tda9112a STMicroelectronics, tda9112a Datasheet - Page 12

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

TDA9112A
Notes about horizontal section (continued)
Note 8: The
Note 9: All other dynamic phase corrections of picture asymmetry set to their neutral (medium) positions.
6.5 Vertical section
12/60
AGC-controlled vertical oscillator sawtooth;
Vertical output drive signal (on pin VOut);
--------------------------------- -
V
R
VOamp
V
L(VAGCCap)
Symbol
V
V
f
------------------- -
V
mid(VOut)
V
t
VOCapt
f
V
V
V
V
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
low clamping level by waveform on pin HPLL2C. Also refer to
VODis
offVOut
VOTref
V
VO(0)
VOamp
midref
VOB
VOamp
VOT
amp
VOdev
tph(max)
f
VO
parameter is fixed by the application. For correct operation of asymmetry corrections through
Ext. load resistance on
VAGCCap
Sawtooth bottom voltage on
VCap
Sawtooth top voltage internal ref-
erence
Sawtooth top voltage on
pin
Sawtooth Discharge time
Free-running frequency
AGC loop capture frequency
Sawtooth non-linearity
Frequency drift of sawtooth
amplitude
Internal reference for vertical
sawtooth middle point
Middle point on
Amplitude of
(peak-to-peak voltage)
Level on
Table 2. Vertical section (Vcc = 12V, Tamb = 25°C)
pin
VOut
(11)
(18)(19)
Parameter
pin
VOut
(10)
pin at V-drive "off" I²C-bus bit
VOut
sawtooth
sawtooth
VRefO
(12)(17)
VRefO
VCap
= 8V
= 8V
No load on
AGC loop stabilized
C
C
C
AGC loop stabilized
AGC loop stabilized
fVOCapt
Capt
VPOS
VPOF
VSIZE
VSAG
x0000000b
x1000000b
x1111111b
x0000000b
x1000000b
x1111111b
x0000000b
x1000000b
x1111111b
x0000000b
x1000000b
x1111111b
V
VCap
VCap
VCap
amp
(max)
Test Conditions
=150nF
=150nF
=150nF
/V
(Sad1Eh):
(Sad08h):
(Sad1Dh):
(Sad07h):
amp
(min)
VOutEn
VOscF
(R= ) 1%
Note 5
f
VO
(22)
(21)
(23)
(20)
fVO-
pin
at 0
and
(12)
(11)
Figure
Min.
3.65
3.5
65
50
6.
Value
Typ.
3.45
3.45
2.25
3.75
100
200
0.5
3.5
3.1
3.8
3.3
3.6
3.0
2.5
3.0
4.0
80
2
5
5
2
Max.
185
VBotHPLL2C
3.3
2.5
ppm/Hz
Units
M
Hz
Hz
%
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
s