TDA3567 [NXP]
NTSC decoder; NTSC解码器
| 型号： | TDA3567 |
| 厂家： | 
NXP |
| 描述： | NTSC decoder |
| 文件： | 总15页 (文件大小：107K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
DATA SHEET
TDA3567
NTSC decoder
June 1986
Product specification
File under Integrated Circuits, IC02
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
GENERAL DESCRIPTION
The TDA3567 is a monolithic integrated decoder for the NTSC colour television standards. It combines all functions
required for the demodulation of NTSC signals. Further more 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.
QUICK REFERENCE DATA
PARAMETER
Supply voltage
CONDITIONS
pin 1
SYMBOL
VP = V1-17
MIN.
TYP.
12
MAX.
13,2
UNIT
9
V
Supply current
pin 1
IP = I1
−
65
−
mA
pin 8
Luminance input signal
Input voltage
(peak-to-peak value)
Contrast control range
V8-17(p-p)
−
−
0,45
20
−
−
V
dB
pin 3
Chrominance amplifier
Input voltage
(peak-to-peak value)
Saturation control range
V3-17(p-p)
−
550
−
−
mV
dB
50
−
RGB matrix and amplifiers
Output voltage at nominal
luminance input signal
and nominal contrast
(peak-to-peak value)
V10,11,12-17(p-p)
4,0
5,0
6,0
V
pin 7
Sandcastle input
Blanking input voltage
Burst gating and clamping
input voltage
V7-17
1,0
6,5
1,5
7,0
2,0
7,5
V
V
V7-17(p-p)
PACKAGE OUTLINE
18-lead DIL; plastic, with internal heatspreader (SOT102-1); SOT102-1; 1996 November 25.
June 1986
2
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
June 1986
3
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
FUNCTIONAL DESCRIPTION
Luminance amplifier
The luminance amplifier is voltage driven and requires an input signal of 450 mV peak-to-peak (1) The luminance delay
line must be connected between the i.f. amplifier and the decoder. The input signal must be a.c. coupled to the input pin 8.
The black level clamp circuit of the RGB amplifiers uses the coupling capacitor as a storage capacitor. After clamping
the signal is fed to a peaking stage. The RC network connected to pin 13 is used to define the amount of overshoot.
The peaking stage is followed by a contrast control stage. The control voltage has to be supplied to pin 6. The control
voltage range is nominally −17 to + 3 dB. The linear curve of the contrast control voltage is shown in Fig.2.
Chrominance amplifier
The chrominance amplifier has an asymmetrical input. The input signal at pin 3 must be a.c. coupled, and must have an
amplitude of 550 mV peak-to-peak. The gain control stage has a control range in excess of 30 dB, the maximum input
signal should not exceed 1,1 V peak-to-peak, otherwise clipping of the input signal will occur. From the gain control stage
the chrominance signal is fed to the saturation and contrast control stages. Chrominance and luminance control stages
are directly coupled to obtain good tracking. The saturation is linearly controlled via pin 5. The control voltage range is
2 V to 4 V. The impedance is high and the saturation control range is in excess of 50 dB. The burst signal is not affected
by contrast or saturation control. After the amplification and control stages the chrominance signal is internally fed to the
(R-Y) and (B-Y) demodulators, burst phase and a.c.c. detectors.
Oscillator and a.c.c. circuit
The 3,58 MHz reference oscillator operates at the subcarrier frequency. The crystal must be connected between pin 16
and ground. The oscillator does not require adjustment due to the small spreads of the IC. The free running frequency
of the oscillator can be checked by connecting the saturation control (pin 5) to the positive supply line. Then the loop is
opened, so that the frequency can be measured. The oscillator has an internal gain limiting stage which controls the gain
to unity, so that internal signals are sinusoidal. This prevents the generation of higher harmonics of the subcarrier signals.
The burst signal is compared to a 0° reference signal by the burst amplitude detector and is then amplified and fed to a
peak detector for a.c.c. and to a sample and hold circuit which drives the colour killer circuit. The reference signal for the
burst phase detector is provided by the 90° phase shifted signal. An RC network is used to obtain the required catching
range and noise immunity for the output voltage of the burst phase detector.
