TDA6106Q Datasheet, PDF (8/12 Pages) NXP Semiconductors – Video output amplifier

Philips Semiconductors
Video output amplifier
Product specification
TDA6106Q
TEST AND APPLICATION INFORMATION
handbook, full pagewidth
Vin
GND
C1
22 nF
C2
22 µF
R1
50 Ω
R9
866 Ω
0.98 mA
Cpar
Rfb
R10 100 kΩ
200 V
C6
100 nF
6
9
3 TDA6106Q 8
4
5
A
Vom
4V
Cn
560 pF
C8
C7
6.8 pF
3.2 pF _C9
136 pF
R3
20 MΩ
probe
R2
1 MΩ
MBG344
C_par = 150 fF.
Fig.5 Test circuit with feedback factor ¹â„₁₁₆.
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.
P_stat
=
V_DD
×
I_DD
+
V_oc
×
I_oc
–
V_of
×



R-V----^of--_b^-f



Where:
R_fb = value of feedback resistor.
I_oc = DC value of cathode current.
The dynamic dissipation equals:
P_dyn = V_DD × (C_L + C_fb + C_int) × f × V_{o (p – p)} × b
Where:
C_L = load capacitance.
C_fb = feedback capacitance.
C_int = internal load capacitance (≈ 4 pF).
f = input frequency.
V_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_L).
1997 Mar 03
8