TDA9115 datasheet(22/45 Pages) STMICROELECTRONICS

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TDA9115

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(start of vertical sawtooth ramp on the VOut

pin)

1: Permanent blanking - high blanking level in

composite signal on pin HLckVBk is per-

manent

Sad17/D1 - VOutEn

Vertical Output Enable

0: Disabled, VoffVOut on VOut pin (see 6.5

Vertical section)

1: Enabled, vertical ramp with vertical position

offset on VOut pin

Sad17/D2 - HBOutEn

Horizontal and B+ Output Enable

0: Disabled, levels corresponding to “power

transistor off” on HOut and BOut pins (high

for HOut, high or low for BOut, depending

on BOutPol bit).

1: Enabled, horizontal deflection drive signal

on HOut pin providing that it is not inhibited

by another internal event (activated XRay

protection). B+ drive signal on BOut pin.

Programming the bit to 1 after prior value of 0,

will initiate soft start mechanism of horizontal

drive and of B+ DC/DC convertor

Sad17/D3 - BOHEdge

Selection of Edge of Horizontal drive signal to

phase B+ drive Output signal on BOut pin. Only

applies if the bit BOutPh is set to 1, otherwise

BOHEdge

has no effect.

0: Falling edge

1: Rising edge

Sad17/D4,D5,D6,D7 - THM, TVM, TH, TV

Test bits. They must be kept at 0 level by appli-

cation S/W.

TDA9115 Datenblatt(PDF) 22 Page - STMicroelectronics