tda6108ajf-n2 NXP Semiconductors, tda6108ajf-n2 Datasheet - Page 10

• Manufacturer Part Number: tda6108ajf-n2
• Description: Tda6108ajf Triple Video Output Amplifier
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 14729
Product data sheet
10.2 Switch-off behavior
10.3 Bandwidth
10.4 Dissipation
The switch-off behavior of the TDA6108AJF is controllable. This is because the output
pins of the TDA6108AJF are still under control of the input pins for low power supply
voltages (approximately 30 V and higher).
The addition of the flash resistor produces a decreased bandwidth and increases the rise
and fall times.
A distinction must first be made between static dissipation (independent of frequency) and
dynamic dissipation (proportional to frequency).
The static dissipation of the TDA6108AJF is due to voltage supply currents and load
currents in the feedback network and CRT.
The static dissipation P
Where:
The dynamic dissipation P
Where:
The TDA6108AJF must be mounted on the picture tube base print to minimize the load
capacitance.
V
I
V
I
C
C
f
V
DD
oc
i
DD
oc
oc(p-p)
L
int
= input frequency
= non-blanking duty factor.
= DC value of cathode output current.
= load capacitance
= supply current
= DC value of cathode output voltage
= internal load capacitance ( 4 pF)
= supply voltage
= cathode output voltage (peak-to-peak value)
stat
Rev. 03 — 20 April 2005
dyn
equals: P
equals: P
stat
dyn
= V
= 3
DD
I
V
DD
DD
+ 3
(C
L
V
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
+ C
oc
Triple video output amplifier
TDA6108AJF
int
I
oc
)
f
i
V
oc(p-p)
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