TEA6415C Datasheet | STMicroelectronics

BUS-CONTROLLED VIDEO MATRIX SWITCH s s s s s s s s s 20MHz BANDWIDTH CASCADABLE WITH ANOTHER TEA6415C (INTERNAL ADDRESS CAN BE CHANGED BY PIN 7 VOLTAGE) 8 INPUTS (CVBS, RGB, MAC, CHROMA, ...) 6 OUTPUTS POSSIBILITY OF MAC OR CHROMA SIGNAL FOR EACH INPUT BY SWITCHING-OFF THE CLAMP WITH AN EXTERNAL RESISTOR BRIDGE BUS CONTROLLED 6.5d B GAIN BETWEEN ANY INPUT AND OUTPUT -55d B CROSSTALK AT 5MHz FULLY ESD PROTECTED DIP20 (Plastic Package) ORDER CODE : TEA6415C DESCRIPTION The main function of the TEA6415C is to switch 8 video input sources on the 6 outputs. Each output can be switched to only one of the inputs whereas but any same input may be connected to several outputs. All the switching possibilities are controlled through the I2C bus. PIN CONNECTIONS INPUT DATA INPUT CLOCK INPUT INPUT PROG INPUT VCC INPUT 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 INPUT GROUND OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT 6415C-01.EPS SO20 (Plastic Micropackage) ORDER CODE : TEA6415CD GROUND INPUT January 1996 1/10 BLOCK DIAGRAM P ERI TV1 P ERI TV2 LUMA PIP CHROMA POWER MAC DEC. CVBS (MAC/DEC) CVBS (P ERI P LUG1) CVBS (AM TUNER) MAC S IGNAL (AMTUNER) CVBS (P ERI P LUG2) CVBS (FM TUNER) MAC S IGNAL (FM TUNER) SYNCHRO (TTX/BTX) BUS DECODER T E A 6 4 1 5 C 9 VCC 19 GND 6415C-02.EPS 2 DATA 7 P ROG 4 CLOCK GENERAL DESCRIPTION The main functionof the IC is to switch 8 video input sources on 6 outputs. Each output can be switched on only one of each input. On each input an alignment of the lowest level of the signal is made (bottom of synch. top for CVBS or black level for RGB signals). Each nominal gain between any input and output is 6.5d B. For D2MAC or Chroma signal the alignment is switched off by forcing, with an external resistor bridge, 5 VDC on the input. Each input can be used as a normal input or as a MAC or Chroma input (with external resistor bridge). All the switching...