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TDA9112 Datasheet(PDF) 18 Page - STMicroelectronics

No. de pieza TDA9112
Descripción Electrónicos  LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR
PDF  51 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA9112 Datasheet(HTML) 18 Page - STMicroelectronics

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TDA9112
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6.9 - MISCELLANEOUS
VCC = 12V, Tamb =25°C
Note 45: Current sunk by the pin if the external voltage is higher than one the circuit tries to force.
Note 46: The threshold is equal to actual VRefO.
Note 47: In the regions of VCC where the device’s operation is disabled, the H-drive, V-drive and B+-drive signals on
HOut, VOut and BOut pins, resp., are inhibited, the I2C Bus does not accept any data and the XRayAlarm flag
is reset. Also see Figure 10
Note 48: See Figure 10
Symbol
Parameter
Test Condit ions
Value
Units
Min.
Typ.
Max.
Vertical blankin g and horizontal lock indication composite output HLckVBk
ISinkLckBk
Sink current to HLckVBk pin
(45)
100
µA
VOLckBk
Output voltage on HLckVBk output
0.1
1.1
5
6
V
V
V
V
Horizont al moiré canceller
Modulation of TH by H. moiré function
HMOIRE (Sad02):
x0000000b
x1111111b
0
0.04
%
%
Vertical moiré canceller
VV-moiré
Amplitude of modulation of V-drive
signal on VOut pin by vertical moiré.
VMOIRE (Sad0Bh):
x0000000b
x1111111b
0
3
mV
mV
Protection functions
VThrXRay
Input threshold on XRay input(46)
7.65
7.9
8.2
V
tXRayDelay
Delay time between XRay detection
event and protection action
2TH
VCCEn
VCC value for start of operation at VCC
ramp-up(47)
8.5
V
VCCDis
VCC value for stop of operation at VCC
ramp-down(47)
6.5
V
Control voltages on HPosF pin for Soft start/stop operation(18)(48)
VHOn
Threshold for start/st op of H-drive sig-
nal
1V
VBOn
Threshold for start/st op of B-drive sig-
nal
1.7
V
VHBNorm f
Threshold for full operational duty cycle
of H-drive and B-drive signals
2.4
VHPosF
Voltage on HPosF pin as function of ad-
justment of
HPOS register
Normal operation
HPOS (Sad01)
0000000xb
1111111xb
3.8
2.6
4.0
2.8
4.2
3.0
V
V
V. blank
H. lock
No
Yes
Yes
Yes
No
No
Yes
No
T
HH
moi re
–
()
∆
T
H
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