TDA3561AN [NXP]
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| 型号： | TDA3561AN |
| 厂家： | 
NXP |
| 描述： | 暂无描述 解码器 商用集成电路 光电二极管 |
| 文件： | 总14页 (文件大小：169K) |
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INTEGRATED CIRCUITS
DATA SHEET
TDA3561A
PAL decoder
September 1982
Product specification
File under Integrated Circuits, IC02
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
GENERAL DESCRIPTION
The TDA3561A is a decoder for the PAL colour television standard. It combines all functions required for the identification
and demodulation of PAL signals. Furthermore it contains a luminance amplifier, an RGB-matrix and amplifier. These
amplifiers supply output signals up to 5 V peak-to-peak (picture information) enabling direct drive of the discrete output
stages. The circuit also contains separate inputs for data insertion, analogue as well as digital, which can be used for
text display systems (e.g. (Teletext/broadcast antiope), channel number display, etc. Additional to the TDA3560, the
circuit includes the following features:
• The peak white limiter is only active during the time that the 9,3 V level at the output is exceeded. The start of the
limiting function is delayed by one line period. This avoids peak white limiting by test patterns which have abrupt
transitions from colour to white signals.
• The brightness control is obtained by inserting a variable pulse in the luminance channel. Therefore the ratio of
brightness variation and signal amplitude at the three outputs will be identical and independent of the difference in gain
of the three channels. Thus discolouring due to adjustment of contrast and brightness is avoided.
• Improved suppression of the internal RGB signals when the device is switched to external signals, and vice versa.
• Non-synchronized external RGB signals do not disturb the black level of the internal signals.
• Improved suppression of the residual 4,4 MHz signal in the RGB output stages.
• Cascoded stages in the demodulators and burst phase detector minimize the radiation of the colour demodulator
inputs.
• High current capability of the RGB outputs and the chrominance output.
QUICK REFERENCE DATA
Supply voltage
V1−27
type. 12
typ. 85
typ. 0,45
55 to 1100
V
Supply current
I1
mA
V
Luminance input signal (peak-to-peak value)
Chrominance input signal (peak-to-peak value)
Data input signals (peak-to-peak value)
RGB output signals at nominal contrast
and saturation (peak-to-peak value)
Contrast control range
V10-27(p-p)
V3-27(p-p)
V13, 15, 17-27(p-p)
mV
V
typ.
1
V12, 14, 16-27(p-p)
typ. 5,25
typ. 20
min. 50
min. 0,9
typ. 1,5
V
dB
dB
V
Saturation control range
Input voltage for data insertion
Blanking input voltage
V9-27
V8-27
V8−27
V
Burst gating and black-level gating input voltage
typ.
7
V
PACKAGE OUTLINE
28-lead DIL; plastic (SOT 117); SOT117-1; 1996 November 21.
September 1982
2
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
September 1982
3
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage
VP = V1-27
Ptot
max. 13,2
max. 1,7
V
Total power dissipation; see also Fig.2
Storage temperature range
Operating ambient temperature range
W
Tstg
−25 to + 150 °C
−25 to + 65 °C
Tamb
THERMAL RESISTANCE
From junction to ambient
Rth j-a
=
50
K/W
CHARACTERISTICS
VP = V1-27 = 12 V; Tamb = 25 °C; unless otherwise specified
Supply voltage
Supply current
VP = V1−27
typ.
12
V
V
8 to 13,2
typ. 85
mA
mA
W
<
115
typ. 1,0
Total power dissipation
Ptot
<
1,4
W
Luminance input (pin 10)
Input voltage (peak-to-peak value); note 1
Input level before clipping
V10-27(p-p)
V10−27
typ. 0,45
V
<
2
V
typ. 0,15
µA
µA
dB
V
Input current; input level 2 V, clamp not active
I10
<
1
Contrast control range (see Fig.3)
−17 to + 3
Control voltage for 40 dB attenuation
Input current contrast control at V7−27 = 3 V
V7-27
I7
typ. 1,2
<
10
µA
Chrominance amplifier
Input voltage (peak-to-peak value); note 2
V3-27 (p-p)
typ. 550
55 to 1100
mV
mV
kΩ
kΩ
pF
typ.
9
Input impedance
Input capacitance
|Z3−27|
6 to 12
typ.
