TDA9112A View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA9112A' PDF : 60 Pages View PDF
TDA9112A
Notes about horizontal section (continued)
Note 8: The tph(max) parameter is fixed by the application. For correct operation of asymmetry corrections through
dynamic phase modulation, this maximum must be reduced by maximum of the total dynamic phase required in
the direction leading to bending of corners to the right. Marginal situation is indicated by reach of VBotHPLL2C
low clamping level by waveform on pin HPLL2C. Also refer to Note 5 and Figure 6.
Note 9: All other dynamic phase corrections of picture asymmetry set to their neutral (medium) positions.
6.5 Vertical section
Table 2. Vertical section (Vcc = 12V, Tamb = 25°C)
Symbol
Parameter
Test Conditions
AGC-controlled vertical oscillator sawtooth; VRefO = 8V
RL(VAGCCap)
Ext. load resistance on
VAGCCap pin(10)
∆Vamp/Vamp(R=∞) ≤1%
VVOB
Sawtooth bottom voltage on
VCap pin(11)
No load on VOscF pin(11)
VVOTref
Sawtooth top voltage internal ref-
erence
VVOT
Sawtooth top voltage on VCap
pin
AGC loop stabilized
tVODis
fVO(0)
fVOCapt
Sawtooth Discharge time
Free-running frequency
AGC loop capture frequency
CVCap=150nF
CVCap=150nF
CVCap=150nF
∆--V--V-V---VO---O-a--md---ep--v-
Sawtooth non-linearity(12)(17) AGC loop stabilized (12)
Value
Units
Min. Typ. Max.
65
MΩ
2
V
5
V
5
V
80
µs
100
Hz
50
185 Hz
0.5
%
-V---V---∆O---aV---m-V--p-O---a⋅---m∆---p-f--V---O-
Frequency drift of sawtooth
amplitude(18)(19)
AGC loop stabilized
fVOCapt(min)≤fVO≤fVO-
Capt(max)
Vertical output drive signal (on pin VOut); VRefO = 8V
Vmidref
Vmid(VOut)
Vamp
Internal reference for vertical
sawtooth middle point
Middle point on VOut sawtooth
Amplitude of VOut sawtooth
(peak-to-peak voltage)
VPOS (Sad08h):(22)
x0000000b
x1000000b
x1111111b
VPOF (Sad1Eh):(21)
x0000000b
x1000000b
x1111111b
VSIZE (Sad07h):(23)
x0000000b
x1000000b
x1111111b
VSAG (Sad1Dh):(20)
x0000000b
x1000000b
x1111111b
VoffVOut
Level on VOut pin at V-drive "off" I²C-bus bit VOutEn at 0
200
ppm/Hz
3.5
V
3.1 3.3
V
3.45
V
3.65 3.8
V
3.3
V
3.45
V
3.6
V
2.25 2.5
V
3.0
V
3.5 3.75
V
2
V
2.5
V
3.0
V
4.0
V
12/60
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