Document Outline
- FEATURES
- GENERAL DESCRIPTION
- ORDERING INFORMATION
- QUICK REFERENCE DATA
- BLOCK DIAGRAM
- PINNING
- LIMITING VALUES
- CHARACTERISTICS
- APPLICATION INFORMATION
- PACKAGE OUTLINE
- SOLDERING
- DEFINITIONS
- LIFE SUPPORT APPLICATIONS
DATA SHEET
Product specification
Supersedes data of April 1993
File under Integrated Circuits, IC02
1996 Oct 25
INTEGRATED CIRCUITS
TDA3508
Video control combination circuit
with automatic cut-off control
1996 Oct 25
2
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
FEATURES
Capacitive coupling of the colour difference and
luminance input signals with black level clamping in the
input stages
Linear saturation control acting on the colour difference
signals
(G
-
Y) and RGB matrix
Linear transmission of inserted signals
Equal black levels for inserted and matrixed signals
Three identical channels for the RGB signals
Linear contrast and brightness controls, operating on
both the inserted and matrixed RGB signals
Peak beam current limiting input
Clamping, horizontal and vertical blanking of the three
input signals controlled by a 3-level sandcastle pulse
Three DC gain controls for the RGB output signals
(white point adjustment)
Emitter-follower outputs for driving the RGB output
stages
Input for automatic cut-off control with compensation for
leakage current of the picture tube.
GENERAL DESCRIPTION
The TDA3508 is an integrated circuit which performs video
control functions in a PAL/SECAM decoder for negative
colour difference signals
-
(R
-
Y) and
-
(B
-
Y).
The required input signals are luminance and colour
difference and a 3-level sandcastle pulse for control
purposes. Linear RGB signals can be inserted from an
external source. RGB output signals are available for
driving the video output stages. The circuit provides
automatic cut-off control of the picture tube.
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA3508
DIP28
plastic dual in-line package; 28 leads (600 mil)
SOT117-1
1996 Oct 25
3
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
QUICK REFERENCE DATA
All voltages referenced to pin 24 (ground).
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
V
P
supply voltage (pin 6)
-
12.0
-
V
I
P
supply current
-
95
-
mA
V
15(p-p)
composite video input signal (pin 15) (peak-to-peak value)
-
0.45
-
V
V
18(p-p)
-
(B
-
Y) colour difference input signal (pin 18)
(peak-to-peak value)
-
1.33
-
V
V
17(p-p)
-
(R
-
Y) colour difference input signal (pin 17)
(peak-to-peak value)
-
1.05
-
V
V
12,13,14(b-w)
inserted RGB signals (black-to-white value)
(pins 12, 13 and 14)
-
1.0
-
V
V
10
3-level sandcastle pulse (pin 10)
level 1
-
2.5
-
V
level 2
-
4.5
-
V
level 3
-
8.0
-
V
V
20
control voltage for brightness (pin 20)
1.0
-
3.0
V
V
19
control voltage for contrast (pin 19)
2.0
-
4.3
V
V
16
control voltage for saturation (pin 16)
2.0
-
4.3
V
T
amb
operating ambient temperature
0
-
70
C
1996 Oct 25
4
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
BLOCK DIAGRAM
handbook, full pagewidth
MSA736
BRIGHTNESS
CONTROL
87
9
BRIGHTNESS
CONTROL
BRIGHTNESS
CONTROL
BRIGHTNESS
CONTROL
CONTRAST
CONTROL
CONTRAST
CONTROL
CONTRAST
CONTROL
clamping pulse
blue
green
red
TRESHOLD
DETECTOR
CURRENT
SOURCE
25
control input
for peak beam
current limiting
contrast control
voltage (2 to 4.3 V)
19
20
brightness
control
voltage
(1 to 3 V)
13
12
14
4.5 V
signal insertion 1 V
(b-w)
Y
AMPLIFIER
10 dB
DRIVER FOR
SIGNAL
SWITCHES
11
input for signal
switching voltage
24
6
V
P
(
+
12 V)
(1 V)
Y
B
MATRIX
Y
G
MATRIX
Y
R
MATRIX
3 x SIGNAL SWITCH
(G
-
Y)
MATRIX
(G
-
Y)
(B
-
Y)
(R
-
Y)
SATURATION
CONTROL
SATURATION
CONTROL
CLAMPING
18
15
CLAMPING
2.9 V
16
saturation
control voltage
(2 to 4.3 V)
clamping pulse
4.4 V
17
CLAMPING
-
(R
-
Y)
(1.05 Vp-p)
-
(B
-
Y)
(1.33 Vp-p)
composite
video
signal
(0.45 Vp-p)
TDA3508
(part A)
Fig.1 Block diagram (continued in Fig.2).
