Philips TDA4650WP-V4, TDA4650-V4 Datasheet

DATA SH EET

Preliminary specification
File under Integrated Circuits, IC02

March 1991

INTEGRATED CIRCUITS

TDA4650

Multistandard colour decoder, with
negative colour difference output
signals

March 1991 2

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with negative
colour difference output signals

TDA4650

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

• 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

ORDERING INFORMATION

Note

1. SOT117-1; 1996 November 28.

2. SOT261-2; 1996 November 28.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

p

supply voltage range (pin 13) 10.8 12.0 13.2 V

I

p

supply current
(pin 13)

− 60 − mA

v

i(p-p)

chrominance input voltage (pin 15)
(peak-to-peak value)

20 100 400 mV

V

o(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

EXTENDED

TYPE NUMBER

PACKAGE

PINS PIN POSITION MATERIAL CODE

TDA4650 28 DIL plastic SOT117

(1)

TDA4650WP 28 PLCC plastic SOT261

(2)

March 1991 3

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with
negative colour difference output signals

TDA4650

Fig.1 Block diagram.

March 1991 4

Philips Semiconductors Preliminary specification

Multistandard colour decoder, with
negative colour difference output signals

TDA4650

PINNING

SYMBOL PIN DESCRIPTION

−(R-Y)

o

1 −(R-Y) output

−(R-Y)

DE

2 (R-Y) de-emphasis

−(B-Y)

o

3 −(B-Y) output

−(B-Y)

DE

4 (B-Y) de-emphasis

−(B-Y)

CL

5 (B-Y) clamping

−(R-Y)

CL

6 (R-Y) clamping

SEC

REF

7 SECAM reference tuned circuit

SEC

REF

8 SECAM reference tuned circuit

SEC

REF

9 SECAM reference tuned circuit

SEC

REF

10 SECAM reference tuned circuit
GND 11 ground
C

D

12 DC for demodulators
V

P

13 supply voltage
C

DC

14 DC feedback

CHR

I

15 chrominance input

C

ACC

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

PLL

20 PLL DC reference
OSC2 21 input for 8.86 MHz oscillator
N

IDENT

22 NTSC identification
P

IDENT

23 PAL/SECAM identification
SSC 24 super sandcastle pulse input
N

O1

25 NTSC (4.43 MHz) identification
N

O2

26 NTSC (3.58 MHz) identification
SEC

o

27 SECAM identification
PAL

o

28 PAL identification

SYMBOL PIN DESCRIPTION

PIN CONFIGURATIONS

Fig.2 Pin configuration for DIL

package

Fig.3 Pin configuration for PLCC package.