Datasheet TDA4650 Datasheet

INTEGRATED CIRCUITS

DATA SH EET

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

• PAL / NTSC demodulation
– H (burst) and V blanking
– PAL switch (disabled for NTSC)

– NTSC phase shift (disabled for

PAL)

– PLL-controlled reference

oscillator

– two reference oscillator crystals

on separate pins with automatic
switching

– quadrature demodulator with

subcarrier reference

• SECAM demodulation
– limiter-amplifier
– quadrature-demodulator with a

single external reference tuned
circuit

– alternate line blanking, H and V

blanking

– de-emphasis

TDA4650

• Gain controlled chrominance
amplifier

• ACC demodulation controlled by
system scanning

• Internal colour-difference signal
output filters to remove the residual
subcarrier

GENERAL DESCRIPTION

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.

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

p

I

p

v

i(p-p)

V

o(p-p)

ORDERING INFORMATION

TYPE NUMBER

TDA4650 28 DIL plastic SOT117
TDA4650WP 28 PLCC plastic SOT261

supply voltage range (pin 13) 10.8 12.0 13.2 V
supply current

(pin 13)
chrominance input voltage (pin 15)

(peak-to-peak value)
colour-difference output voltage (pin 1)

(peak-to-peak value)
colour-difference output voltage (pin 3)

(peak-to-peak value)
colour-difference output voltage (pin 1)

(peak-to-peak value)
colour-difference output voltage (pin 3)

(peak-to-peak value)

EXTENDED

PINS PIN POSITION MATERIAL CODE

PAL/NTSC 0.42 0.525 0.66 V

PAL/NTSC 0.53 0.665 0.84 V

SECAM 0.83 1.05 1.32 V

SECAM 1.06 1.33 1.67 V

PACKAGE

− 60 − mA

20 100 400 mV

(1)

(2)

Note

1. SOT117-1; 1996 November 28.

2. SOT261-2; 1996 November 28.

March 1991 2

March 1991 3

negative colour difference output signals

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with

Fig.1 Block diagram.

TDA4650

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with
negative colour difference output signals

PINNING

SYMBOL PIN DESCRIPTION

−(R-Y)

−(R-Y)

−(B-Y)

−(B-Y)

−(B-Y)

−(R-Y)

SEC

REF

SEC

REF

SEC

REF

SEC

REF

GND 11 ground
C

D

V

P

C

DC

1 −(R-Y) output

o

2 (R-Y) de-emphasis

DE

3 −(B-Y) output

o

4 (B-Y) de-emphasis

DE

5 (B-Y) clamping

CL

6 (R-Y) clamping

CL

7 SECAM reference tuned circuit
8 SECAM reference tuned circuit
9 SECAM reference tuned circuit
10 SECAM reference tuned circuit

12 DC for demodulators
13 supply voltage
14 DC feedback

TDA4650

SYMBOL PIN DESCRIPTION

CHR
C

ACC

HUE 17 hue control
PLL 18 PLL time constant
OSC1 19 input for 7.15 MHz oscillator
C

PLL

OSC2 21 input for 8.86 MHz oscillator
N

IDENT

P

IDENT

SSC 24 super sandcastle pulse input
N

O1

N

O2

SEC

o

PAL

o

15 chrominance input

I

16 automatic colour control

20 PLL DC reference

22 NTSC identification
23 PAL/SECAM identification

25 NTSC (4.43 MHz) identification
26 NTSC (3.58 MHz) identification
27 SECAM identification
28 PAL identification

PIN CONFIGURATIONS

Fig.2 Pin configuration for DIL

package

Fig.3 Pin configuration for PLCC package.

