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TDA8540 데이터시트(PDF) 2 Page - NXP Semiconductors |
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2 / 20 page 1995 Feb 06 2 Philips Semiconductors Product specification 4 × 4 video switch matrix TDA8540 FEATURES • I2C-bus or non-I2C-bus mode (controlled by DC voltages) • S-VHS or CVBS processing • 3-state switches for all channels • Selectable gain for the video channels • sub-address facility • Slave receiver in the I2C mode • Auxiliary logic outputs for audio switching • System expansion possible up to 7 devices (28 sources) • Static short-circuit proof outputs • ESD protection. APPLICATIONS • Colour Television (CTV) receivers • Peritelevision sets • Satellite receivers. GENERAL DESCRIPTION The TDA8540 has been designed for switching between composite video signals, therefore the minimum of four input lines are provided as requested for switching between two S-VHS sources. Each of the four outputs can be set to a high impedance state, to enable parallel connection of several devices. QUICK REFERENCE DATA ORDERING INFORMATION SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VCC supply voltage 7.2 − 8.8 V ICC supply current − 20 30 mA ISO isolation ‘OFF’ state at f = 5 MHz 60 80 − dB B 3 dB bandwidth 12 −− MHz αct crosstalk attenuation between channels 60 70 − dB TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA8540 DIP20 plastic dual in-line package; 20 leads (300 mil) SOT146-1 TDA8540T SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 |
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