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Fabricante

TDA4662

Baseband delay line

Philips Electronics 

Philips Semiconductors

Baseband delay line

Product specification

TDA4662

FEATURES

• Two comb filters, using the switched-capacitor

technique, for one line delay time (64 µs)

• For PAL and NTSC

• Adjustment-free application

• Handles negative or positive colour-difference input

signals

• Clamping of AC-coupled input signals [±(R−Y) and

±(B−Y)]

• VCO without external components

• 3 MHz internal clock signal derived from a 6 MHz CCO,

line-locked by the sandcastle pulse (64 µs line)

• Sample-and-hold circuits and low-pass filters to

suppress the 3 MHz clock signal

• Addition of delayed and non-delayed output signals

• Output buffer amplifiers

• Comb filtering functions for NTSC colour-difference

signals to suppress cross-colour.

GENERAL DESCRIPTION

The TDA4662 is an integrated baseband delay line circuit

with one line delay. It is suitable for PAL and NTSC

decoders with colour-difference signal outputs ±(R−Y) and

±(B−Y).

QUICK REFERENCE DATA

SYMBOL

VP1

VP2

IP(tot)

Vi(p-p)

Gv

PARAMETER

MIN.

analog supply voltage (pin 9)

4.5

digital supply voltage (pin 1)

4.5

total supply current

−

±(R−Y) input signal PAL/NTSC (peak-to-peak value; pin 16) −

±(B−Y) input signal PAL/NTSC (peak-to-peak value; pin 14) −

voltage gain VO/VI of colour-difference output signals

V11/V16 for PAL and NTSC

5.3

V12/V14 for PAL and NTSC

5.3

TYP.

5

5

5.5

525

665

5.8

5.8

MAX.

6

6

7.0

−

−

6.3

6.3

UNIT

V

V

mA

mV

mV

dB

dB

ORDERING INFORMATION

TYPE

NUMBER

TDA4662

TDA4662T

NAME

DIP16

SO16

PACKAGE

DESCRIPTION

plastic dual in-line package; 16 leads (300 mil)

plastic small outline package; 16 leads; body width 3.9 mm

VERSION

SOT38-4

SOT109-1

1996 Nov 14

2

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