TDA9112A データシートの表示（PDF） - STMicroelectronics
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TDA9112A Datasheet PDF : 60 Pages
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TDA9112A
6 ELECTRICAL PARAMETERS AND OPERATING CONDITIONS
Medium (middle) value of an I²C-bus control or adjustment register composed of bits D0, D1,...,Dn is the
one having Dn at "1" and all other bits at "0". Minimum value is the one with all bits at 0, maximum value
is the one with all at "1".
Currents flowing from the device (sourced) are signed negative. Currents flowing to the device are signed
positive.
TH is period of horizontal deflection.
6.1 Thermal data
Symbol
Tamb
Rth(j-a)
Parameter
Operating ambient temperature
Junction-ambience thermal resistance
Min.
0
Value
Typ.
65
Max.
70
Unit
°C
°C/W
6.2 Supply and Reference voltages
Tamb = 25°C
Symbol
VCC
ICC
VRefO
IRefO
Parameter
Supply voltage at Vcc pin
Supply current to Vcc pin
Reference output voltage at RefOut pin
Current capability of RefOut output
Test Conditions
VCC = 12V
VCC = 12V, IRefO= -2mA
Min.
10.8
7.65
-5
Value
Typ.
12
65
7.9
Max.
13.2
8.2
0
Units
V
mA
V
mA
6.3 Synchronization inputs
Vcc = 12V, Tamb = 25°C
Symbol
Parameter
Test Conditions
VLoH/HVSyn
VHiH/HVSyn
VLoVSyn
VHiVSyn
RPdSyn
tPulseHSyn
tPulseHSyn /TH
tPulseVSyn
tPulseVSyn /TV
textrV /TH
tHPolDet
LOW level voltage on H/HVSyn
HIGH level voltage on H/HVSyn
LOW level voltage on VSyn
HIGH level voltage on VSyn
Internal pull-down on H/HVSyn, VSyn
H sync. pulse duration on H/HVSyn pin
Proportion of H sync pulse to H period Pin H/HVSyn
V sync. pulse duration
Pins H/HVSyn, VSyn
Proportion of V sync pulse to V period Pins H/HVSyn, VSyn
Proportion of H sync pulse length to H pe- Pin H/HVSyn,
riod for extraction as V sync pulse
cap. on pin CO = 820pF
Polarity detection time (after change) Pin H/HVSyn
Min.
0
2.2
0
2.2
100
0.5
0.5
Value
Typ.
175
Max.
0.8
5
0.8
5
250
0.2
750
0.15
Units
V
V
V
V
kΩ
µs
µs
0.21 0.35
0.75
ms
9/60
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