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參數(shù)資料
| 型號(hào)： | CXD2304 |
| 廠商： | Sony Corporation |
| 英文描述： | 8-bit 20 MSPS RGB 3-Channel D/A Converter |
| 中文描述： | 8位20 MSPS的的RGB三通道D / A轉(zhuǎn)換 |
| 文件頁(yè)數(shù)： | 11/15頁(yè) |
| 文件大?。?/td> | 249K |
| 代理商： | CXD2304 |
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CXD2304R
Notes on Operation
How to select the output resistance
The CXD2304R is a D/A converter of the current output type. To obtain the output voltage connect the
resistance to the current output pins R0, G0 and B0. For specifications we have;
Output full scale voltage
V
FS
=1.12 to 1.36 [V]
Output full scale current
I
FS
=3.8 [mA] (typ.)
Calculate the output resistance value from the relation of V
FS
=I
FS
×
R
OUT
. Also, 16 times resistance of the
output resistance R
OUT
is connected to reference current pin IREF. In some cases, however, this turns out to
be a value that does not actually exist. In such a case a value close to it can be used as a substitute.
Here please note that V
FS
becomes
V
FS
=V
REF
×
16R
OUT
/R
IR
.
V
REF
is the voltage set at the reference voltage pin VREF and R
OUT
is the resistance connected to the current
output pins RO, GO and BO while R
IR
is connected to IREF pin.
Increasing the resistance value can curb power consumption. On the other hand glitch energy and data
settling time will inversely increase. Set the most suitable value according to the desired application.
Phase relation between data and clock
To obtain the expected performance as a D/A converter, it is necessary to set properly the phase relation
between data and clock applied from the exterior. Be sure to satisfy the provisions of the setup time (t
S
) and
hold time (t
H
) as stipulated in the Electrical Characteristics.
Power supply and ground
To reduce noise effects separate analog and digital systems in the device periphery. For power supply pins,
both digital and analog, bypass respective grounds by using a ceramic capacitor of about 0.1 μF, as close as
possible to the pin.
Latch up
Digital power supply and analog power supply have to be common at the PCB power supply source. This is
to prevent latch up due to voltage difference between AV
DD
and DV
DD
pins when power supply is turned ON.
RO, GO and BO pins
The RO, GO and BO pins are the inverted current output pins described in the Pin Description. The sums
shown below become the constant value for any input data.
a) The sum of the currents output form RO and RO
b) The sum of the currents output form GO and GO
c) The sum of the currents output form BO and BO
However, the performances such as the linearity error of the inverted current output pin output current is not
guaranteed.
Output full-scale voltage
For the applications using the RGB signal, the color balance may be broken up when the no-adjusted output
full-scale voltage is used.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CXD2306 | 10-bit 80MSPS 1ch D/A Converter |
| CXD2306Q | PYROLYTIC GRAPHITE SHTS 60X90MM |
| CXD2310 | 10-bit 20MSPS Video A/D Converter |
| CXD2311 | 10-bit 20MSPS Video A/D Converter |
| CXD2312R | 9-Bit 20MSPS Video A/D Converter(9位、20MSPS、視頻A/D轉(zhuǎn)換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXD2304R | 制造商:SONY 制造商全稱(chēng):Sony Corporation 功能描述:8-bit 20 MSPS RGB 3-Channel D/A Converter |
| CXD2306 | 制造商:SONY 制造商全稱(chēng):Sony Corporation 功能描述:10-bit 80MSPS 1ch D/A Converter |
| CXD2306Q | 制造商:SONY 制造商全稱(chēng):Sony Corporation 功能描述:10-bit 80MSPS 1ch D/A Converter |
| CXD2307 | 制造商:SONY 制造商全稱(chēng):Sony Corporation 功能描述:10-bit 50MSPS RGB 3-channel D/A Converter |
| CXD2307R | 制造商:SONY 制造商全稱(chēng):Sony Corporation 功能描述:10-bit 50MSPS RGB 3-channel D/A Converter |
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