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TDA4852 Datasheet(PDF) 7 Page - NXP Semiconductors

Part No. TDA4852
Description  Horizontal and vertical deflection controller for autosync monitors
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 7 page
background image
December 1992
7
Philips Semiconductors
Preliminary specification
Horizontal and vertical deflection controller
for autosync monitors
TDA4852
CHARACTERISTICS
VP = 12 V; Tamb =+25 °C; measurements taken in Fig.3 unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VP
positive supply voltage (pin 1)
9.2
12
16
V
IP
supply current
I18 = −1.05 mA
36
44
mA
I18 = −3.388 mA
40
49
mA
Internal reference voltage
Vref
internal reference voltage
6.0
6.25
6.5
V
TC
temperature coefficient
Tamb = +20 to +100 °C
−−
±90
10−6/K
PSRR
power supply ripple rejection
f = 1 kHz sinewave
60
75
dB
f = 1 MHz sinewave
25
35
dB
VP
supply voltage (pin 1) to ensure all
internal reference voltages
9.2
16
V
Composite sync input (AC-coupled)
V10 = 5 V
vi sync
sync amplitude of video input signal
(pin 9)
sync on green
300
mV
top sync clamping level
1.1
1.28
1.5
V
slicing level above top sync level
RS = 50 Ω
90
120
150
mV
RS
allowed source resistance for 7%
duty factor
Vi sync > 200 mV
−−
1.5
k
r9
differential input resistance
during sync
80
−Ω
I9
charging current of coupling capacitor
V9 > 1.5 V
1.3
2
3
µA
tint
vertical sync integration time to
generate vertical trigger pulse
fH = 31 kHz;
I18 = −1.050 mA
710
13
µs
fH = 64 kHz;
I18 = −2.169 mA
3.5
5
6.5
µs
fH = 100 kHz;
I18 = −3.388 mA
2.5
3.4
4.5
µs
Horizontal sync input (DC-coupled, TTL-compatible)
Vi sync
sync input signal
(peak-to-peak value, pin 9)
1.7
−−
V
slicing level
1.2
1.4
1.6
V
tp
minimum pulse width
700
−−
ns
tr, tf
rise time and fall time
10
500
ns
I9
input current
V9 = 0.8 V
−−
−200
µA
V9 = 5.5 V
−−
10
µA
Automatic horizontal polarity switch
H-sync on pin 9
tp H/tH
horizontal sync pulse width related to tH
(duty factor for automatic polarity
correction)
−−
30
%
tp
delay time for changing sync polarity
0.3
1.8
ms




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