper control voltage limitation
lower control voltage limitation
I17
control current
Fig.6
−
5.9
−
V
−
5.1
−
V
−
±0.083I18 −
mA
Horizontal oscillator
fosc
centre frequency
ϕH/tH
I18
V18
deviation of centre frequency
temperature coefficient
relative holding/catching range
external oscillator current
voltage at reference current input
(pin 18)
Horizontal PLL2
R18 = 2.4 kΩ (pin 18);
C19 = 10 nF (pin 19)
−
−
0
±6
−0.5
2.35
31.45
−
+200
±6.5
−
2.5
Fig.6
−
kHz
±3
+300
±7.3
−4.3
2.65
%
10-6/K
%
mA
V
V2
td/tH
V20
I20
∆t/tH
upper clamping level of flyback input
lower clamping level of flyback input
H-flyback slicing level
delay between middle of sync and
middle of H-flyback related to tH
upper control voltage limitation
lower control voltage limitation
control current
PLL2 control range related to tH
I2 = 6 mA
I2 = −1 mA
−
5.5
−
V
−
−0.75
−
V
−
3.0
−
V
−
3.0
−
%
−
6.2
−
V
−
4.8
−
V
−
±0.083I18 −
µA
30
−
−
%
November 1992
9
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