SPT5230 Datasheet, PDF (1/7 Pages) Fairchild Semiconductor – 10-BIT, 36 MWPS TRIPLE VIDEO DAC

SPT5230
10-BIT, 36 MWPS TRIPLE VIDEO DAC
FEATURES
• 10-Bit Triple Video Digital-to-Analog Converter
• Output Full-Scale Voltage 0.5 to 2.0 Vp-p
• 36 MWPS Operation (typ)
• Low Power: 280 mW (1 Vp-p Output)
• 5 V Monolithic CMOS
• 52-pin QFP Package (10mm x 10mm, 0.65 mm pitch)
APPLICATIONS
• Desktop Video Processing
• CCIR-601 Video Signal Processing
• RGB Color Monitors
• Image Processing
• Direct Digital Synthesis
GENERAL DESCRIPTION
The SPT5230 is a 10-bit, 36 MWPS triple video digital-to-
analog converter specifically designed for high performance,
high resolution color graphics monitor applications and video
processing applications. A single external resistor controls
the full-scale output current. The differential linearity errors of
the DACs are guaranteed to be a maximum of ±1.0 LSB over
the full temperature range. The device is available in a 52-
lead QFP package over the commercial temperature range.
BLOCK DIAGRAM
R_OUT
AV_DD
AV_DD
I_OR
G_OUT
AV_DD
I_OG
B_OUT
AV_DD
I_OB
VSSA
V_{REF1 VREF}
V_REF2
V_CS2
V_CS1
V_CS
Current
Switch
Cell
Array
(Cell 4)
Current
Switch Cell
Array (Cell 255)
Latch
Current
Switch
Cell
Array
(Cell 4)
Current
Switch Cell
Array (Cell 255)
Latch
Current
Switch
Cell
Array
(Cell 4)
Current
Switch Cell
Array (Cell 255)
Latch
Decoder
Decoder
Decoder
Latch
Latch
Latch