STV5348

STV5348 MONOCHIP TELETEXT AND VPS DECODER WITH 8 INTEGRATED PAGES FEATURES SUMMARY ■ COMPLETE TELETEXT AND VPS DECODER INCLUDING AN 8 PAGE MEMORY ON A SINGLE CHIP Figure 1. Package ■ UPWARD SOFTWARE COMPATIBLE WITH PREVIOUS ST’s MULTICHIP SOLUTIONS (SAA5231, SDA5243, STV5345) ■ PERFORM PDC SYSTEM A (VPS) AND PDC SYSTEM B (8/30/2) DATA STORAGE )SEPARATELY t(s■ DEDICATED "ERROR FREE" OUTPUT FOR cVALID PDC DATA du■ INDICATION OF LINE 23 FOR EXTERNAL roUSE P■ SINGLE +5V SUPPLY VOLTAGE te■ SINGLE 13.875MHz CRYSTAL le■ REDUCED SET OF EXTERNAL oCOMPONENTS, NO EXTERNAL sADJUSTMENT Ob■ OPTIMIZED NUMBER OF DIGITAL SIGNALS -REDUCING EMC RADIATION )■ HIGH DENSITY CMOS TECHNOLOGY t(s■ DIGITAL DATA SLICER AND DISPLAY cCLOCK PHASE LOCK LOOP du■ 28 PIN DIP & SO PACKAGE ProDESCRIPTION teThe STV5348 decoder is a computer-controlled leteletext device including an 8 page internal mem- ory. Data slicing and capturing extracts the teletext oinformation embedded in the composite video sigbsnal. Control is accomplished via a two wire serial OI2C bus ®. Chip address is 22h. Internal ROM pro- PDIP28 (Plastic Package) SO28 (Plastic Package) Figure 2. Pin Connections CVBS MA/SL VDDA POL STTV/LFB FFB VSSD R G 1 2 3 4 5 6 7 8 9 28 CBLK 27 TEST 26 VSSA 25 VSSO 24 XTI 23 XTO 22 VDDD 21 VCR/TV 20 RESERVED vides a character set suitable to display text using up to seven national languages. Hardware and B 10 19 DV software features allow selectable master/slave RGB REF 11 18 L23 synchronizat...