Video control combination circuit
with automatic cut-off control
Product specification
File under Integrated Circuits, IC02
November 1987
Page 2
Philips SemiconductorsProduct specification
Video control combination circuit with
automatic cut-off control
TDA3505
TDA3506
GENERAL DESCRIPTION
The TDA3505 and TDA3506 are monolithic integrated circuits which perform video control functions in a PAL/SECAM
decoder. The TDA3505 is for negative colour difference signals −(R-Y), −(B-Y) and the TDA3506 is for positive colour
difference signals +(R-Y), +(B-Y).
The required input signals are: luminance and colour difference (negative or positive) 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 circuits provide automatic cut-off control of the picture tube.
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
• 3 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
• 3 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
QUICK REFERENCE DATA
PARAMETERCONDITIONSSYMBOLMIN.TYP.MAX.UNIT
Supply voltage (pin 6)V
Supply currentI
= V
P
P=I6
6-24
−12−V
−95−mA
Composite video input
signal (peak-to-peak value)V
15-24(p-p)
−0,45−V
Colour difference input
signals (peak-to-peak value)
−(B-Y) or +(B-Y) respectivelyV
−(R-Y) or +(R-Y) respectivelyV
18-24(p-p)
17-24(p-p)
−1,33−V
−1,05−V
Inserted RGB signalsV
(black-to-white value)V
Three-level sandcastle pulseV
12,13,14-24
10-24
−1,0−V
−2,5−V
−4,5−V
−8,0−V
Control voltage ranges
brightnessV
contrastV
saturationV
20-24
19-24
16-24
1,0−3,0V
2,0−4,3V
2,0−4,3V
PACKAGE OUTLINE
28-lead DIL; plastic (SOT117); SOT117-1; 1996 November 20.
November 19872
Page 3
Philips SemiconductorsProduct specification
Video control combination circuit with
automatic cut-off control
TDA3505
TDA3506
November 19873
Fig.1 Part of block diagram; continued in Fig. 2
Note Colour difference inputs are negative for TDA3505 or positive for TDA3506.
Page 4
Philips SemiconductorsProduct specification
Video control combination circuit with
automatic cut-off control
TDA3505
TDA3506
November 19874
Fig.2 Part of block diagram; continued from Fig. 1
Page 5
Philips SemiconductorsProduct specification
Video control combination circuit with
automatic cut-off control
PINNING
PINDESCRIPTION
1red output
2green storage capacitor for cut-off control
3green output
4blue storage capacitor for cut-off control
5blue output
6positive supply voltage (+ 12 V)
7blue storage for brightness
8green storage for brightness
9red storage for brightness
10sandcastle pulse input
11fast switch for RGB inputs
12blue input (external signal)
13green input (external signal)
14red input (external signal)
15luminance input
16saturation control input
17colour difference input − (R-Y) or +(R-Y) respectively
18colour difference input − (B-Y) or + (B-Y) respectively
19contrast control input
20brightness control input
21white point adjustment, blue
22white point adjustment, green
23white point adjustment, red
24ground (0 V)
25control input for peak beam current limiting
26automatic cut-off control input
27storage capacitor for leakage current
28red storage capacitor for cut-off control
TDA3505
TDA3506
November 19875
Page 6
Philips SemiconductorsProduct specification
Video control combination circuit with automatic
cut-off control
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC134)
PARAMETERSYMBOLMIN.MAX.UNIT
Supply voltage (pin 6)V
P=V6-24
Voltage ranges
at pins 10, 21, 22, 23, 25, 26V
at pin 11V
at pins 16, 19, 20V
n-24
11-24
16, 19, 20-24
at pins 1, 2, 3, 4, 5, 7, 8, 9,
12, 13, 14, 15, 17, 18, 27, 28no external DC voltage
Currents
at pins 1, 3, 5−I
at pin 19I
at pin 20I
at pin 25−I
Total power dissipationP
Storage temperature rangeT
Operating ambient temperature rangeT
1, 3, 5
19
20
25
tot
stg
amb
−13,2V
0V
−0,53,0V
00,5V
−3mA
−10mA
−5mA
−5mA
−1,7W
−25+150°C
0+70°C
P
P
TDA3505
TDA3506
V
V
November 19876
Page 7
Philips SemiconductorsProduct specification
Video control combination circuit with automatic
cut-off control
TDA3505
TDA3506
CHARACTERISTICS
V
P=V6-24
= 12,0 V; V
12, 13, 14(p-p)
= 1,0 V; V
15-24(p-p)
= 0,45 V; V
17-24(p-p)
= 1,05 V; V
18-24(p-p)
= 1,33 V; T
amb
=25°C;
measured in Fig.3; nominal settings of brightness, contrast, saturation and white point adjustment; all voltages are
referred to pin 24; unless otherwise specified
PARAMETERCONDITIONSSYMBOLMIN.TYP.MAX.UNIT
Supply (pin 6)
Supply voltageV
Supply currentI
P=V6
P
10,812,013,2V
−95125
(1)
mA
Colour difference inputs
(pins 17, 18)
(R-Y) input signal (pin 17)for saturated
(peak-to-peak value)colour bar with
75% of maximum
amplitudeV
17(p-p)
−1,051,48V
(B-Y) input signal (pin 18)for saturated
(peak-to-peak value)colour bar with
75% of maximum
amplitudeV
Input current during scanningI
Input resistanceR
18(p-p)
17, 18
17, 18-24
−1,331,88V
−−1,0µA
1,0−−MΩ
Internal DC voltage due
to clampingnote 2V
17, 18
3,84,44,8V
Saturation control (pin 16)
Control voltage for
maximum saturationnote 2V
16
4,04,24,4V
Control voltage for
nominal saturation6 dB below max.