<
4
C3−27
6
pF
A.C.C. control range
>
30
dB
Change of the burst signal at the output
over the whole control range
Gain at nominal contrast/saturation
pin 3 to pin 28; note 3
<
1,5
32
dB
dB
>
Output signal (peak-to-peak value)
at nominal contrast/saturation;
burst signal: 0,5 V peak to peak
V28-27(p-p)
typ.
1,7 V
September 1982
4
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
Maximum output voltage (peak-to-peak value)
RL = 2 kΩ
V28-27(p-p)
typ. 4,0
V
Distortion of chrominance amplifier
typ. 1,5
%
at V28-27(p-p) = 2 V up to V3-27(p-p) = 1 V
d
<
5
%
Frequency response between 0 and 5 MHz
Saturation control range (see Fig.4)
Input current saturation control at V6−27 = 3 V
Tracking between luminance and chrominance
with contrast control over a range of 10 dB
Cross-coupling between luminance
and chrominance amplifier; note 10
Signal-to-noise ratio
−2
50
15
dB
dB
µA
>
<
I6
<
<
>
<
2
dB
dB
dB
−46
56
at nominal input signal; note 11
S/N
Phase shift between burst and chrominance
at nominal contrast/saturation
∆ ϕ
± 5o
Output impedance of chrominance amplifier
Maximum output current
Z28-27
I28
typ. 25
Ω
<
15
mA
Reference part
Phase locked loop:
− catching range; note 4
>
500
Hz
Hz
typ. 700
< 5°
− phase shift; note 5
Oscillator:
− temperature coefficient of oscillator frequency; note 4
− frequency deviation for VP changing from 10 to 13,2 V; note 4
typ. −1,5
typ. 40
Hz/K
Hz
Ω
typ. 340
260 to 420
− input resistance (pin 26)
− input capacitance (pin 26)
− output resistance (pin 25)
R26-27
Ω
C26-27
<
10
typ. 150
100 to 200
pF
Ω
R25-27
Ω
− output voltage (peak-to-peak value; pin 25)
A.C.C. generation:
V25−27(p-p)
typ. 700
mV
− reference voltage (pin 4)
V4−27
V2−27
V2−27
V2−27
V2−27
V2−27
typ. 4,9
typ. 5,1
typ. 2,65
typ. 3,15
typ. 3,4
typ. 1,9
V
V
V
V
V
V
− control voltage at nominal input signal (pin 2)
− control voltage without chrominance input (pin 2)
− colour-off voltage (pin 2)
− colour-on voltage (pin 2)
− identification-on voltage (pin 2)
September 1982
5
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
− change in burst amplitude with supply voltage (± 10%)
− change in burst amplitude with temperature
proportional
typ. 0,1
%/K
%/K
V
<
0,25
− voltage at pin 5 at nominal input signal
V5−27
typ.
5
Demodulator part
Input burst signal amplitude (peak-to-peak value)
between pins 21 and 22; note 6
Input impedance between pins 21 and 22
Ratio of demodulated signals for equal input
signals at pins 21 and 22
V21−22(p-p)
Z21−22
typ. 100
typ.
mV
2
kΩ
(B-Y)/(R-Y)
typ. 1,78 ± 10%
typ. −0,51 ± 10%
typ. −0,19 ± 25%
−3
V16 – 27
------------------
V12 – 27
(G-Y)/(R-Y); no (B-Y) signal
(G-Y)/(B-Y); no (R-Y) signal
V 14 – 27
------------------
V12 – 27
V 14 – 27
------------------
V16 – 27
Frequency response between 0 and 1 MHz
Cross talk between colour demodulated signals
Phase difference between (R-Y) signal
and (R-Y) reference signal
dB
dB
>
40
<
5°
Phase difference between (R-Y)
typ. 90°
85 to 95°
and (B-Y) reference signals
R.G.B. matrix and amplifiers
Output voltage (peak-to-peak value)
at nominal luminance/contrast
(black to white); note 3
typ. 5,4
4,5 to 6,3
V12,14,16-27(p-p)
V
V
Output voltage (peak-to-peak value) of the RED
channel at nominal contrast/saturation and
no luminance signal at the input, (R-Y) signal
V12-27(p-p)
typ. 5,25
3,7 to 6,7
V
V
Maximum peak white level; note 7
typ. 9,3
9,0 to 9,6
15
V
V
Maximum output current
I12,14,16
V12,14,16-27
∆V
<
mA
Black level at the output for a
brightness control voltage of 2 V
Difference in black level between the three
channels at an output level of 3 V; note 8
Black level shift with vision contents
Brightness control voltage range
typ. 2,6
V
<
<
200
40
mV
mV
see Fig.5
September 1982
6
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
Input current brightness control
I11
<
50
µA
typ. 0,35
mV/K
mV/K
mV
mV
%
Variation of black level with temperature
∆V
<
1,0
typ. 10
Variation of black level with contrast control
∆V
<
200
Relative spread between the R, G and B output signals
Relative black-level variation between the three channels
during variation of contrast and supply voltage
Differential black-level drift over a
<
10
0
typ.