The hue control is obtained by mixing oscillator signals with a phase of 0° and 90° before they are fed to the (R-Y) and
(B-Y) demodulators. The 90° phase shifted signal is provided by a miller integrator (biased by pin 18). As the hue control
is independent of the PLL, the control will react without time delay on the control voltage changes.
Demodulator circuits
The demodulators are driven by the amplified and controlled chrominance signals, the reference signals are obtained
from the hue control circuit. In nominal hue control position the phase angle of (R-Y) reference signal is 0°, the phase
angle of the (B-Y) reference signal is 90°.
For flesh tone corrections the demodulated (R-Y) signal is matrixed with the demodulated (B-Y) signal according to the
following equations:
(R – Y) matrixed = 1, 61 (R – Y) IN – 0, 42 (B – Y) IN
(G – Y) matrixed = 0, 43 (R – Y) IN – 0, 11 (B – Y) IN
(B – Y) matrixed = (B – Y) IN
(1) Signal with negative going sync; amplitude includes sync pulse amplitude.
June 1986
4
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
In these equations (R-Y)IN and (B-Y)IN indicate the colour difference signal amplitudes, when the chrominance signal is
demodulated with a phase difference between the R-Y and B-Y demodulator of 90° and a gain ratio B-Y/R-Y = 1,78.
RGB matrix circuit and amplifiers
The three matrix and amplifier circuits are identical. The luminance signal and the colour difference signals are added in
the matrix circuit to obtain the colour signal.
Output signals are 5 V (peak-to-peak) (black-white) for the following nominal input signals and control settings.
• Luminance 450 mV (peak-to-peak)
• Chrominance 550 mV (peak-to-peak) (burst-to-chrominance ratio of the input 1 : 2.2)
• Contrast −3 dB (maximum)
• Saturation −10 dB (maximum)
The maximum available output voltage is approximately 7 V (peak-to-peak). The black level of the red channel is
compared with a variable external reference level (pin 9), which provides the brightness control. The control loop is
closed via the luminance input.
The luminance input is varied to control the black level control, therefore the green and blue outputs will follow any
variation of the red output. The output of the black control can be varied between 2 V to 4 V. The corresponding
brightness control voltage is shown in Fig.4.
If the output signal surpasses the level of 9 V the peak-white limiter circuit becomes active and reduces the output signal
via the contrast control.
Blanking of RGB signals
A slicing level of about 1,5 V is used for this blanking function, so that the wide part of the sandcastle pulse is separated
from the rest of the pulse. During blanking a level of + 2 V is available at the output.
June 1986
5
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage (pin 1)
VP = V1-17
max.
max.
13,2
1,7
V
Total power dissipation
Ptot
W
Storage temperature range
Operating ambient temperature range
Tstg
Tamb
−25 to + 150 ° C
−25 to + 65 ° C
THERMAL RESISTANCE
From junction to ambient (in free air)
Rth j-a
=
50
K/W
CHARACTERISTICS
VP = V1-17 =12 V; Tamb = 25 °C; unless otherwise specified
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply
Supply voltage
VP = V1-17
9
−
−
12
13,2
−
V
Supply current
IP = I1
Ptot
65
mA
W
Total power dissipation
0,78
−
Luminance input signal
Input voltage
note 1
(peak-to-peak value)
Input voltage level before
clipping occurs in the
input stage
pin 8
V8-17(p-p)
−
450
−
mV
V8-17
I8
−
−
−
1
V
Input current
0,15
−
1,0
+3
µA
dB
Contrast control range
Input current contrast
