CDK3400/CDK3401 10-bit, 100/150MSPS, Triple Video DACs Rev 1D Data Sheet CDK3400/CDK3401 10-bit, 100/150MSPS, Triple Video DACs FEATURES General Description n 10-bit resolution CDK3400/3401 products are low-cost triple D/A converters that are tailored n 150 megapixels per second to fit graphics and video applications where speed is critical. Two speed n 0.1% linearity error grades are available: CDK3400 at 100MSPS and CDK3401 at 150MSPS. n Sync and blank controls TTL-level inputs are converted to analog current outputs that can drive n 1.0V video into 37.5 or 75 load pp 25-37.5 loads corresponding to doubly-terminated 50-75 loads. A sync n Internal bandgap voltage reference current following SYNC input timing is added to the IO output. BLANK G n Double-buffered data for low distortion will override RGB inputs, setting IO , IO and IO currents to zero when G B R n TTL-compatible inputs BLANK = L. Although appropriate for many applications, the internal 1.235V n Low glitch energy reference voltage can be overridden by the V input. REF n Single +5V power supply Few external components are required, just the current reference resistor, current output load resistors, and decoupling capacitors. APPLICATION S n Package is a 48-lead TQFP. Fabrication technology is CMOS. Performance is Video signal conversion RGB guaranteed from 0 to 70C. YC C B R Composite, Y, C Block Diagram n Multimedia systems n Image processing SYNC SYNC n True-color graphics systems BLANK (1 billion colors) n Broadcast television equipment 10 10-bit D/A n High-Definition Television (HDTV) IO G9-0 G Converter equipment n Direct digital synthesis 10 10-bit D/A IO B9-0 B Converter 10 10-bit D/A IO R9-0 R Converter CLOCK COMP R REF +1.235V V REF Ref Ordering Information Part Number Package Pb-Free RoHS Compliant Operating Temp Range Packaging Method Package Quantity CDK3400CTQ48 TQFP-48 Yes Yes 0C to +70C Tray 250 CDK3401CTQ48 TQFP-48 Yes Yes 0C to +70C Tray 250 Moisture sensitivity level for all parts is MSL-3. Exar Corporation www.exar.com 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 - Fax. +1 510 668-7001CDK3400/CDK3401 10-bit, 100/150MSPS, Triple Video DACs Rev 1D Data Sheet Pin Configuration TQFP-48 1 36 G1 R REF 2 35 G2 V REF 3 34 G3 COMP 4 33 G4 IO R TQFP G5 5 32 IO G G6 6 CDK3400/3401 31 V DD G7 7 30 V DD G8 8 29 IO B G9 9 28 GND BLANK 10 27 GND SYNC 11 26 CLOCK V 12 25 NC DD Pin Assignments Pin No. Pin Name Description Clock and Pixel I/O 26 Clock Input CLK 47-37 Red Pixel Data Inputs R9-0 48, 91 Green Pixel Data Inputs G9-0 2314 Blue Pixel Data Inputs B9-0 Controls 11 Sync Pulse Input SYNC 10 Blanking Input BLANK Video Outputs Red Current Output 33 IOR 32 IOG Green Current Output 29 IOB Blue Current Output Voltage Reference 35 V Voltage Reference Output/Input REF 36 R Current-Setting Resistor REF 34 COMP Compensation Capacitor Power and Ground 12, 30, 31 V Power Supply DD 27, 28 GND Ground 2009-2013 Exar Corporation 2/11 Rev 1D NC 13 48 G0 B0 14 47 R9 B1 15 46 R8 B2 16 45 R7 B3 17 44 R6 18 43 R5 B4 B5 19 42 R4 B6 20 41 R3 B7 21 40 R2 B8 22 39 R1 B9 23 38 R0 NC 24 37 NC