Philips TDA6106Q Manuel d'utilisateur télécharger pdf (Page 8)

1997 Mar 03 8

Philips Semiconductors Product speciﬁcation

Video output ampliﬁer TDA6106Q

TEST AND APPLICATION INFORMATION

par

= 150 fF.

Fig.5 Test circuit with feedback factor

⁄

116

handbook, full pagewidth

200 V

TDA6106Q

R10

100 kΩ

par

4 V

GND

R1

50 Ω

0.98 mA

22 µF

22 nF

866 Ω

560 pF

100 nF

6.8 pF

3.2 pF

136 pF

20 MΩ

1 MΩ

probe

MBG344

Dissipation

With respect to dissipation, distinction must be made

between static dissipation (independent of frequency) and

dynamic dissipation (proportional to frequency).

The static dissipation of the TDA6106Q is due to supply

currents and load currents in the feedback network and

CRT.

Where:

= value of feedback resistor.

= DC value of cathode current.

stat

--------







×–×+×=

The dynamic dissipation equals:

Where:

= load capacitance.

= feedback capacitance.

int

= internal load capacitance (≈ 4 pF).

f = input frequency.

o(p-p)

= output voltage (peak-to-peak value).

b = non-blanking duty-cycle.

The IC must be mounted on the picture tube base print to

minimize the load capacitance (C

dyn

int

++()× fV

op p–()

× b××=

1 2 3 4 5 6 7 8 9 10 11 12

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Philips TDA6106Q Manuel d'utilisateur Page 8

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