control
see Fig.2
−17
for V6-17 < 6 V
I7
−
0,5
15
µA
Input current when the
peak-white limiter
is active
V6-17 = 2,5 V
I7
−
5,5
2,0
−
mA
Input resistance
V6-17 > 6 V
R7-17
1,4
2,6
kΩ
Peaking of luminance signal
Output impedance
pin 13
|Z13-17
|
−
200
3
−
−
Ω
Ratio of internal/external
current when pin 13 is
short-circuited
−
June 1986
6
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Chrominance amplifier
Input signal amplitude
(peak-to-peak value)
Input signal amplitude
before clipping occurs
in the input stage
note 2
pin 3
V3-17(p-p)
−
−
550
−
mV
V
(peak-to-peak value)
Minimum burst signal
amplitude within the
a.c.c. control range
(peak-to-peak)
V3-17(p-p)
−
1,1
35
30
−
−
−
−
mV
dB
A.C.C. control range
Change of the burst signal
at the output for the
complete control range
Input impedance
∆V
−
−
8
4
−
+1
10
6
dB
kΩ
pF
dB
pin 3
|Z3-17
|
|
6
Input capacitance
pin 3
C3-17
−
Saturation control range
Input current saturation
control
see Fig.3
50
−
for V5-17 > 6 V
V5-17 = 6 V
to 10 V
I5
−
1
20
µA
kΩ
Input impedance
|Z5-17
1,4
2,0
2,6
Input impedance when the
colour killer is active
|Z5-17
|
|
1,4
0,7
2,0
1,0
2,6
1,3
kΩ
kΩ
Input impedance
for V5-17 > 10 V
|Z5-17
Tracking between luminance
and chrominance contrast
for 10 dB of
control
−
−
1
2
dB
dB
Cross coupling between
luminance and
chrominance amplifier
note 4
−50
−46
June 1986
7
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
PARAMETER
Reference part
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Phase locked loop
Catching range
∆ f
± 400
± 500
−
Hz
Phase shift for 400 Hz
deviation of the carrier
frequency
∆
−
−
5
deg
Oscillator
Temperature coefficient of
oscillator frequency
Frequency deviation
Input resistance
TCosc
∆ fosc9
R16-17
C22-17
−
1,5
150
360
−
2,5
250
460
10
Hz/K
Hz
Ω
∆ VP = ± 10%
pin 16
−
260
−
Input capacitance
pin 16
pF
A.C.C. generation
Voltage at pin 4 nominal
input signal
V4-17
−
4,0
−
V
Voltage at pin 4 without
burst input
V4-17
V4-17
V4-17
−
−
−
1,9
2,5
2,8
−
−
−
V
V
V
Colour-off voltage
Colour-on voltage
Change in burst amplitude
with temperature
−
0,1
−
%/K
Change in burst amplitude
with 10% supply
voltage change
−
−
0
−
−
%/V
V
Voltage at pin 2 at
nominal input signal
V2-17
5,0
Hue control
Control voltage range
Input current
see Fig.5
0,5
for V15-17 < 5 V
for V15-17 > 5 V
I14
−
20
µA
kΩ
Input impedance
|Z14-17
|
1,5
2,5
3,5
June 1986
8
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Demodulation part
Ratio of demodulation
signals (measured at the
various outputs)
note 7
(R-Y)/(B-Y); no (R-Y) signal
−
−
−0,42
−
−
V10 – 17
------------------
V12 – 17
(R-Y)/(B-Y); colour bar signal
1,4
V 10 – 17
------------------
V12 – 17
(G-Y)/(R-Y); no (B-Y) signal
(G-Y)/(B-Y); no (R-Y) signal
−
−
−0,25
−0,11
−
−
V 11 – 17
------------------
V12 – 17
V 11 – 17
------------------
V12 – 17
Frequency response
0 to 0,7 MHz
−
−
−3
dB
V
RGB matrix and amplifier
Output signal amplitude
at nominal
V10,11,12-17(p-p)
4,0
5,0
6,0
luminance input
signal and nominal
contrast (peak-to-
peak value)
note 3
black-white
Output signal amplitude of the at nominal
V12-17(p-p)
−
3,8
−
V
“blue” channel
contrast and
saturation control
setting and no
luminance signal
to the input (B-Y)
signal (peak-to-
peak value)
Maximum peak-white level
Maximum output current
Difference in the black
note 6
V10,11,12-7
I10,11,12-17
9,0
9,3
9,6
10
V
−
−
mA
level between the
three channels
−
−
−
600
40
mV
mV
Black level shift with
vision content
10
Brightness control voltage
range
see Fig.4
June 1986
9
Philips Semiconductors
NTSC decoder
