Philips TDA6800, TDA6800T User Manual

INTEGRATED CIRCUITS

DATA SH EET

TDA6800
TDA6800T

Video modulator circuit

Product specification
File under Integrated Circuits, IC02

March 1986

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

MIN. TYP. MAX.

Supply voltage range V
Supply current consumption I
Video input voltage V
Input impedance R
Output voltage (50 MHz) V
Output voltage (600 MHz) V

5−4

5

8(p−p)
8
6-7
6-7

Differential gain ∆G −−10 %
Differential phase ∆
Intermodulation distortion d

φ

int

4,5 − 5,5 V

− 9 − mA

− 1 − V

30 −−kΩ

− 13 − mV

− 10 − mV

−−10 deg.

−−80 − dB

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.

March 1986 2

Philips Semiconductors Product specification

Video modulator circuit

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)

Supply voltage V
Input voltage V
Output voltage V
Storage temperature T
Junction temperature T
Operating ambient temperature range T

THERMAL RESISTANCE

From junction to ambient in free air

TDA6800T R
TDA6800 R

5−4
8−4

6, 7−4
stg
j
amb

TDA6800

TDA6800T

max. 7 V
max. 4 V
max. 9 V
max. 125 °C
max. 125 °C

−25 to + 85 °C

th j−a
th j−a

260 K/W
120 K/W

Fig.1 Block diagram TDA6800 and TDA6800T.

March 1986 3