March 1986

2

Philips Semiconductors

Product specification

Video modulator circuit

TDA6800

TDA6800T

GENERAL DESCRIPTION

The TDA6800 is a modulator circuit for modulation of video signals on a VHF/UHF carrier. The circuit requires a 5 V

power supply and few external components for the negative modulation mode. For positive modulation an external clamp

circuit is required. This circuit can be used as a general purpose modulator without additional external components.

Features

• Balanced modulator

• Symmetrical oscillator

• Video clamp circuit for negative modulation

• Frequency range 50 to 800 MHz

QUICK REFERENCE DATA

PACKAGE OUTLINE

TDA6800 : 8-lead dual in-line; plastic (SOT97A); SOT 97-1; 1996 november 29.

TDA6800T: 8-lead mini-pack; plastic (SO8; SOT96A); SOT 96-1; 1996 november 29.

MIN.

TYP.

MAX.

Supply voltage range

4,5

−

5,5

V

Supply current consumption

−

9

−

mA

Video input voltage

−

1

−

V

Input impedance

30

−−

k

Ω

Output voltage (50 MHz)

−

13

−

mV

Output voltage (600 MHz)

−

10

−

mV

Differential gain

∆G

−−

10

%

Differential phase

−−

10

deg.

Intermodulation distortion

−−80

−

dB