CDK3405 Datasheet, PDF (1/11 Pages) Cadeka Microcircuits LLC. – 8-bit, 180MSPS, Triple Video DACs

Data Sheet
CDK3405
8-bit, 180MSPS, Triple Video DACs
FEATURES
n 8-bit resolution, 180MSPS
n ±2.5% gain matching
n ±0.5% linearity error
n Sync and blank controls
n 1.0V_pp video into 37.5Ω or 75Ω load
n _{Internal bandgap voltage reference}
n Low glitch energy
n Single +3.3V power supply
APPLICATIONS
n Video signal conversion
– RGB
– YCBCR
– Composite, Y, C
n Multimedia systems
n Image processing
n PC Graphics
General Description
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.
Block Diagram
SYNC
BLANK
SYNC
8
G7-0
8-bit D/A
Converter
IO_G
8
B7-0
8-bit D/A
Converter
IO_B
8
R7-0
CLOCK
8-bit D/A
Converter
+1.25V
Ref
IO_R
COMP
R _REF
V _REF
Ordering Information
Part Number
Package Pb-Free
CDK3405ATQ48
TQFP-48 Yes
CDK3405ATQ48Y TQFP-48 Yes
Moisture sensitivity level for all parts is MSL-3.
RoHS Compliant
Yes
Yes
Operating Temp Range
-40°C to +125°C
-40°C to +125°C
Packaging Method
Tray
Tray
Package Quantity
250
1,250
©2009-2010 CADEKA Microcircuits LLC
www.cadeka.com