PHILIPS TDA4650

INTEGRATED CIRCUITS
DATA SHEET
TDA4650
Multistandard colour decoder, with
negative colour difference output
signals
Preliminary specification
File under Integrated Circuits, IC02
March 1991
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with negative
colour difference output signals
FEATURES
Identifies and demodulates PAL,
SECAM, NTSC 3.58 and NTSC 4.43
chrominance signals with:
• Identification
– automatic standard identification
by sequential inquiry
– secure SECAM identification at
50 Hz only, with PAL priority
– four switched outputs for
chrominance filter selection and
display control
– external service switch for
oscillator adjustment
TDA4650
– NTSC phase shift (disabled for
PAL)
• Gain controlled chrominance
amplifier
– PLL-controlled reference
oscillator
• ACC demodulation controlled by
system scanning
– two reference oscillator crystals
on separate pins with automatic
switching
• Internal colour-difference signal
output filters to remove the residual
subcarrier
– quadrature demodulator with
subcarrier reference
GENERAL DESCRIPTION
• SECAM demodulation
– limiter-amplifier
– quadrature-demodulator with a
single external reference tuned
circuit
– alternate line blanking, H and V
blanking
• PAL / NTSC demodulation
– H (burst) and V blanking
– PAL switch (disabled for NTSC)
The TDA4650 is a monolitic
integrated multistandard colour
decoder for PAL, SECAM and NTSC
(3.58 and 4.43 MHz) with negative
colour difference output signals. The
colour-difference output signals are
fed to the TDA4660/TDA4661,
Switched capacitor delay line.
– de-emphasis
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Vp
supply voltage range (pin 13)
10.8
12.0
13.2
V
Ip
supply current
(pin 13)
−
60
−
mA
vi(p-p)
chrominance input voltage (pin 15)
(peak-to-peak value)
20
100
400
mV
Vo(p-p)
colour-difference output voltage (pin 1)
(peak-to-peak value)
PAL/NTSC
0.42
0.525
0.66
V
colour-difference output voltage (pin 3)
(peak-to-peak value)
PAL/NTSC
0.53
0.665
0.84
V
colour-difference output voltage (pin 1)
(peak-to-peak value)
SECAM
0.83
1.05
1.32
V
colour-difference output voltage (pin 3)
(peak-to-peak value)
SECAM
1.06
1.33
1.67
V
ORDERING INFORMATION
PACKAGE
EXTENDED
TYPE NUMBER
PINS
PIN POSITION
MATERIAL
CODE
TDA4650
28
DIL
plastic
SOT117(1)
TDA4650WP
28
PLCC
plastic
SOT261(2)
Note
1. SOT117-1; 1996 November 28.
2. SOT261-2; 1996 November 28.
March 1991
2
Philips Semiconductors
Preliminary specification
TDA4650
Fig.1 Block diagram.
Multistandard colour decoder, with
negative colour difference output signals
March 1991
3
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with
negative colour difference output signals
TDA4650
PINNING
SYMBOL
PIN
−(R-Y) output
CHRI
15
chrominance input
(R-Y) de-emphasis
CACC
16
automatic colour control
3
−(B-Y) output
HUE
17
hue control
−(B-Y)DE
4
(B-Y) de-emphasis
PLL
18
PLL time constant
−(B-Y)CL
5
(B-Y) clamping
OSC1
19
input for 7.15 MHz oscillator
−(R-Y)CL
6
(R-Y) clamping
CPLL
20
PLL DC reference
SECREF
7
SECAM reference tuned circuit
OSC2
21
input for 8.86 MHz oscillator
22
NTSC identification
SYMBOL
PIN
−(R-Y)o
1
−(R-Y)DE
2
−(B-Y)o
DESCRIPTION
DESCRIPTION
SECREF
8
SECAM reference tuned circuit
NIDENT
SECREF
9
SECAM reference tuned circuit
PIDENT
23
PAL/SECAM identification
SECREF
10
SECAM reference tuned circuit
SSC
24
super sandcastle pulse input
25
NTSC (4.43 MHz) identification
GND
11
ground
NO1
CD
12
DC for demodulators
NO2
26
NTSC (3.58 MHz) identification
VP
13
supply voltage
SECo
27
SECAM identification
CDC
14
DC feedback
PALo
28
PAL identification
PIN CONFIGURATIONS
Fig.2
Pin configuration for DIL
package
March 1991
Fig.3 Pin configuration for PLCC package.
