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 V544,5 5,5 V
Supply current consumption I59mA
Video input voltage V8(pp) 1V
Input impedance R830 −−k
Output voltage (50 MHz) V6-7 13 mV
Output voltage (600 MHz) V6-7 10 mV
Differential gain G−−10 %
Differential phase φ−−10 deg.
Intermodulation distortion dint −−80 dB