8-bit, 180MSPS, Triple Video DAC
n 8-bit resolution, 180MSPS
n ±2.5% gain matching
n ±0.5% linearity error
n Sync and blank controls
n 1.0Vpp video into 37.5Ω or 75Ω load
n Internal bandgap voltage reference
n Low glitch energy
n Single +3.3V power supply
n Video signal conversion
– Composite, Y, C
n Multimedia systems
n Image processing
n PC Graphics
CDK3405 is a low-cost triple D/A converter that is tailored to fit graphics and
video applications where speed is critical.
CMOS-level inputs are converted to analog current outputs that can drive
25-37.5Ω loads corresponding to doubly-terminated 50-75Ω loads. A sync
current following SYNC input timing is added to the IOG output. BLANK
will override RGB inputs, setting IOG, IOB and IOR currents to zero when
BLANK = L. Although appropriate for many applications, the internal 1.25V
reference voltage can be overridden by the VREF input.
Few external components are required, just the current reference resistor,
current output load resistors, bypass capacitors, and decoupling capacitors.
Package is a 48-lead TQFP. Fabrication technology is CMOS. Performance is
guaranteed from -40°C to +125°C.
Moisture sensitivity level for all parts is MSL-3.
Operating Temp Range
0°C to +70°C
-40°C to +125°C
48720 Kato Road, Fremont CA 94538, USA
Tel. +1 510 668-7000 - Fax. +1 510 668-7001