1996 Oct 25
5
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
handbook, full pagewidth
MSA737
CONTROLLED
OUTPUT
STAGE
CONTROLLED
OUTPUT
STAGE
CONTROLLED
OUTPUT
STAGE
1
3
5
blue
2 V B/W
green
2 V B/W
red
2 V B/W
24
28
storage capacitors
for cut-off
control
COMPARATOR
&
V/I
CONVERTER
MR
COMPARATOR
&
V/I
CONVERTER
MG
COMPARATOR
&
V/I
CONVERTER
MB
control current
(3x)
INSERTION
OF BLACK
CURRENT
MEASURING
PULSE
CONTROL
AMPLIFIER
22
21
23
CONTROL
AMPLIFIER
CONTROL
AMPLIFIER
SWITCHING AND
CLAMPING
CIRCUIT
R
G
B
input for
voltage derived
from leakage
current of R
L
and cut-off
currents
(R or G or B)
26
+
clamping
pulse
storage of leakage
current information
INSERTION
OF BLACK
CURRENT
MEASURING
PULSE
INSERTION
OF BLACK
CURRENT
MEASURING
PULSE
line 21 (1)
line 22 (1)
line 23 (1)
COUNTER
&
PULSE
FORMER
lines 21 to 23 (1)
lines 21 (1)
TDA3508
(part B)
BLANKING
BLANKING
BLANKING
SANDCASTLE
DETECTOR
H
H
+
V
H
+
V
sandcastle
pulse
2.5 V
4.5 V
8 V
0
blue
green
red
white point adjustment
(0 to 12 V)
clamping
pulse
10
27
Fig.2 Block diagram (continued from Fig.1).
(1)
After start of vertical blanking pulse.
1996 Oct 25
6
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
PINNING
SYMBOL
PIN
DESCRIPTION
RO
1
red output
CGC
2
green storage capacitor for cut-off
control
GO
3
green output
CBC
4
blue storage capacitor for cut-off
control
BO
5
blue output
V
P
6
supply voltage (+12 V)
CB
7
blue storage capacitor for
brightness
CG
8
green storage capacitor for
brightness
CR
9
red storage capacitor for brightness
SC
10
sandcastle pulse input
FSW
11
fast switch for RGB inputs
BI
12
blue input (external signal)
GI
13
green input (external signal)
RI
14
red input (external signal)
Y
15
luminance input
SAT
16
saturation control input
-
(R
-
Y)
17
colour difference input
-
(B
-
Y)
18
colour difference input
CON
19
contrast control input
BRI
20
brightness control input
WPB
21
white point adjustment input; blue
WPG
22
white point adjustment input; green
WPR
23
white point adjustment input; red
GND
24
ground (0 V)
PBL
25
control input for peak beam current
limiting
ACO
26
automatic cut-off control input
CSL
27
storage capacitor for leakage
current
CRC
28
red storage capacitor for cut-off
control
Fig.3 Pin configuration.
