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PDF SPT5230 Data sheet ( Hoja de datos )
| Número de pieza | SPT5230 | |
| Descripción | 10-BIT / 36 MWPS TRIPLE VIDEO DAC | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SPT5230 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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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
ROUT
AVDD
AVDD
IOR
GOUT
AVDD
IOG
BOUT
AVDD
IOB
VSSA
VREF1 VREF
VREF2
VCS2
VCS1
VCS
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
1 page  
Figure 4 – Typical Interface Circuit
AVDD
1.2 kΩ
AVDD
0.1 µF
20 kΩ
6 kΩ
0.1 µF
AVDD +5 V
0.75 kΩ
1.2 kΩ
0.1 µF
AVDD
AVDD
AVDD
0.1 µF
VCS2
VCS1
AVDD
VREF1
AVSS
BOUT
AVSS
GOUT
AVSS
ROUT
AVSS
AVDD
AVDD
40
41
42
43
44
45
46
47
48
49
50
51
52
SPT5230
26 B7
25 B8
24 B9 (MSB)
23 AVSS
22 N/C
21 GØ (LSB)
20 G1
19 G2
18 G3
17 G4
16 G5
15 G6
14 G7
Figure 5 – Recommended Output Level Shifting Circuit
AVD
D
10 DAC
1 of 3
75 Ω
-
+
NOTE: All three DACs use the
same circuit configuration.
AVD
D
75 Ω
10 Ω
Out
75 Ω
-FS
5
SPT5230
5/1/00
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet SPT5230.PDF ] | |
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