<
mV
mV
20
temperature range of 40 °C
typ.
0
mV
mV
V
<
20
Blanking level at the RGB outputs
typ. 2,1
1,9 to 2,3
V
Difference in blanking level
of the three channels
typ.
typ.
0
0
mV
mV
Differential blanking level drift
over a temperature range of 40 °C
Tracking of output black level
with supply voltage
typ. 1,1
∆Vbl V P
×
----------- ----------
Vbl ∆ V P
Signal-to-noise ratio of output signals;
note 11
S/N
>
62
dB
mV
mV
mV
mV
Ω
Residual 4,4 MHz signal at RGB outputs
(peak-to-peak value)
typ. 40
<
150
Residual 8,8 MHz signal and higher harmonics
at the RGB outputs (peak-to-peak value)
Output impedance of RGB outputs
Frequency response of total luminance and
RGB amplifier circuits for f = 0 to 5 MHz
typ. 75
<
150
Z12,14,16-27
typ. 50
<
−3
dB
Signal insertion (pins 13,15 and 17)
Input signals (peak-to-peak value) for
an RGB output voltage of 5 V peak-to-peak
typ.
1
V
V
V13,15,17-27(p-p)
0,85 to 1,1
Difference between the black levels of the
RGB signals and the inserted signals
at the output; note 9
∆V
<
260
mV
typ. 40
ns
ns
ns
ns
µA
Output rise time
tr
<
80
0
typ.
<
Differential delay time for the three channels
Input current
td
40
10
I13,15,17
<
September 1982
7
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
Data blanking (pin 9)
Input voltage for no data insertion
Input voltage for data insertion
Maximum input voltage
Delay of data blanking
V9-27
V9−27
V9−27
td
<
>
<
<
<
0,4
V
0,9
3
V
V
20
35
ns
µA
kΩ
Input current
I9
Input impedance
Z9-27
typ. 10
Suppression of the internal RGB signals
when V9−27 > 0,9 V
>
46
dB
Sandcastle input (pin 8)
Level at which the RGB blanking
typ. 1,5
1 to 2
V
V
is activated
V8-27
Level at which burst gating and
clamping pulse are separated
typ. 7,0
6, 5 to 7,5
V
V
V8-27
Delay between black level clamping and
burst gating pulse
td
typ. 0,4
µs
Input current for:
V8-27 = 0 to 1 V
−I8
I8
<
1
mA
µA
V8-27 = 1 to 8,5 V
typ. 20
V8-27 = 8,5 to 12 V
I8
<
2
mA
Notes to the characteristics
1. Signal with the negative-going sync; amplitude includes sync pulse amplitude.
2. Indicated is a signal for a colour bar with 75% saturation, so chrominance to burst ratio is 2,2 : 1.
3. Nominal contrast is specified as the maximum contrast −3 dB and nominal saturation as the maximum saturation
−6 dB.
4. All frequency variations are referred to the 4,4 MHz carrier frequency.
5. For ± 400 Hz deviation of the oscillator frequency.
6. These signal amplitudes are determined by the a.c.c. circuit of the reference part.
7. When this level is exceeded, the amplitude of the output signal is reduced via a discharge of the capacitor at pin 7
(contrast control). The start of the peak white limiting action has a delay of one line period.
8. The variation of the black level depends directly on the gain of each channel during brightness control in the three
channels. As a consequence, the black levels at the outputs (for output levels above or below 3 V) can have a
difference which exceeds 200 mV. Because the amplitude and the black level change with brightness control have
a direct relationship, no discolouring can occur, caused by adjustment of contrast and brightness.
