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TDA8725T

NXP
Part Number TDA8725T
Manufacturer NXP
Description Antenna signal processor
Published Apr 16, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET TDA8725T Antenna signal processor Product specification File under Integrated Circuits, ...
Datasheet PDF File TDA8725T PDF File

TDA8725T
TDA8725T

Overview
INTEGRATED CIRCUITS DATA SHEET TDA8725T Antenna signal processor Product specification File under Integrated Circuits, IC02 1995 Mar 21 Philips Semiconductors Philips Semiconductors Product specification Antenna signal processor FEATURES • 75 Ω antenna input stage • 75 Ω VCR RF input stage • 75 Ω VCR tuner output • 75 Ω TV tuner output.
GENERAL DESCRIPTION The TDA8725T has been designed to split and combine RF signals for Picture-In-Picture (PIP) and VCR applications.
QUICK REFERENCE DATA SYMBOL VP IP fi Gp PARAMETER supply voltage (pins 8 and 9) supply current (pins 8 and 9) input frequency power gain from antenna to VCR from antenna to TV from VCR F IP2 IP3 ssup noise figure antenna linearity 2nd order intercept point antenna linearity 3rd order intercept point signal suppression VCR input to antenna VCR output to TV output TV output to VCR output VSWR voltage standing wave ratio at the antenna input at the outputs Pi(max) maximum input power on antenna for 1 dB gain compression − − − 2.
5 1.
5 −10 0 to 1 GHz 1 to 3 GHz 0 to 300 MHz 300 to 860 MHz 0 to 300 MHz 300 to 860 MHz 32 25 35 22 35 22 37 30 40 27 40 27 at 40 MHz at 860 MHz at 40 MHz at 860 MHz 3.
5 4 − 6.
5 137 119 121 108 5.
0 5.
5 0 9.
0 140 124 124 111 CONDITIONS − 40 MIN.
4.
75 TYP.
5.
0 65 − TDA8725T For PIP applications, the antenna input signal is split and fed to the main TV tuner and the PIP tuner.
Good signal suppression between the two outputs enables good quality of the main picture when the PIP tuner is in use.
For VCR applications, the antenna input signal is split and then fed directly to the VCR tuner and the TV tuner after being combined with the VCR - RF signal.
Good signal suppression between the two outputs enables good quality pictures when the TV and VCR tuners are both operating.
Good signal suppression between the VCR input and the antenna input reduces the amount of unwanted signal on the antenna.
MAX.
5.
25 − 860 6.
5 7 − 10 − − − − − − − − − − 4 3 − V UNIT mA MHz dB dB dB dB dBµV dBµV...


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