PARAMETER
Product specification
TDA3567
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Brightness control input
current
I9
−
−
−
−
−50
1,0
µA
Black level variation with
temperature
V/T
∆V
0,15
75
mV/K
mV
Black level variation with
contrast control
200
Relative spread between the
three output signals
−
−
−
10
20
%
Relative variation in black
level between the
three channels
during variations
of contrast
(10 dB), brightness
(± 1 V), and
∆V
0
mV
supply voltage
(± 10%)
Differential drift of black
level over a temperature
range of 40 °C
∆V
−
0
20
mV
V
Blanking level at the RGB
outputs
Vb1
1,95
1,0
2,15
1,05
2,35
1,1
Tracking of output black levels
with supply voltage
∆Vb1 V p
×
------------ ---------
Vb1 ∆ V p
Signal-to-noise ratio of
output signals
note 5
S/N
62
−
−
dB
Residual 3,58 MHz in RGB
outputs (peak-to-peak
value)
VR(p-p)
−
−
50
50
75
75
mV
mV
Residual 7,1 MHz and higher
harmonics in the RGB
outputs (peak-to-peak
value)
VR(p-p)
RGB output impedance
|Z10,11,12-17
|
−
−
−
−
50
Frequency response of total
luminance and RGB
amplifier circuits
0 to 5 MHz
−3
dB
June 1986
10
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Sandcastle input
Level at which the RGB
blanking is activated
V7-17
1,0
1,5
2,0
7,5
V
V
Level at which burst gate
clamping pulses are
separated
V7-17
6,5
7,0
Delay between black level
clamping and burst
gating pulse
td
300
375
450
ns
Input currents
V
7-17 = 0 to 1 V
I7
I7
−
−
−
−
−1
−40
2
mA
µA
V7-17 = 1 to 8,5 V
−20
−
V7-17 = 8,5 to 12 V I7
mA
Notes to the characteristics
1. Signal with negative going sync; amplitude includes sync pulse amplitude.
2. Indicated is a signal for colour bar with 75% saturation, so the chrominance to burst ratio is 2,2 : 1.
3. Nominal contrast is specified as maximum contrast −3 dB and nominal saturation as maximum saturation −10 dB.
4. 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.
5. The signal-to-noise ratio is specified as peak-to-peak signal with respect to RMS noise.
6. When this level is exceeded the amplifier of the output signal is reduced via a discharge of the capacitor on pin 7
(contrast control). Discharge current is 5,5 mA.
7. These matrixed values are found by measuring the ratio of the various output signals. The values are derived from
the matrix equations given in the section ‘FUNCTIONAL DESCRIPTION’.
June 1986
11
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
Fig.2 Contrast control voltage range.
Fig.3 Saturation control voltage range.
Fig.4 Brightness control voltage range.
Fig.5 Hue control voltage range.
June 1986
12
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
APPLICATION INFORMATION
Fig.6 Application diagram.
June 1986
13
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
PACKAGE OUTLINES
DIP18: plastic dual in-line package; 18 leads (300 mil)
SOT102-1
D
M
E
A
2
A
A
1
L
c
e
w M
Z
b
1
(e )
1
b
b
2
18
10
M
H
pin 1 index
E
1
9
0
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
(1)
Z
A
A
A
2
(1)
(1)
1
w
UNIT
mm
b
b
b
c
D
E
e
e
L
M
M
H
1
2
1
E
max.
min.
max.
max.
1.40
1.14
0.53
0.38
1.40
1.14
0.32
0.23
21.8
21.4
6.48
6.20
3.9
3.4
8.25
7.80
9.5
8.3
4.7
0.51
3.7
2.54
0.10
7.62
0.30
0.254
0.01
0.85
0.055 0.021 0.055 0.013
0.044 0.015 0.044 0.009
0.86
0.84
0.26
0.24
0.15
0.13
0.32
0.31
0.37
0.33
inches
0.19
0.020
0.15
0.033
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
93-10-14
95-01-23
SOT102-1
June 1986
14
Philips Semiconductors
Product specification
NTSC decoder
TDA3567
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.
June 1986
15
相关型号：
©2020 ICPDF网 联系我们和版权申明