9. This difference occurs when the source impedance of the data signal inputs is 150 Ω and the black level clamp pulse
duration is 4 µs (sandcastle pulse). A lower difference is obtained when the impedance is lower.
10. Cross-coupling is measured under the following condition. Input signals nominal, contrast and saturation such that
nominal output signals are obtained. The signals at the output at which no signal should be available must be
compared with the nominal output signal at that output.
11. The signal-to-noise ratio is specified as peak-to-peak signal with respect to r.m.s. noise.
September 1982
8
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
Fig.2 Power derating curve.
Fig.3 Contrast control voltage range.
Fig.4 Saturation control voltage range.
Fig.5 Brightness control voltage range.
September 1982
9
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
APPLICATION INFORMATION
Fig.6 Application circuit.
Adjustments (see Fig.6)
C1
L1
L2
L3
L4
L5
P1
8,8 MHz oscillator
phase delay line
= 10,7 µH
nominal value
= 10,7 µH
4,4 MHz chrominance input filter
= 10,7 µH = L1
= 5,6 µH
4,4 MHz trap in luminance signal line
delay equalization
= 66,1 µH
amplitude of direct chroma signal
R1
R1
R2
----------------------
field blanking
x field blanking amplitude 2,0 V to 6,5 V.
R1 + R2
For a video input voltage of 1 V peak-to-peak: R3 can be omitted; R4 = 1 kΩ; R5 must be short-circuited; R6 = 1 kΩ.
September 1982 10
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
When the saturation control pin is connected to the power
supply the colour killer circuit is overruled so that the colour
signal is visible on the screen. In this way it is possible to
adjust the oscillator frequency without using a frequency
counter (see also pins 25 and 26).
APPLICATION INFORMATION
The function is described against the corresponding pin
number.
1. + 12 V power supply
7. Contrast control
The circuit gives good operation in a supply voltage range
between 8 and 13,2 V provided that the supply voltage for
the controls is equal to the supply voltage for the
TDA3561A. All signal and control levels have a linear
dependency on the supply voltage. The current taken by
the device at 12 V is typically 85 mA. It is linearly
dependent on the supply voltage.
The contrast control range is 20 dB for a control voltage
change from + 2 to + 4 V. Contrast control is a linear
function of the control voltage. The output signal is
suppressed when the control voltage is 1 V or less. If one
or more output signals surpasses the level of 9 V the peak
white limiter circuit becomes active and reduces the output
signals via the contrast control by discharging C2 via an
internal current sink.
2. Control voltage for identification
This pin requires a detection capacitor of about 330 nF for
correct operation. The voltages available under various
signal conditions are given in the specification.
8. Sandcastle and field blanking input
The output signals are blanked if the amplitude of the input
pulse is between 2 and 6,5 V. The burst gate and clamping
circuits are activated if the input pulse exceeds a level of
7,5 V.
The higher part of the sandcastle pulse should start just
after the sync pulse to prevent clamping of video signal on
the sync pulse. The width should be about 4 µs for proper
A.C.C. operation.
3. Chrominance input
The chroma signal must be a.c.-coupled to the input.
Its amplitude must be between 55 mV and 1100 mV
peak-to-peak (25 mV to 500 mV peak-to-peak burst
signal). All figures for the chroma signals are based on a
colour bar signal with 75% saturation, that is the
burst-to-chroma ratio of the input signal is 1 : 2,25.
9. Video-data switching
4. Reference voltage A.C.C. detector
The insertion circuit is activated by means of this input by
an input pulse between 1 V and 2 V. In that condition, the
internal RGB signals are switched off and the inserted
signals are supplied to the output amplifiers. If only normal
operation is wanted this pin should be connected to the
negative supply. The switching times are very short
(< 20 ns) to avoid coloured edges of the inserted signals
on the screen.
This pin must be decoupled by a capacitor of about 330
nF. The voltage at this pin is 4,9 V.
5. Control voltage A.C.C.
The A.C.C. is obtained by synchronous detection of the
burst signal followed by a peak detector. A good noise
immunity is obtained in this way and an increase of the
colour for weak input signals is prevented. The
10. Luminance signal input
recommended capacitor value at this pin is 2,2 µF.
The input signal should have a peak-to-peak amplitude of
0,45 V (peak white to sync) to obtain a black-white output
signal to 5 V at nominal contrast. It must be a.c.-coupled to
the input by a capacitor of about 22 nF. The signal is
clamped at the input to an internal reference voltage.
