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CDK3405ATQ48

Description
DAC 8BIT TRIPLE 180MHZ 48-LQFP
Categoryunclassified   
File Size1MB,11 Pages
ManufacturerCadeka
Websitehttp://www.cadeka.com/
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CDK3405ATQ48 Overview

DAC 8BIT TRIPLE 180MHZ 48-LQFP

Data Sheet
CDK3405
FEATURES
n
n
n
n
n
n
n
n
8-bit, 180MSPS, Triple Video DACs
CDK3405
8-bit, 180MSPS, Triple Video DACs
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 IO
G
output. BLANK
will override RGB inputs, setting IO
G
, IO
B
and IO
R
currents to zero when
BLANK = L. Although appropriate for many applications, the internal 1.25V
reference voltage can be overridden by the V
REF
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.
8-bit resolution, 180MSPS
±2.5% gain matching
±0.5% linearity error
Sync and blank controls
1.0V
pp
video into 37.5Ω or 75Ω load
Internal bandgap voltage reference
Low glitch energy
Single +3.3V power supply
APPLICATIONS
n
Video signal conversion
– RGB
– YC
B
C
R
– Composite, Y, C
Multimedia systems
Image processing
PC Graphics
n
n
n
Block Diagram
SYNC
BLANK
SYNC
Rev 1B
G7-0
8
8-bit D/A
Converter
IO
G
B7-0
8
8-bit D/A
Converter
IO
B
R7-0
CLOCK
8
8-bit D/A
Converter
IO
R
COMP
R
REF
V
REF
+1.25V
Ref
Ordering Information
Part Number
CDK3405ATQ48
CDK3405ATQ48Y
Package
TQFP-48
TQFP-48
Pb-Free
Yes
Yes
RoHS Compliant
Yes
Yes
Operating Temp Range
-40°C to +125°C
-40°C to +125°C
Packaging Method Package Quantity
Tray
Tray
250
1,250
Moisture sensitivity level for all parts is MSL-3.
©2009-2010 CADEKA Microcircuits LLC
www.cadeka.com

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