TDA9109A View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA9109A' PDF : 47 Pages View PDF
TDA9109A
DYNAMIC FOCUS SECTION
Electrical Characteristics (VCC = 12V, Tamb = 25°C)
Symbol
Parameter
Test Conditions
HORIZONTAL DYNAMIC FOCUS FUNCTION
HDFst
Horizontal Dynamic Focus Sawtooth
Minimum Level
Maximum Level
Pin 9, capacitor on
HFOCUSCAP and
C0 = 820pF, TH =
20µs
HDFdis
Horizontal Dynamic Focus Sawtooth
Discharge Width
Start by HDFstart
HDFstart
Internal Fixed Phase Advance versus
HFLY middle
Independent of
frequency
HDFDC
TDFHD
Bottom DC Output Level
DC Output Voltage Thermal Drift
(see 15)
RLOAD = 10kΩ, Pin 10
HDFamp
Horizontal Dynamic Focus Amplitude
Min Byte xxx11111
Typ Byte xxx10000
Max Byte xxx00000
Sub-Address 03,
Pin 10, fH = 50kHz,
Symmetric Wave
Form
HDFKeyst
Horizontal Dynamic Focus Position
Advance for Byte xxx11111
Delay for Byte
xxx00000
Sub-address 04
For time reference
see Figure 15
VERTICAL DYNAMIC FOCUS FUNCTION (positive parabola)
AMPVDF
Vertical Dynamic Focus Parabola
(added to horizontal) Amplitude with
VAMP and VPOS Typical
Min. Byte xx000000
Typ. Byte xx100000
Max. Byte xx111111
Sub-Address 0F
VDFAMP
Parabola Amplitude Function of VAMP
(tracking between VAMP and VDF)
with VPOS Typ. (see Figure 1 and 16)
Sub-Address 05
Byte x0000000
Byte x1000000
Byte x1111111
VHDFKeyt
Parabola Asymmetry Function of
VPOS Control (tracking between
VPOS and VDF) with VAMP Max.
A/B Ratio
B/A Ratio
Sub-Address 06
Byte x0000000
Byte x1111111
Min.
Typ.
2.2
4.9
400
1
2.1
200
1
1.5
3.5
16
16
0
0.5
1
0.6
1
1.5
0.52
0.52
Max. Units
V
V
ns
µs
V
ppm/
C
VPP
VPP
VPP
%
%
VPP
VPP
VPP
VPP
VPP
VPP
Note: 15 These parameters are not tested on each unit. They are measured during our internal qualification.
Note: 16 S and C correction are inhibited so the vertical output sawtooth has a linear shape.
15/47
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