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参数资料
| 型号： | TDA4854/V2 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 偏转 |
| 英文描述： | HORIZ/VERT DEFLECTION IC, PDIP32 |
| 封装： | PLASTIC, SDIP-32 |
| 文件页数： | 8/63页 |
| 文件大小： | 318K |
| 代理商： | TDA4854/V2 |
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1999 Jul 13
16
Philips Semiconductors
Product specication
I2C-bus autosync deection controllers for
PC/TV monitors
TDA4853; TDA4854
CHARACTERISTICS
VCC = 12 V; Tamb =25 °C; peripheral components in accordance with Figs 1 and 2; unless otherwise specied.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Horizontal sync separator
INPUT CHARACTERISTICS FOR DC-COUPLED TTL SIGNALS: PIN HSYNC
Vi(HSYNC)
sync input signal voltage
1.7
V
VHSYNC(sl)
slicing voltage level
1.2
1.4
1.6
V
tr(HSYNC)
rise time of sync pulse
10
500
ns
tf(HSYNC)
fall time of sync pulse
10
500
ns
tW(HSYNC)(min)
minimum width of sync pulse
0.7
s
Ii(HSYNC)
input current
VHSYNC = 0.8 V
200
A
VHSYNC = 5.5 V
10
A
INPUT CHARACTERISTICS FOR AC-COUPLED VIDEO SIGNALS (SYNC-ON-VIDEO, NEGATIVE SYNC POLARITY)
VHSYNC
sync amplitude of video input
signal voltage
Rsource =50
300
mV
VHSYNC(sl)
slicing voltage level
(measured from top sync)
Rsource =50
90
120
150
mV
Vclamp(HSYNC)
top sync clamping voltage level Rsource =50
1.1
1.28
1.5
V
Ich(HSYNC)
charge current for coupling
capacitor
VHSYNC >Vclamp(HSYNC)
1.7
2.4
3.4
A
tW(HSYNC)(min)
minimum width of sync pulse
0.7
s
Rsource(max)
maximum source resistance
duty cycle = 7%
1500
Ri(diff)(HSYNC)
differential input resistance
during sync
80
Automatic polarity correction for horizontal sync
horizontal sync pulse width
related to line period
25
%
td(HPOL)
delay time for changing polarity
0.3
1.8
ms
Vertical sync integrator
tint(V)
integration time for generation
of a vertical trigger pulse
fH = 15.625 kHz;
IHREF = 0.52 mA
14
20
26
s
fH = 31.45 kHz;
IHREF = 1.052 mA
710
13
s
fH = 64 kHz;
IHREF = 2.141 mA
3.9
5.7
6.5
s
fH = 100 kHz;
IHREF = 3.345 mA
2.5
3.8
4.5
s
Vertical sync slicer (DC-coupled, TTL compatible): pin VSYNC
Vi(VSYNC)
sync input signal voltage
1.7
V
VVSYNC(sl)
slicing voltage level
1.2
1.4
1.6
V
Ii(VSYNC)
input current
0 V < VSYNC < 5.5 V
±10
A
t
PH
()
t
H
------------
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