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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 V
5−4
4,5 − 5,5 V
Supply current consumption I
5
− 9 − mA
Video input voltage V
8(p−p)
− 1 − V
Input impedance R
8
30 −−kΩ
Output voltage (50 MHz) V
6-7
− 13 − mV
Output voltage (600 MHz) V
6-7
− 10 − mV
Differential gain ∆G −−10 %
Differential phase ∆
φ
−−10 deg.
Intermodulation distortion d
int
−−80 − dB