March 1991 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

V

P

V

I

I

o

I

i/o

T

stg

T

amb

R

th j-a

supply voltage (pin 13) − 13.2 V
voltage range at pins 1, 3, 17 and 24 to 28 0 V

P

output current (pins 1 and 3) −−5mA
input/output current (pins 25 to 28) −−5µA
storage temperature range −25 + 150 °C
operating ambient temperature range 0 + 70 °C
from junction to ambient in free air:

SOT117 − 37 K/W
SOT261 − 70 K/W

P

tot

total power dissipation (SOT117) − 1.4 W
total power dissipation (SOT261) − 1.1 W

V

March 1991 5

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with
negative colour difference output signals

TDA4650

Fig.5 Internal circuits (continued from Fig.4)

March 1991 6

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with

TDA4650

negative colour difference output signals

CHARACTERISTICS

All voltages are measured to GND (pin 1 1); V

= 12 V; chrominance input signal V

P

signal); 4 µs burst-blanking pulse and vertical blanking superimposed on super sandcastle pulse; T
measured in test circuit of Fig.1; unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

P

I

P

supply voltage range 10.8 12.0 13.2 V
supply current 50 60 80 mA

Chrominance part

V

i(p-p)

input signal (pin 15)

20 100 400 mV

(peak-to-peak value)

R

i

C

i

input resistance (pin 15) 7 10 13 kΩ
input capacitance (pin 15) − 45pF

Demodulator part (PAL/NTSC)

V

1(p-p)

V

3(p-p)

V

1/V3

V

1/V1

m signal linearity V

V

1,3

colour difference −(R−Y) output
signal (peak-to-peak value)

colour difference −(B−Y) output
signal (peak-to-peak value)

ratio of colour difference signals
(R−Y)/(B−Y) for NTSC

ratio of PAL/NTSC signals
(R−Y)

PAL

/(R−Y)

NTSC

at nominal phase of hue
control

at nominal phase of hue
control

at nominal phase of hue
control

at nominal phase of
hue control

= 0.8 V − (R−Y) 0.8 −−

1(p-p)

= 1.0 V − (B−Y) 0.8 −−

V

3(p-p)

DC output level proportional to V

0.42 0.525 0.66 V

0.53 0.665 0.84 V

0.75 0.79 0.83

−−1dB

P

6.3 6.8 7.3 V

H/2 ripple at CD outputs without colour bars −−10 mV

V

1,3(p-p)

Z

1,3

residual carrier at CD outputs
(peak-to-peak value)

4.43 MHz −−10 mV

8.87 MHz −−30 mV

output impedance −−200 Ω
Demodulator part (SECAM); note 1
V

1(p-p)

colour difference −(R−Y) output

every second line blanked 0.83 1.05 1.32 V

signal (peak-to-peak value)
V

3(p-p)

colour difference −(B−Y) output

every second line blanked 1.06 1.33 1.67 V

signal (peak-to-peak value)
V

1,3

DC output level proportional to V

P

H/2 ripple at CD outputs without colour bars every

6.3 6.8 7.3 V

−−10 mV

second line blanked

V

1,3(p−p)

residual carrier at CD outputs

(peak-to-peak value)

4.43 MHz −−30 mV

8.87 MHz −−30 mV

= 100 mV (with 75 % colour bar

15(p-p)

=25°C;

amb

March 1991 7

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with

TDA4650

negative colour difference output signals

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Demodulator part (SECAM) (continued); note 1

/∆V

∆V

1,3

∆V

/∆T − 0.16 − mV/K

1

∆V

/∆T −−0.25 − mV/K

3

Hue control part

φ phase shift of reference carrier

V

17

R

17

Reference oscillator (PLL); note 2
R

19,21

C

19,21

f

c

shift of blanking levels relative to

P

−−3 mV/V

demodulated fo levels

V17=2V −30 −40 − deg

relative to phase at V17=3V

phase shift of reference carrier V

phase shift of reference carrier

relative to phase at V

17

=3V

=3V − 0 ±5 deg

17

V17= 4 V 30 40 − deg

internal bias voltage − 3 − V

switching voltage for oscillator

burst OFF; colour ON 0 − 0.5 V

adjustment

switching voltage for forced

burst ON; colour ON 5.5 − V

P

colour ON

input resistance 3.8 5.0 6.2 kΩ

input resistance − 350 −Ω

input resistance −−10 pF

catching range at 4.43 MHz ± 400 −−Hz

at 3.57 MHz ± 330 −−Hz

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)

