TDA9111 datasheet(11/43 Pages) STMICROELECTRONICS

11 / 43 page

TDA9111

11/43

DYNAMIC FOCUS SECTION

Electrical Characteristics (VCC = 12V, Tamb =25°C)

Note: 15 S and C correction are inhibited to obtain a linear vertical sawtooth.

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Units

HORIZONTAL DYNAMIC FOCUS FUNCTION (seeFigure 15 on page 29)

HDFst

Horizontal Dynamic Focus Sawtooth

Minimum Level

Maximum Level

Pin 9, capacitor on HFO-

CUSCAP and

C0 = 820pF, TH =20µs

2.2

4.9

HDFdis

Horizontal Dynamic Focus Sawtooth Dis-

charge Width

Triggered by HDFstart

400

HDFstart

Internal Phase Advance versus HFLY

middle

(Independent of frequency)

µs

HDFDC

Bottom DC Output Level

RLOAD = 10kΩ,

Pin 10

2.1

TDFHD

DC Output Voltage Thermal Drift (11)

200

ppm/C

HDFamp

Horizontal Dynamic Focus

Amplitude

Max Byte

Typ Byte

Max Byte

Sub-Address 03,

Pin 10, fH = 50kHz,

Symmetric Wave Form

x1111111

x1000000

x0000000

1.5

3.5

VPP

HDFKeyst

Horizontal Dynamic FocusSymmetry

(For time reference, see Figure 15 )

Advance for Byte

Delay for Byte

Subaddress 04

x1111111 (decimal 127)

x0000000 (decimal 0)

VERTICAL DYNAMIC FOCUS FUNCTION (see Figu re 1)

AMPVDF

Vertical Dynamic Focus Parabola (added

to horizontal) Amplitude with VAMP and

VPOS Typical

Sub-Address 0F

Min Byte x0000000

Typ Byte x1000000

Max Byte x1111111

0.5

VPP

VDFAMP

Parabola Amplitude Function of VAMP

(tracking between VAMP and VDF) with

VPOS Typ. (seeFigure 1 on page 15 and

(15))

Sub-Address 05

Byte

x0000000

Byte

x1000000

Byte

x1111111

0.6

1.5

VPP

VHDFKeyt

Parabola Asymmetry Function of VPOS

Control (tracking between VPOS and

VDF) with VAMP Max.

B/A Ratio

A/B Ratio

Sub-Address 06

Byte

x0000000

Byte

x1111111

0.52

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