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PDF CXD2308Q Data sheet ( Hoja de datos )
| Número de pieza | CXD2308Q | |
| Descripción | 10-bit 50MSPS RGB 3-channel D/A Converter | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXD2308Q
10-bit 50MSPS RGB 3-channel D/A Converter
Description
The CXD2308Q is a 10-bit high-speed D/A
converter for video band, featuring RGB 3-channel
I/O. This is ideal for use in high-definition TVs and
high-resolution displays.
64 pin QFP (Plastic)
Features
• Resolution 10-bit
• Maximum conversion speed 50MSPS
• RGB 3-channel I/O
• Differential linearity error ±0.5LSB
• Low power consumption 500 mW (Typ.)
• Single +5 V power supply
• Low glitch
• Stand-by function
Structure
Silicon gate CMOS IC
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage AVDD, DVDD
7
V
• Input voltage (All pins)
VIN VDD+0.5 to VSS–0.5 V
• Output current (for each channel)
IOUT
0 to 30
mA
• Storage temperature
Tstg –55 to +150 °C
Recommended Operating Conditions
• Supply voltage AVDD, AVSS 4.75 to 5.25
V
DVDD, DVSS 4.75 to 5.25
V
• Reference input voltage
VREF
1.8 to 2.0
V
• Clock pulse width
TPW1,TPW0 9 ns (min.) to 1.1 µs (max.)
• Operating temperature
Topr
–20 to +75
°C
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E92929D01
1 page  
CXD2308Q
Pin No.
52
Symbol
RO
56 GO
60 BO
53 RO
57 GO
61
54, 55, 58,
59, 62, 63
64
BO
AVDD
DVDD
Description of Operation
I/O Equivalent circuit
AVDD
52
56
60
AVSS
AVDD
53
57
61
AVSS
—
Description
Current output.
Output can be retrieved by
connecting a resistance of 75 Ω to
AVSS.
Reverse current output.
Normally connected to AVSS.
Analog VDD.
Digital VDD.
Timing Chart
tPW1 tPW0
CLK 1.5V
ts th
ts th
ts th
DATA
tPD 100%
D/A OUT
tPD
tPD
I/O Correspondence Table (output full-scale voltage: 2.00 V)
Input code
Output voltage
MSB
LSB
1111111111
:
1000000000
:
0000000000
2.0 V
1.0 V
0V
—5—
50%
0%
5 Page 
CXD2308Q
Latch Up Prevention
The CXD2308Q is a CMOS IC which requires latch up precautions. Latch up is mainly generated by the lag in
the voltage rising time of AVDD and DVDD, when power supply is ON.
1. Correct usage
a. When analog and digital supplies are from different sources
AVDD
DVDD
AVDD
DVDD
+5V +5V
C
CXD2308Q
C
AVSS
AVSS
DVSS
DVSS
b. When analog and digital supplies are from a common source
(i)
DVDD
DIGITAL IC
AVDD
DVDD
+5V C
C CXD2308Q
AVSS
AVSS
DVSS
DVSS
(ii)
DVDD
DIGITAL IC
+5V
C
AVSS
AVDD
CXD2308Q
DVDD
C
AVSS
DVSS
DVSS
—11—
DIGITAL IC
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet CXD2308Q.PDF ] | |
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