tda9112a STMicroelectronics, tda9112a Datasheet - Page 51

• Manufacturer Part Number: tda9112a
• Description: High-end I2c Controlled Deflection Processor For Multisync Monitor
• Manufacturer: STMicroelectronics

Figure 19. Safety functions - block diagram
VThrXRay
H-lock detector
H-lock detector
VCCXRay
BlankMode
XRayReset
VCCDis
HBOutEn
VCCEn
HLockEn
BSafeEn
V-sawtooth
VOutEn
discharge
XRay
HFly
V-sync
VCC
VThrHFly
12
I²C
I²C
I²C
25
VCC
I²C
I²C
I²C
+
_
+
+
+
_
_
_
V
CC
R
S
supervision
Q
BMute
In
discharge
H-VCO
control
:2
I²C
Enable
Out
I²C
L1=No blank/blank level
I²C bit/flag
0 = Off
1 = On
L2=H-lock/unlock level
R
S
B-drive inhibit
H-drive inhibit
Q
= start
= stop
Int. signal
START & STOP
B-drive protection at H-unlock
INHIBITION
CONTROL
HPosF
SOFT
10
H-drive inhibition
B-drive inhibition
V-drive inhibition
L3=L1+L2
(timing)
(overrule)
XRayAlarm
X
TDA9112A
PLL1
PLL2
DC/DC
Pin
HLckVBk
HLock
I²C
I²C
3
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