A 1 kΩ luminance delay line can be applied because the
luminance input impedance is made very high.
Consequently the charging and discharging currents of the
coupling capacitor are very small and do not influence the
signal level at the input noticeably. Additionally the
coupling capacitor value may be small.
6. Saturation control
The saturation control range is in excess of 50 dB.
The control voltage range is 2 to 4 V. Saturation control is
a linear function of the control voltage.
When the colour killer is active, the saturation control
voltage is reduced to a low level if the resistance of the
external saturation control network is sufficiently high.
Then the chroma amplifier supplies no signal to the
demodulator. Colour switch-on can be delayed by proper
choice of the time constant for the saturation control
setting circuit.
September 1982
11
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
11. Brightness control
25, 26. Reference oscillator
The black level of the RGB outputs can be set by the
voltage on this pin (see Fig.5). The black level can be set
higher than 4 V however the available output signal
amplitude is reduced (see pin 7). Brightness control also
operates on the black level of the inserted signals.
The frequency of the oscillator is adjusted by the variable
capacitor C1. For frequency adjustment interconnect pin
21 and pin 22. The frequency can be measured by
connecting a suitable frequency counter to pin 25.
28. Output of the chroma amplifier
12, 14, 16. RGB outputs
Both burst and chroma signals are available at the output.
The burst-to-chroma ratio at the output is identical to that
at the input for nominal control settings. The burst signal is
not affected by the controls. The amplitude of the input
signal to the demodulator is kept constant by the A.C.C.
Therefore the output signal at pin 28 will depend on the
signal loss in the delay line.
The output circuits for red, green and blue are identical.
Output signals are 5,25 V (R, G and B) at nominal input
signals and control settings. The black levels of the three
outputs have the same value. The blanking level at the
outputs is 2,1 V. The peak white level is limited to 9,3 V.
When this level exceeded the output signal amplitude is
reduced via the contrast control (see pin 7).
13, 15, 17. Inputs for external RGB signals
The external signals must be a.c.-coupled to the inputs via
a coupling capacitor of about 100 nF. Source impedance
should not exceed 150 Ω. The input signal required for
a 5 V peak-to-peak output signal is 1 V peak-to-peak.
At the RGB outputs the black level of the inserted signal is
identical to that of normal RGB signals. When these inputs
are not used the coupling capacitors have to be connected
to the negative supply.
18, 19, 20. Black level clamp capacitors
The black level clamp capacitors for the three channels are
connected to these pins. The value of each capacitor
should be about 100 nF.
21, 22. Inputs (B-Y) and (R-Y) demodulators
The input signal is automatically fixed to the required level
by means of the burst phase detector and A.C.C.
generator which are connected to pin 21 and pin 22. As the
burst (applied differentially to those pins) is kept constant
by the A.C.C., the colour difference signals automatically
have the correct value.
23, 24. Burst phase detector outputs
At these pins the output of the burst phase detector is
filtered and controls the reference oscillator. An adequate
catching range is obtained with the time constants given in
the application circuit (see Fig.6).
September 1982
12
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
PACKAGE OUTLINE
handbook, full pagewidth
DIP28: plastic dual in-line package; 28 leads (600 mil)
SOT117-1
D
M
E
A
2
A
L
A
1
c
e
w M
Z
b
1
(e )
1
b
M
H
28
15
pin 1 index
E
1
14
0
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
(1)
A
max.
A
A
Z
(1)
(1)
1
2
UNIT
mm
b
b
c
D
E
e
e
L
M
M
w
1
1
E
H
min.
max.
max.
1.7
1.3
0.53
0.38
0.32
0.23
36.0
35.0
14.1
13.7
3.9
3.4
15.80
15.24
17.15
15.90
5.1
0.51
4.0
2.54
0.10
15.24
0.60
0.25
0.01
1.7
0.013
0.009
0.066
0.051
0.020
0.014
1.41
1.34
0.56
0.54
0.15
0.13
0.62
0.60
0.68
0.63
inches
0.20
0.020
0.16
0.067
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
EIAJ
92-11-17
95-01-14
SOT117-1
051G05
MO-015AH
September 1982
13
Philips Semiconductors
Product specification
PAL decoder
TDA3561A
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 (Tstg 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
Data sheet status
Objective specification
Preliminary specification
Product specification
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
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.
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.
September 1982
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