4
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with
negative colour difference output signals
TDA4650
Fig.4 Internal circuits (continued in Fig.5)
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC 134)
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
VP
supply voltage (pin 13) −
13.2
V
VI
voltage range at pins 1, 3, 17 and 24 to 28
0
VP
V
Io
output current (pins 1 and 3)
−
−5
mA
Ii/o
input/output current (pins 25 to 28)
−
−5
µA
Tstg
storage temperature range
−25
+ 150
°C
Tamb
operating ambient temperature range
0
+ 70
°C
Rth j-a
from junction to ambient in free air:
SOT117
−
37
K/W
SOT261
−
70
K/W
total power dissipation (SOT117)
−
1.4
W
total power dissipation (SOT261)
−
1.1
W
Ptot
March 1991
5
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with
negative colour difference output signals
Fig.5 Internal circuits (continued from Fig.4)
March 1991
6
TDA4650
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with
negative colour difference output signals
TDA4650
CHARACTERISTICS
All voltages are measured to GND (pin 11); VP = 12 V; chrominance input signal V15(p-p) = 100 mV (with 75 % colour bar
signal); 4 µs burst-blanking pulse and vertical blanking superimposed on super sandcastle pulse; Tamb = 25 °C;
measured in test circuit of Fig.1; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VP
supply voltage range
10.8
12.0
13.2
V
IP
supply current
50
60
80
mA
Chrominance part
Vi(p-p)
input signal (pin 15)
(peak-to-peak value)
20
100
400
mV
Ri
input resistance (pin 15)
7
10
13
kΩ
Ci
input capacitance (pin 15)
−
4
5
pF
Demodulator part (PAL/NTSC)
V1(p-p)
colour difference −(R−Y) output
signal (peak-to-peak value)
at nominal phase of hue
control
0.42
0.525
0.66
V
V3(p-p)
colour difference −(B−Y) output
signal (peak-to-peak value)
at nominal phase of hue
control
0.53
0.665
0.84
V
V1/V3
ratio of colour difference signals
(R−Y)/(B−Y) for NTSC
at nominal phase of hue
control
0.75
0.79
0.83
V1/V1
ratio of PAL/NTSC signals
(R−Y)PAL/(R−Y)NTSC
at nominal phase of
hue control
−
−
1
m
signal linearity
V1(p-p) = 0.8 V − (R−Y)
0.8
−
−
V3(p-p) = 1.0 V − (B−Y)
0.8
−
−
DC output level
proportional to VP
6.3
6.8
7.3
V
H/2 ripple at CD outputs
without colour bars
−
−
10
mV
residual carrier at CD outputs
(peak-to-peak value)
4.43 MHz
−
−
10
mV
8.87 MHz
−
−
30
mV
−
−
200
Ω
V1,3
V1,3(p-p)
Z1,3
output impedance
dB
Demodulator part (SECAM); note 1
V1(p-p)
colour difference −(R−Y) output
signal (peak-to-peak value)
every second line blanked
0.83
1.05
1.32
V
V3(p-p)
colour difference −(B−Y) output
signal (peak-to-peak value)
every second line blanked
1.06
1.33
1.67
V
V1,3
DC output level
proportional to VP
6.3
6.8
7.3
V
H/2 ripple at CD outputs
without colour bars every
second line blanked
−
−
10
mV
residual carrier at CD outputs
(peak-to-peak value)
4.43 MHz
−
−
30
mV
8.87 MHz
−
−
30
mV
V1,3(p−p)
March 1991
7
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with
negative colour difference output signals
SYMBOL
PARAMETER
TDA4650
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Demodulator part (SECAM) (continued); note 1
∆V1,3/∆VP
∆V1/∆T
shift of blanking levels relative to
demodulated fo levels
∆V3/∆T
−
−
3
mV/V
−
0.16
−
mV/K
−
−0.25
−
mV/K
Hue control part
φ
V17
R17
phase shift of reference carrier
relative to phase at V17 = 3 V
V17 = 2 V
−30
−40
−
deg
phase shift of reference carrier
V17 = 3 V
−
0
±5
deg
phase shift of reference carrier
relative to phase at V17 = 3 V
V17 = 4 V
30
40
−
deg
−
3
−
V
internal bias voltage
switching voltage for oscillator
adjustment
burst OFF; colour ON
0
−
0.5
V
switching voltage for forced
colour ON
burst ON; colour ON
5.5
−
VP
V
3.8
5.0
6.2
kΩ
input resistance
Reference oscillator (PLL); note 2
R19,21
input resistance
−
350
−
Ω
C19,21
input resistance
−
−
10
pF
fc
catching range
at 4.43 MHz
± 400
−
−
Hz
at 3.57 MHz
± 330
−
−
Hz
control voltage OFF state
−
0.05
0.5
V
control voltage ON state;
during scanning
2.35
2.45
2.55
V
control voltage ON state;
internal forced
5.6
5.8
6.0
V
control voltage ON state;
external forced
9.0
-
VP
V
Identification part
switching voltages for chrominance filters and crystals:
at pin 28 for PAL
at pin 27 for SECAM
at pin 26 for NTSC (3.58 MHz)
at pin 25 for NTSC (4.43 MHz)
V28 to 25
switching voltages
I28 to 25
output currents
−
−
−3
mA
td
delay time for system hold
2
−
3
cycles
delay time for colour ON
2
−
3
cycles
delay time for colour OFF
0
−
1
cycles
−
4
−
cycles
ts
March 1991
scanning time for each standard
note 3
8
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with
negative colour difference output signals
SYMBOL
PARAMETER
TDA4650
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Super sandcastle pulse detector (note 4)
V24
input voltage pulse levels to
pulse ON
separate V and H blanking pulses pulse OFF
1.3
1.6
1.9
V
1.1
1.4
1.7
V
voltage pulse amplitude
2.0
2.5
3.0
V
input voltage pulse levels to
separate H blanking pulse
pulse ON
3.3
3.6
3.9
V
pulse OFF
3.1
3.4
3.7
V
4.1
4.5
4.9
V
voltage pulse amplitude
input voltage pulse levels to
separate burst gating pulse
pulse ON
6.2
6.6
7.0
V
pulse OFF
6.0
6.4
6.8
V
7.7
−
VP
V
voltage pulse amplitude
I24
input voltage
during line scan
−
−
1.0
V
input current
during line scan
−
−
−100
µA
Notes to the characteristics
1. For the SECAM standard, amplitude and H/2 ripple content of the CD signals (R−Y) and (B−Y) depend on the
characteristics of the external tuned circuit at pins 7 to 10. The resonant frequency of the external tuned circuit must
be adjusted such that the demodulated fo voltage level is zero in the −(B−Y) output channel at pin 3.