handbook, halfpage
1
2
3
4
5
6
7
8
9
10
11
12
13
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
TDA3508
MSA738
RO
CGC
GO
CBC
BO
V
CB
CG
CR
SC
FSW
BI
GI
RI
P
CRC
CSL
ACO
PBL
GND
WPR
WPG
WPB
BRI
CON
(B Y)
(R Y)
SAT
Y
1996 Oct 25
7
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Note
1. Equivalent to discharging a 200 pF capacitor via a 0
series resistor.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
P
supply voltage on pin 6
0
13.2
V
V
n
input voltage on pins 10, 21, 22, 23, 25 and 26
0
V
P
V
V
11
input voltage on pin 11
-
0.5
+3.0
V
V
16,19,20
input voltage on pins 16, 19 and 20
0
0.5V
P
V
V
n1
voltage on pins 1 to 5, 7 to 9, 12 to 15, 17, 18,
27 and 28
no external DC voltage
V
I
1,3,5
output current on pins 1, 3 and 5
-
-
3
mA
I
19
input current on pin 19
-
10
mA
I
20
input current on pin 20
-
5
mA
I
25
input current on pin 25
-
5
-
mA
P
tot
total power dissipation
-
1.7
W
T
amb
operating ambient temperature
0
70
C
T
stg
storage temperature
-
25
+150
C
V
es
electrostatic handling voltage;
pin 10
note 1
-
500
+450
V
all other pins
note 1
-
500
+500
V
1996 Oct 25
8
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
CHARACTERISTICS
V
P
= 12 V; V
12,13,14(p-p)
= 1 V; V
15(p-p)
= 0.45 V; V
17(p-p)
= 1.05 V; V
18(p-p)
= 1.33 V; T
amb
= 25
C; measured in
application circuit of Fig.4; nominal settings of brightness, contrast, saturation and white point adjustment; all voltages
referenced to ground (pin 24); unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply (pin 6)
V
P
supply voltage
10.8
12.0
13.2
V
I
P
supply current
note 1
-
95
125
mA
Colour difference inputs (pins 17 and 18)
V
17(p-p)
-
(R
-
Y) input signal (pin 17)
(peak-to-peak value)
for saturated colour bar with
75% of maximum amplitude
-
1.05
1.48
V
V
18(p-p)
-
(B
-
Y) input signal (pin 18)
(peak-to-peak value)
for saturated colour bar with
75% of maximum amplitude
-
1.33
1.88
V
I
17,18
input current during scanning
-
-
1.0
A
R
I
input resistance
1.0
-
-
M
V
17,18
internal DC voltage due to clamping
note 2
3.8
4.4
4.8
V
Saturation control (pin 16)
V
16
input control voltages
maximum saturation; note 2
4.0
4.2
4.4
V
nominal saturation 6 dB
below maximum; note 2
2.9
3.1
3.3
V
-
26 dB saturation referenced
to maximum; note 2
1.9
2.1
2.3
V
SAT
min
minimum saturation
V
16
= 1.8 V
46
50
-
dB
I
16
input current
-
-
20
A
(G
-
Y) matrix (see note 3)
Luminance input (pin 15)
V
15(p-p)
composite video input signal
(peak-to-peak value)
-
450
630
mV
I
15
input current during scanning
-
-
1.0
A
R
15
input resistance
0.1
-
-
M
C
15
input capacitance
-
-
5
pF
V
15
input DC voltage due to clamping
note 2
2.5
2.9
3.3
V
m
linearity
nominal settings
0.85
-
-
RGB channels
S
IGNAL SWITCHING INPUT
(
PIN
11)
V
11
normal state voltage; no insertion
0
-
0.4
V
V
11
voltage level for insertion on
0.9
-
3.0
V
C
11
input capacitance
-
-
10
pF
I
11
input current
V
11
= 0 to 3 V
-
100
-
+450
A
1996 Oct 25
9
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
S
IGNAL INSERTION
: RI, GI
AND
BI (
PINS
14, 13
AND
12)
V
14,13,12(b-w)
external RGB input signals
(black-to-white value)
-
1.0
1.4
V
I
14,13,12
input current during scanning
-
-
1.0
A
V
14,13,12
internal DC voltage due to clamping
notes 2 and 4
4.0
4.5
5.0
V
Contrast control (pin 19)
V
19
control voltage
maximum contrast; note 2
4.0
4.2
4.4
V
nominal contrast 3 dB below
maximum; note 2
3.4
3.6
3.8
V
-
10 dB below maximum;
note 2
2.6
2.8
3.0
V
CON
minimum contrast
referenced to maximum;
V
19
= 2 V
18
21
29
dB
I
19
input current
V
25
> 6 V
-
-
2.0
A
RGB
diff
difference between RGB channels
contrast
-
10 dB below
maximum
-
-
0.6
dB
Peak beam current limiting (pin 25)
V
25
internal DC bias voltage
note 2
5.3
5.5
5.7
V
R
25
input resistance
-
10
-
k
I
19
input current at contrast control
input
V
25
= 4.5 V
10
20
34
mA
Brightness control (pin 20)
V
20
control voltage
note 2
1.0
-
3.0
V
I
20
input current
no beam current limiting
-
-
-
10
A
V
blk(b-w)
shift of black level in the control
