TDA9112A View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA9112A' PDF : 60 Pages View PDF
Symbol
IVOut
VSCor /Vamp
VCCor /Vamp
VVEHT
VVEHTnull
-V---a--m----p∆----⋅V---∆-a--mV----pV---E---H---T--
Table 2. Vertical section (Vcc = 12V, Tamb = 25°C)
TDA9112A
Parameter
Test Conditions
Current delivered by VOut output
(13)(20)(21)
S-correction range
AGC loop stabilized
tVR=1/4 TVR(15)
tVR=3/4 TVR
(14)(20)(21)
C-correction range
AGC loop stabilized
tVR=1/2 TVR(15)
CCOR(Sad0Ah):
x0000000b
x1000000b
x1111111b
Control input voltage range on-
VEHTIn pin
Neutral point on breathing char-
acteristics(16)
Breathing compensation
VRefO < VVEHT < VCC
VVEHT(min)≤VVEHT≤VVE-
HT(max):
VEHTG (Sad1Ch):
x0000000b
x1000000b
x1111111b
Min.
-5
Value
Typ.
Max.
0.25
Units
mA
-4.5
%
+4.5
%
-2.5
%
0
%
+2.5
%
1
4
6
V
4.0
V
0
%/V
5
%/V
0
%/V
-5
%/V
Notes about vertical section
Note 10: Value of acceptable cumulated parasitic load resistance due to humidity, AGC storage capacitor leakage, etc.,
for less than 1% of Vamp change.
Note 11: The threshold for VVOB is generated internally and routed to VOscF pin. Any DC current on this pin will
influence the value of VVOB.
Note 12: Maximum of deviation from an ideally linear sawtooth ramp at null S-correction (SCOR at 0000000b) and null
C-correction (CCOR at 1000000b). The same rate applies to V-drive signal on VOut pin, no effect on EWOut.
Note 13: Maximum S-correction (SCOR at x1111111b), null C-correction (CCOR at 1000000b).
Note 14: Null S-correction (SCOR at 0000000b).
Note 15: "tVR" is time from the beginning of vertical ramp of V-drive signal on VOut pin. "TVR" is the duration of this ramp,
see Chapter 7 - page 22 and Figure 19.
Note 16: If VVEHT=VVEHTnull or VHEHT=VHEHTnull, respectively, the influence of VVEHT on vertical drive amplitude
or the influence of VHEHT on EW drive signal, respectively, is null.
Note 17: VVOamp = VVOT -VVOB
Note 18: Only the top of the saw tooth drifts. The same rate applies to V-drive signal on VOut pin.
Note 19: Informative, not tested on each unit.
Note 20: VSIZE at medium value 1000000b.
Note 21: VPOS at medium value 1000000b.
Note 22: VPOF at medium value 1000000b.
Note 23: VSAG at maximum value 1111111b.
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