Now it is possible to adjust the quality of the external circuit such that the demodulated fo voltage level is zero in the
−(R−Y) output channel at pin 1. If necessary, the fo voltage level in the −(B−Y) output channel must be readjusted to
zero by the coil of the tuned circuit.
The external capacitors at the pins 2 and 4 (220 pF each) are matched to the internal resistances of the de-emphasis
network such that every alternate scanned line is blanked.
2. The fo frequencies of the 8.8 MHz crystal at pin 21, and the 7.2 MHz crystal at pin 19, can be adjusted when the
voltage at pin 17 is less than 0.5 V (burst OFF), thus providing double subcarrier frequencies of the chrominance
signal.
3. The inquiry sequence for the standard is: PAL − SECAM − NTSC (3.58 MHz) − NTSC (4.43 MHz).
PAL has priority with respect to SECAM, etc.
4. The super sandcastle pulse is compared with three internal threshold levels which are proportional to VP.
March 1991
9
Philips Semiconductors
Preliminary specification
TDA4650
Fig.6 Application diagram with the switched capacitor delay line TDA4660/1.
Multistandard colour decoder, with
negative colour difference output signals
March 1991
10
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with
negative colour difference output signals
TDA4650
PACKAGE OUTLINES
seating plane
handbook, full
pagewidthdual in-line package; 28 leads (600 mil)
DIP28:
plastic
SOT117-1
ME
D
A2
L
A
A1
c
e
Z
w M
b1
(e 1)
b
MH
15
28
pin 1 index
E
1
14
0
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
UNIT
A
max.
A1
min.
A2
max.
b
b1
c
D (1)
E (1)
e
e1
L
ME
MH
w
Z (1)
max.
mm
5.1
0.51
4.0
1.7
1.3
0.53
0.38
0.32
0.23
36.0
35.0
14.1
13.7
2.54
15.24
3.9
3.4
15.80
15.24
17.15
15.90
0.25
1.7
inches
0.20
0.020
0.16
0.066
0.051
0.020
0.014
0.013
0.009
1.41
1.34
0.56
0.54
0.10
0.60
0.15
0.13
0.62
0.60
0.68
0.63
0.01
0.067
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT117-1
051G05
MO-015AH
March 1991
EIAJ
EUROPEAN
PROJECTION
ISSUE DATE
92-11-17
95-01-14
11
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with
negative colour difference output signals
TDA4650
PLCC28: plastic leaded chip carrier; 28 leads
SOT261-2
eE
eE
y
X
A
19
25
18
26
bp
b1
ZE
w M
28
1
E
HE
pin 1 index
e
A
A4 A1
12
4
β
k1
(A 3)
k
5
11
Lp
v M A
ZD
e
detail X
D
B
HD
v M B
0
5
10 mm
scale
DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)
k1
max.
Lp
v
w
y
0.51
1.44
1.02
0.18
0.18
0.10
Z D(1) Z E (1)
max. max.
UNIT
A
A1
min.
A3
A4
max.
bp
b1
mm
4.57
4.19
0.51
0.25
3.05
0.53
0.33
0.81
0.66
0.180
0.020 0.01
0.165
0.12
0.430 0.430 0.495 0.495 0.048
0.057
0.021 0.032 0.456 0.456
0.020
0.05
0.007 0.007 0.004 0.085 0.085
0.390 0.390 0.485 0.485 0.042
0.040
0.013 0.026 0.450 0.450
inches
D (1)
E (1)
e
eD
eE
HD
HE
k
11.58 11.58
10.92 10.92 12.57 12.57 1.22
1.27
11.43 11.43
9.91 9.91 12.32 12.32 1.07
2.16
β
2.16
45 o
Note
1. Plastic or metal protrusions of 0.01 inches maximum per side are not included.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
92-11-17
95-02-25
SOT261-2
March 1991
EUROPEAN
PROJECTION
12
Philips Semiconductors
Preliminary specification
Multistandard colour decoder, with
negative colour difference output signals
TDA4650
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
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.
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.
March 1991
13