NXP Semiconductors TDA8540
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. 1995 Feb 06 4 Philips Semiconductors Product specification 4 × 4 video switch matrix FUNCTIONAL DESCRIPTION The TDA8540 is controlled via a bidirectional I2C-bus.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. QUICK REFERENCE DATA SYMBOL VCC ICC ISO B αct PARAMETER supply voltage supply current isolation ‘OFF’ state 3 dB bandwidth crosstalk attenuation between channels at f = 5 MHz CONDITIONS − 60 12 60 MIN. 7.2 − 20 80 − 70 TYP.
GENERAL DESCRIPTION
TDA8540 MAX. 8.8 30 − − − V UNIT mA dB MHz dB ORDERING INFORMATION TYPE NUMBER TDA8540 TDA8540T PACKAGE NAME DIP20 SO20DESCRIPTION
plastic dual in-line package; 20 leads (300 mil) plastic small outline package; 20 leads; body width 7.5 mm VERSION SOT146-1 SOT163-1 1995 Feb 06...