V

28 to 25

switching voltages control voltage OFF state − 0.05 0.5 V

control voltage ON state;
during scanning

control voltage ON state;
internal forced

control voltage ON state;
external forced

I

28 to 25

t

d

output currents −−−3mA

delay time for system hold 2 − 3 cycles

delay time for colour ON 2 − 3 cycles

delay time for colour OFF 0 − 1 cycles
t

s

scanning time for each standard note 3 − 4 − cycles

2.35 2.45 2.55 V

5.6 5.8 6.0 V

9.0 - V

P

V

March 1991 8

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with

TDA4650

negative colour difference output signals

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Super sandcastle pulse detector (note 4)

V

24

I

24

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.

input voltage pulse levels to
separate V and H blanking pulses

voltage pulse amplitude 2.0 2.5 3.0 V
input voltage pulse levels to

separate H blanking pulse
voltage pulse amplitude 4.1 4.5 4.9 V

input voltage pulse levels to
separate burst gating pulse

voltage pulse amplitude 7.7 − V
input voltage during line scan −−1.0 V
input current during line scan −−−100 µA

pulse ON 1.3 1.6 1.9 V
pulse OFF 1.1 1.4 1.7 V

pulse ON 3.3 3.6 3.9 V
pulse OFF 3.1 3.4 3.7 V

pulse ON 6.2 6.6 7.0 V
pulse OFF 6.0 6.4 6.8 V

P

V

March 1991 9

March 1991 10

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with

negative colour difference output signals

Fig.6 Application diagram with the switched capacitor delay line TDA4660/1.

TDA4650

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with
negative colour difference output signals

PACKAGE OUTLINES

handbook, full pagewidth

DIP28: plastic dual in-line package; 28 leads (600 mil)

D

seating plane

L

Z

28

e

b

TDA4650

SOT117-1

M

E

A

2

A

A

1

w M

b

1

15

c

(e )

1

M

H

pin 1 index

1

0 5 10 mm

scale

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

1 2

min.

max.

b

1.7

1.3

0.066

0.051

b

0.53

0.38

0.020

0.014

cD E weM

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

15.80

15.24

0.62

0.60

H

E

17.15

15.90

0.68

0.63

0.252.54 15.24

0.010.10 0.60

e

1

0.15

0.13

Z

max.

1.75.1 0.51 4.0

0.0670.20 0.020 0.16

OUTLINE
VERSION

SOT117-1

IEC JEDEC EIAJ

051G05 MO-015AH

REFERENCES

March 1991 11

EUROPEAN

PROJECTION

ISSUE DATE

92-11-17
95-01-14

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with
negative colour difference output signals

PLCC28: plastic leaded chip carrier; 28 leads

e

y

25

26

28

1

pin 1 index

4

β

k

511

E

X

19

Z

E

18

e

12

k

1

v M

e

D

H

D

Z

D

B

v M

TDA4650

SOT261-2

e

E

A

H

E

E

A

A

1

A

4

A

B

w M

detail X

b

p

b

1

(A )

3

L

p

0 5 10 mm

scale

DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)

UNIT A

mm

0.180

inches

0.165

A

1

min. max. max. max. max.

4.57

0.51

4.19

0.020

A

0.25

0.01

A

4

3

3.05

0.12

b

0.53

0.33

0.021

0.013

b

p

1

0.81

0.66

0.032

0.026

(1)

D

11.58

11.43

0.456

0.450

(1)

E

eH

11.58

1.27

11.43

0.456

0.05

0.450

e

D

10.92

9.91

0.430

0.390

e

10.92

9.91

0.430

0.390

E

12.57

12.32

0.495

0.485

Note

1. Plastic or metal protrusions of 0.01 inches maximum per side are not included.

OUTLINE
VERSION

IEC JEDEC EIAJ

REFERENCES

SOT261-2

March 1991 12

H

E

D

12.57

12.32

0.495

0.485

k

1.22

1.07

0.048

0.042

k

0.51

0.020

1

0.057

0.040

L

p

1.44

1.02

EUROPEAN

PROJECTION

(1) (1)

Z

Z

E

D

ywv β

0.18 0.100.18

0.007 0.0040.007

2.16

0.085

2.16

0.085

o

45

ISSUE DATE

92-11-17
95-02-25

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with

TDA4650

negative colour difference output signals

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

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