CXA2016S

CXA2016S Sync Identification for CRT Display Description The CXA2016S is used for sync signal identification and waveform shaping in the CRT computers display for multi-scan system. There are three types of sync input signals for identification: separate sync, composite sync, and sync on video signals. Features Power save function available (5 V power supply) Clamp pulse output position selectable among sync interval, back porch interval, and AUTO. Polarity information of sync signals is output. Polarity and amplitude of input signals: Polarity Amplitude (Vp-p) V. separate sync: Positive/Negative 1 to 5 H. separate sync: Positive/Negative 1 to 5 Composite sync: Positive/Negative 1 to 5 Sync on video: Sync signals part of Negative 0.2 to 0.4 Video part 0 to 1.4 Applications CRT display monitor Pin Configuration (Top View) 1 2 3 VCC 22 VD 21 VSS IN 20 VSS OUT 19 PH 16 Polarity Check Exist Check 18 HD Logic VS IN PV 22 pin SDIP (Plastic) Absolute Maximum Ratings (Ta=25°C) Supply voltage VCC 12 V Operating temperature Topr –20 to +75 °C Storage temperature Tstg –65 to +150 °C Allowable power dissipation PD 962 mW Operating Conditions Supply voltage VCC 5 ± 0.25 V Block Diagram PVC EVC VS IN PVC EVC 2 3 1 17 Polarity Check V. Ramp Generator Exist Check 21 VD 8 HD SEL 4 CS IN 5 6 7 8 PHC EHC Video IN HD SEL HD 18 CS IN 4 5 6 7 PV 17 PHC 9 ISC Clamp Pulse Generator Sync Sep Sync Check Bias 13 CLP OUT 14 CLP OUT PH 16 EHC CLP SEL 15 Video IN 15 C...