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參數(shù)資料
| 型號(hào)： | CXD2307 |
| 廠商： | Sony Corporation |
| 英文描述： | 10-bit 50MSPS RGB 3-channel D/A Converter |
| 中文描述： | 10位50 MSPS的的RGB三通道D / A轉(zhuǎn)換 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 250K |
| 代理商： | CXD2307 |
—10—
CXD2307R
Notes on Operation
How to select the output resistance
The CXD2307R is a D/A converter of the current output type. To obtain the output voltage connect the
resistance to the current output pins RO, GO and BO. For specifications we have:
Output full scale voltage
V
FS
=1.8 to 2.0 [V]
Output full scale current
I
FS
=less than 15 [mA]
Calculate the output resistance value from the relation of V
FS
=I
FS
×
R
OUT
. Also, 16 times resistance of the
output resistance is connected to reference current pin IRR, IRG and IRB. 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 V
RR
,V
RG
and the VRB
pin, and R
OUT
is the resistance connected to the current output pins RO, GO and BO while R
IR
is connected
to IRR, IRG and IRB. 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
Analog power supply and digital 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 from RO and RO
b) The sum of the currents output from GO and GO
c) The sum of the currents output from 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 |
|---|---|
| CXD2307R | 10-bit 50MSPS RGB 3-channel D/A Converter |
| CXD2308Q | 10-bit 50MSPS RGB 3-channel D/A Converter |
| CXD2309AQ | 10-Bit 85MSPS RGB 3-Channel D/A Converter(10位、85MSPS、處理三原色RGB的三通道D/A轉(zhuǎn)換器) |
| CXD2309 | 10-bit 50MSPS RGB 3-channel D/A Converter |
| CXD2309Q | 10-bit 50MSPS RGB 3-channel D/A Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXD2307R | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:10-bit 50MSPS RGB 3-channel D/A Converter |
| CXD2308Q | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:10-bit 50MSPS RGB 3-channel D/A Converter |
| CXD2309 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:10-bit 50MSPS RGB 3-channel D/A Converter |
| CXD2309AQ | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:10-bit 85MSPS 3-Channel D/A Converter |
| CXD2309Q | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:10-bit 50MSPS RGB 3-channel D/A Converter |
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