10BIT 80MSPS DUAL DAC
BW1221L_2CLK
GENERAL DESCRIPTION
The BW1221L_2CLK is a CMOS Dual
10Bit D/A converter for general &
video applications. Its maximum
conversion rate is 80MSPS (typical
50MSPS) and supply voltage is
3.3V single. An external 1.0V voltage
reference(VREF) and a single resistor
(RSET) control the full_scale output current.
TYPICAL APPLICATIONS
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High Definition Television(DTV,HDTV)
High Resolution Color Graphics
Hard Disk Driver(HDD)
CAE/CAD/CAM
Image Processing
Instrumentation
Conventional Digital to Analog Conversion
FUNCTIONAL BLOCK DIAGRAM
Second Latch 1
Fi rst Latch1
SWITCH 1
Decoeder 1
D1[9:0]
IO1
FEATURES
D2[9:0]
Second Latch 2
Fi rst Latch2
SWITCH 2
IO2
Decoeder 2
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80MSPS 1CLK pipeline delay operation
+3.3V CMOS monolothic construction
鹵0.4LSB differential linearity error(Typ)
鹵1.5LSB integral linearity error(Typ)
External voltage reference
Dual Channel DAC
10-Bit voltage parallel input per channel
High impedance single current output
Bineary coding input
High impedance analog output current
source
COMP
CLK1
CLKGEN
OPA
CM
CLK2
VREF
PD IREF
Ver 1.1 (Dec. 1998)
No responsibility is assumed by SEC for its use nor for any
infringements of patents or other rights of third parties that may
result from its use. The content of this datasheet is subject to
change without any notice.
SEC ASIC
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ANALOG