range referenced to the luminance
signal (black-to-white value)
V
20
= 1 V
-
50
-
%
tracking
95
-
-
%
Internal signal limiting (RGB)
signal limiting referenced to nominal
luminance and nominal black level
black
-
-
25
-
%
white
115
120
125
%
White point adjustment (pins 21, 22 and 23); note 2
G
v
AC voltage gain
V
21,22,23
= 5.5 V; note 5
-
100
-
%
V
21,22,23
= 0 V; note 5
-
35
-
40
-
%
V
21,22,23
= 12 V; note 5
+35
+40
-
%
R
I
input resistance
-
20
-
k
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
1996 Oct 25
10
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
RGB outputs (emitter follower; pins 1, 3 and 5)
V
1,3,5
output voltage
black-to-white positive
1.5
2.0
2.5
V
V
1,3,5
black level without automatic cut-off
control
V
28,2,4
= 10 V; note 2
6.1
6.9
7.7
V
V
1,3,5
difference in black level between
RGB channels due to variation of
contrast control
-
-
10
mV
V
1,3,5
cut-off control range
note 2
4.0
4.6
-
V
I
1,3,5
internal current source
2.0
3.0
-
mA
Automatic cut-off control (pin 26); notes 2, 6, 7, 8 and 9
V
26
input voltage
0
-
6.5
V
V
26
voltage difference between cut-off
current measurement and leakage
current measurement
0.5
0.64
0.72
V
Gain data (at nominal brightness, contrast, saturation and white point settings)
G
v1,3,5-15
voltage gain with respect to
luminance input (pin 15)
14
16
18
dB
1,3,5-15
frequency response of luminance
path
f
i
= 0 to 5 MHz
-
-
3
dB
G
v
voltage gain with respect to colour
difference inputs
(pins 1 to 17 and 5 to 18)
3
6
9
dB
frequency response of colour
difference paths
(pins 1 to 17 and 5 to 18)
f
i
= 0 to 2 MHz
-
-
3
dB
G
v
voltage gain with respect to inserted
signals (pins 1 to 14, 3 to 13
and 5 to 12)
4
6
8
dB
frequency response of inserted
signal paths (pins 1 to 14, 3 to 13
and 5 to 12)
f
i
= 0 to 10 MHz
-
-
3
dB
t
r
rise time of RGB output signals
(pins 1, 3 and 5)
-
40
-
ns
t
f
fall time of RGB output signals
(pins 1, 3 and 5)
-
40
-
ns
t
1,3,5
difference in transition times
between R, G and B channels
-
0
15
ns
t
d
delay time between signal switching
and signal insertion
-
25
-
+25
ns
G
v1,3,5
difference in gain between normal
and signal insertion mode
-
-
10
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
1996 Oct 25
11
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
Notes
1. Maximum value <110 mA after warm-up.
2. Values are proportional to the supply voltage.
3. Matrixed according to equation V
(G
-
Y)
=
-
0.51V
(R
-
Y)
-
0.19V
(B
-
Y)
.
4. When V
11-24
< 0.4 V during clamping time, the black levels of the inserted RGB signals are clamped on the black
levels of the internal RGB signals. When V
11-24
> 0.9 V during clamping time, the black levels of the inserted RGB
signals are clamped on an internal DC voltage (correct clamping of the external RGB signals is possible only when
they are synchronous with the sandcastle pulse).
5. When pins 21, 22 and 23 are not connected, an internal bias voltage of 5.5 V is supplied.
6. Automatic cut-off control measurement occurs in the following lines after start of the vertical blanking pulse:
a) line 20: measurement of leakage current (R + G + B).
b) line 21: measurement of red cut-off current.
c) line 22: measurement of green cut-off current.
d) line 23: measurement of blue cut-off current.
7. Black level of the measured channel is nominal; the other two channels are blanked to ultra-black.
8. All three channels blanked to ultra-black. The cut-off control cycle occurs when the vertical blanking part of the
sandcastle pulse contains more than 3 line pulses. The internal blanking continues until the end of the last measured
line. The vertical blanking pulse is not allowed to contain more than 34 line pulses, otherwise another control cycle
begins.
9. Input pin 26 switches to ground during horizontal flyback.
10. The sandcastle pulse is compared with three internal thresholds (proportional to V
P
) and the given levels separate
the various pulses.
11. Blanked to ultra-black (
-
25%).
12. Pulse duration
3.5
s.