note 2V
16
2,93,13,3V
Control voltage for −26 dB
saturation referred to
maximumnote 2V
Minimum saturationV
= 1,8 Vd4650−dB
16
Input currentI
16
16
1,92,12,3V
−−20µA
(G-Y) matrix
Matrixed according to the equation V
(G-Y)
= − 0,51 V
(R-Y)
− 0,19 V
November 19877
(B-Y)
Page 8
Philips SemiconductorsProduct specification
Video control combination circuit with automatic
cut-off control
TDA3505
TDA3506
PARAMETERCONDITIONSSYMBOLMIN.TYP.MAX.UNIT
Luminance input (pin 15)
Composite video input signal
(peak-to-peak value)V
Input resistanceR
Input capacitanceC
Input current during scanningI
15(p-p)
15-24
15-24
15
−450630mV
100−−kΩ
−−5pF
−−1µA
Linearitynominal settingsm0,85−−
Internal DC voltage due to
clampingnote 2V
15
2,52,93,3V
RGB channels
Signal switching input (pin 11)
Normal state; no insertionV
Level for insertion-onV
Input capacitanceC
Input currentV
= 0 to 3 VI
11
11
11
11-24
11
0−0,4V
0,9−3,0V
−−10pF
−100−+450µA
Signal insertion
(pins 12, 13, 14)
External RGB input signals
(black-to-white value)V
Input current during scanningI
12, 13, 14
12, 13, 14
−1,01,4V
−−1,0µA
Internal DC voltage due to
clampingnotes 2, 3V
12, 13, 14
4,04,55,0V
Contrast control (pin 19)
note 2
Control voltage for
maximum contrastV
19
4,04,24,4V
Control voltage for
nominal contrast3 dB below max.V
19
3,43,63,8V
Control voltage for
−10 dB below max.V
19
2,62,83,0V
Minimum contrast
referred to max.V19=2Vd182129dB
Input currentV
> 6VI
25
19
−−2µA
Difference between
RGB channelscontrast −10 dB
below max.−−0,6dB
November 19878
Page 9
Philips SemiconductorsProduct specification
Video control combination circuit with automatic
cut-off control
TDA3505
TDA3506
PARAMETERCONDITIONSSYMBOLMIN.TYP.MAX.UNIT
Peak beam current limiting
(pin 25)
Internal DC bias voltagenote 2V
Input resistanceR
25
25-24
5,35,55,7V
−10−kΩ
Input current at contrast
control inputV25= 4,5 VI
Brightness code (pin 20)
note 2
Control voltage rangeV
Input current−I
19
20
20
102034mA
1−3V
−−10µA
Change of black level in the
control range related to
the luminance signal
(black/white)∆V
=1 V−±50−%
20
Tracking95−−%
Internal signal limiting (RGB)
Signal limiting referred to
nominal luminance and
nominal black level
black−−25−%
white115120125%
White point adjustment
(pins 21, 22, 23)note 2
AC voltage gainnote 4
V
21, 22, 23
V
21, 22, 23
V
21, 22, 23
= 5,5 VG
= 0VG
= 12 VG
Input resistanceR
v
v
v
21,22,23-24
−100−%
−35−40−%
+35+40−%
−20−kΩ
November 19879
Page 10
Philips SemiconductorsProduct specification
Video control combination circuit with automatic
cut-off control
PARAMETERCONDITIONSSYMBOLMIN.TYP.MAX.UNIT
RGB outputs
(emitter follower) (pins 1, 3, 5)
Output voltage;
black-to-white positiveV
Black level without
automatic cut-off controlnote 2;
V
= 10 VV
28,2,4
Difference in black level
between RGB channels
due to variation of contrast
control∆V
Cut-off control rangenote 2V
Internal current sourceI
Automatic cut-off control
(pin 26)notes 2, 5
Input voltage rangeV
Voltage difference between
cut-off current
measurement (note 6)
and leakage current
measurement (note 7)V
1, 3, 5
1, 3, 5
1, 3, 5
1, 3, 5
1, 3, 5
26
26
TDA3505
TDA3506
1,52,02,5V
6,16,97,7V
−−10mV
4,04,6−V
2,03,0−mA
0−6,5V
0,50,640,72V
Input pin 26 switches to ground during horizontal flyback
Gain data
at nominal brightness,
contrast, saturation
and white point
settings
Voltage gain with respect to
luminance input (pin 15)G
Frequency response of
luminance path0 to 5 MHzd
Voltage gain with respect to
colour difference inputs
(pins 17 and 18)G
