TDA9530 ST Microelectronics, TDA9530 Datasheet - Page 4

• Manufacturer Part Number: TDA9530
• Description: 9.5NS TRIPLE HIGH VOLTAGE VIDEO AMPLIFIER
• Manufacturer: ST Microelectronics

TDA9530
TYPICAL APPLICATION
PC Board Lay-out
The best performance is obtained with a carefully
designed HF PC board, especially for the output
and input capacitors.
Rise/fall time and bandwidth are measured on
a 8pF load (including a PC board parasitical, sock-
et and a CRT capacitor).
The input voltage range for the cut-off adjustment
pins is from 1 to 4 volts and a 10 nF to 47 nF by-
pass capacitor is recommended on these pins.
Power Dissipation
The power dissipation is the sum of the DC and
the dynamic dissipation.
As the feedback resistors are integrated, the DC
power dissipation (capacitive load) can be estimat-
ed by:
4/8
75
75
75
V
V
V
C.OFF2
C.OFF3
C.OFF1
IN3
IN1
IN2
10
12
14
2
4
6
TDA9530
C.OFF2
C.OFF3
C.OFF1
V
CC
V
CC
11
V
P
The dynamic dissipation in worst case (full band-
width and black pixel/white pixel picture - see Note
3) is:
P
where f is the video frequency and K the active line
duration / total duration.
Example: for V
V
f
We have: P
Therefore: P
Note: 2
5
VIDEO
DD
STAT
DYN
OUT
V
DD
110V
= 3 V
= 40 V
= V
= 30MHz, C
This worst thermal case must only be
considered for TJmax calculation.
Nevertheless, during the average life of the
circuit, the conditions are very close to the
white picture conditions.
DD
DD
STAT
PP
tot
. I
. C
, I
DD
= 4.41W.
= 2.13W and P
L
8
DD
DD
+ V
L
. V
GNDS
= 8pF and K = 0.72.
OUT(PP)
CC
= 15mA, I
=
13
15
1
7
9
3
. I
OUT3
OUT1
GND1
OUT2
GND2
GND3
110V, V
CC
. f . K
DYN
R
R
R
P
P
P
CC
= 2.28W
CC
= 40mA,
C
C
= 12V,
C
L
L
L