Sandcastle pulse detector (pin 10)
V
10
the following amplitudes are
required for separating the various
pulses
horizontal and vertical
blanking; notes 10 and 11
1.0
1.5
2.0
V
required pulses (H + V);
note 10
2.1
2.5
2.9
V
horizontal; note 10
3.0
3.5
4.0
V
required pulses (H); note 10
4.1
4.5
5.0
V
clamping; notes 10 and 12
6.5
7.0
7.5
V
required pulses; note 10
7.6
-
12.0
V
no keying; note 10
-
-
1.0
V
I
10
input current
-
-
-
110
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
1996 Oct 25
12
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
APPLICATION INFORMATION
22 pF
(2)
22 pF
(2)
22 pF
(2)
10
pF
(2)
10
pF
(2)
10
pF
(2)
BF423
1N4148
1N4148
BF869
18 k
100
k
33
k
1.5
k
100
k
1.5
k
33
k
33
k
100
k
560
680
1.5
k
1.6
k
1.6
k
180
180
180
75
8.2 k
10 k
100 k
240 k
680 k
56 k
5.6
k
56 k
560
10
k
10
k
10
k
910 k
15 k
1.5 k
180 k
22 k
1 k
56 k
1
k
3.9 k
75
75
75
22
H
22
F
22
F
1.6
k
560
820
18 k
560
820
18 k
560
820
-
B
22
H
22
F
4.7
F
22
F
+
200 V
1N4148
BF869
BC558
BC558
BF869
BF869
BF423
1N4148
1N4148
BF869
-
G
-
R
BF423
1N4148
1N4148
BF869
BC558
BC558
1 nF
MSA735
22 nF
22 nF
22 nF
(1)
(1)
(1)
(1)
22 nF
22 nF
22 nF
330 nF
330 nF
+
12 V
(to other circuitry)
+
12 V
(VP)
1 V
sandcastle
pulse
signal switch
pulse
signal
insertion
B 1 V (b-w)
G 1 V (b-w)
R 1 V (b-w)
TDA3508
1
2
3
4
5
6
7
8
9
10
11
12
13
14
19
18
17
16
15
23
22
21
20
27
26
25
24
28
330 nF
100 nF
+
12 V
1N4148
1N4148
Y
delay line
22 nF
22 nF
22 nF
22 nF
+
12 V
R
G
B
1N4148
100 nF
+
12 V
+
12 V
1N4148
100 pF
1N4148
dark current
beam current
(actual value)
Y
(1 V composite
video signal)
saturation
0 to 12 V
-
(R
-
Y)
1.05 V (p-p)
-
(B
-
Y)
1.33 V (p-p)
contrast
0 to 12 V
brightness
0 to 12 V
peak beam current
limiting (actual value)
G
R
B
Fig.4 Typical application circuit diagram using TDA3508; colour difference inputs are negative.
(1) When supplied via a 75
line.
(2) Capacitor value depends on circuit layout.
1996 Oct 25
13
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
PACKAGE OUTLINE
UNIT
A
max.
1
2
b
1
(1)
(1)
(1)
c
D
E
w
e
M
H
L
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
EIAJ
mm
inches
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
SOT117-1
92-11-17
95-01-14
A
min.
A
max.
b
Z
max.
M
E
e
1
1.7
1.3
0.53
0.38
0.32
0.23
36.0
35.0
14.1
13.7
3.9
3.4
0.25
2.54
15.24
15.80
15.24
17.15
15.90
1.7
5.1
0.51
4.0
0.066
0.051
0.020
0.014
0.013
0.009
1.41
1.34
0.56
0.54
0.15
0.13
0.01
0.10
0.60
0.62
0.60
0.68
0.63
0.067
0.20
0.020
0.16
051G05
MO-015AH
M
H
c
(e )
1
M
E
A
L
seating plane
A
1
w
M
b
1
e
D
A
2
Z
28
1
15
14
b
E
pin 1 index
0
5
10 mm
scale
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
handbook, full pagewidth
DIP28: plastic dual in-line package; 28 leads (600 mil)
SOT117-1
1996 Oct 25
14
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
SOLDERING
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our
"IC Package Databook" (order code 9398 652 90011).
Soldering by dipping or by wave
The maximum permissible temperature of the solder is
260
C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.
The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T
stg max
). If the
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.
Repairing soldered joints
Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300
C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400
C, contact may be up to 5 seconds.
DEFINITIONS
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
1996 Oct 25
15
Philips Semiconductors
Product specification
Video control combination circuit with
automatic cut-off control
TDA3508
NOTES
Internet: http://www.semiconductors.philips.com
Philips Semiconductors a worldwide company
Philips Electronics N.V. 1996
SCA52
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Printed in The Netherlands
537021/1200/02/pp16
Date of release: 1996 Oct 25
Document order number:
9397 750 00968
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