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NTE7134 Datasheet(PDF) 3 Page - NTE Electronics

Part No. NTE7134
Description  Integrated Circuit Horizontal and Vertical Deflection Controller for Monitors
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Maker  NTE [NTE Electronics]
Homepage  http://www.nteinc.com
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NTE7134 Datasheet(HTML) 3 Page - NTE Electronics

 
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Electrical Characteristics (Cont’d): (VP = 12V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Horizontal Sync Separator (Cont’d)
Input Characteristics for AC–Coupled Video Signals (Sync–on–Video, Negative Sync Polarity)
Sync Amplitude of Video Input Signal
Voltage
VAC(HSYNC)
300
mV
Slicing Voltage Level
(Measured from Top Sync)
RS = 50Ω
90
120
150
mV
Top Sync Clamping Level
Vclamp(HSYNC)
1.1
1.28
1.5
V
Charge Current for Coupling Capacitor
IC(HSYNC)
VHSYNC > Vclamp(HSYNC)
1.7
2.4
3.4
µA
Minimum Width of Sync Pulse
tHSYNC(min)
0.7
µs
Maximum Source Resistance
RS(max)
Duty factor = 7%
1500
Differential Input Resistance
rdiff(HSYNC)
During Sync
80
Automatic Polarity Correction for Horizontal Sync
Horizontal Sync Pulse Width Related to tH
tp(H)
fH < 45kHz
20
%
tH
fH > 45kHz
25
&
Delay Time for Changing Polarity
tp(H)
0.3
1.8
ms
Vertical Sync Integrator
Integration Time for Generation of a
Vertical Trigger Pulse
tint(V)
fH = 31.45kHz,
IHREF = 1.052mA
7.0
10.0
13.0
µs
fH = 64kHz,
IHREF = 2.141mA
3.9
5.7
6.5
µs
fH = 100kHz,
IHREF = 3.345mA
2.5
3.8
4.5
µs
Vertical Sync Slicer (DC–Coupled, TTL Compatible) [VSYNC (Pin14)]
Sync Input Signal Voltage
VVSYNC
1.7
V
Slicing Voltage Level
1.2
1.4
1.6
V
Input Current
IVSYNC
0V < VSYNC < 5.5V
±10
µA
Vertical Sync Output at VSYNC (Pin14) During Composite Sync at HSYNC (Pin15)
Output Current
IVSYNC
During Internal Vertical Sync
–0.7
–1.0
–1.35
mA
Internal Clamping Voltage Level
VVSYNC
During Internal Vertical Sync
4.4
4.8
5.2
V
Steepness of Slopes
300
ns/mA
Automatic Polarity Correction for Vertical Sync
Maximum Width of Vertical Sync Pulse
tVSYNC(max)
300
µs
Delay for Change Polarity
td(VPOL)
0.3
1.8
ms
Video Clamping/Vertical Blanking Output [CLCB (Pin16)]
Width of Video Clamping Pulse
tclamp(CLBL)
Measured at VCLBL = 3V
0.6
0.7
0.8
µs
Temperature Coefficient of Vclamp(CLCB)
TCclamp
+4
mV/K
Steepness of Slopes for Clamping Pulse
RL = 1MΩ, CL = 20pF
50
ns/V
Top Voltage Level of Vertical
Blanking Pulse
Vblank(CLBL)
Note 2
1.7
1.9
2.1
V
Width of Vertical Blanking Pulse
tblank(CLBL)
240
300
360
µs
Note 2. Continuous blanking at CLCB (Pin16) will be activated, if one of the following conditions is true:
a) No horizontal flyback pulse at HFLB (Pin1) within a line
b) X–ray protection is triggered
c) Voltage at HPLL2 (Pin31) is low (for soft start of horizontal drive)
d) Supply voltage at VVV (Pin9) is low
e) PLL1 unlocked while frequency–locked loop is in search mode


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