Frequency response of
colour difference paths0 to 2 MHzd
November 198710
1,3,5-15
1,3,5-15
5-18
G
1-17
5-18
d
1-17
141618dB
−−3dB
369dB
−−3dB
Page 11
Philips SemiconductorsProduct specification
Video control combination circuit with automatic
cut-off control
Video control combination circuit with automatic
cut-off control
Notes
1. < 110 mA after warm-up.
2. Values are proportional to the supply voltage.
3. When V
levels of the internal RGB signals.
When V
DC voltage (correct clamping of the external RGB signals is possible only when they are synchronous with the
sandcastle pulse).
4. When pins 21, 22 and 23 are not connected, an internal bias voltage of 5,5 V is supplied.
5. Automatic cut-off control measurement occurs in the following lines after start of the vertical blanking pulse:
line 20: measurement of leakage current (R + G + B)
line 21: measurement of red cut-off current
line 22: measurement of green cut-off current
line 23: measurement of blue cut-off current
6. Black level of the measured channel is nominal; the other two channels are blanked to ultra-black.
7. 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.
8. The sandcastle pulse is compared with three internal thresholds (proportional to VP) and the given levels separate
the various pulses.
9. Blanked to ultra-black (−25%).
10. Pulse duration ≥ 3,5 µs.
< 0,4 V during clamping time - the black levels of the inserted RGB signals are clamped on the black
11-24
> 0,9 V during clamping time - the black levels of the inserted RGB signals are clamped on an internal
11-24
TDA3505
TDA3506
November 198712
Page 13
Philips SemiconductorsProduct specification
Video control combination circuit with automatic
cut-off control
TDA3505
TDA3506
(1) When supplied via a 75 Ω line.
(2) Capacitor value depends on circuit layout.
Fig.3Typical application circuit diagram using TDA3505 or TDA3506; colour difference inputs are negative for
TDA3505 or positive for TDA3506.
November 198713
Page 14
Philips SemiconductorsProduct specification
Video control combination circuit with automatic
cut-off control
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
A
A
UNIT
inches
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
max.
mm
12
min.
max.
b
1.7
1.3
0.066
0.051
b
0.53
0.38
0.020
0.014
cD EweM
1
0.32
0.23
0.013
0.009
(1)(1)
36.0
35.0
1.41
1.34
14.1
13.7
0.56
0.54
E
14
(1)
L
3.9
3.4
M
E
15.80
15.24
0.62
0.60
H
17.15
15.90
0.68
0.63
0.252.5415.24
0.010.100.60
e
1
0.15
0.13
Z
max.
1.75.10.514.0
0.0670.200.0200.16
OUTLINE
VERSION
SOT117-1
IEC JEDEC EIAJ
051G05MO-015AH
REFERENCES
November 198714
EUROPEAN
PROJECTION
ISSUE DATE
92-11-17
95-01-14
Page 15
Philips SemiconductorsProduct specification
Video control combination circuit with
automatic cut-off control
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”
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
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.
(order code 9398 652 90011).
). If the printed-circuit board has been pre-heated, forced cooling may
stg max
TDA3505
TDA3506
DEFINITIONS
Data sheet status
Objective specificationThis data sheet contains target or goal specifications for product development.
Preliminary specificationThis data sheet contains preliminary data; supplementary data may be published later.
Product specificationThis 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.
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.
November 198715
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