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參數(shù)資料
| 型號(hào)： | CXD2302 |
| 廠商： | Sony Corporation |
| 英文描述： | 8-bit 50MSPS Video A/D Converter with Clamp Function |
| 中文描述： | 8位50 MSPS的視頻A / D轉(zhuǎn)換器與鉗位功能 |
| 文件頁(yè)數(shù)： | 23/25頁(yè) |
| 文件大?。?/td> | 344K |
| 代理商： | CXD2302 |
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CXD2302Q
Notes on Operation
1. Reference voltage
Shorting AV
DD
and V
RTS
, AV
SS
and V
RBS
will activate the self-bias function that generates V
RT
= about 2.6V
and V
RB
=about 0.5V. On the PCB, either self bias or the external reference voltage can be selected
depending on the junction method of the jumper line. At shipment from the factory, reference voltage is
provided in self bias. Also, to provide external reference voltage, adjust the dynamic range (V
RT
– V
RB
) to
above 1.8Vp-p.
2. Clock input
There are 2 modes for the PCB clock input
1) Provided from the external signal generator. (External clock)
2) Using the crystal oscillator (built-in clock driver). (Internal clock)
The 2 modes are selected using the switch on the PCB.
3. The 2 Latch ICs (74S174) are not absolutely necessary for the evaluation of ADC and DAC. That is,
operation will still be normal if ADC output data is directly input to DAC input. However, as ADC output
data is hardly ever D/A converted without executing Digital signal processing, it was mounted to indicate
an example layout of Digital signal processing IC. Use the Latch IC output when the ADC output data is
used.
4. When clamp is not used
Turning CLE to H will set OFF the clamp function. In this case, the DC element is cut off by means of C
2
on
the main board and DC voltage on the ADC side of C
2
turns to about (V
RT
+V
RB
)/2. To transfer DC elements
of input signals, short C
2
. At that time, it is necessary to bias input signals, but keeping R
2
open, Q
3
can
also be used as buffer. Use the open space for the bias circuit.
5. Clamp pulse latch
On the evaluation board, the clamp pulse is latched with ADC sampling CLK and then input to CLP pin.
However, the latch is incorporated in CLP pin of the CXD2302Q, so that the external latch is not required.
6. Peripheral through hole
There is a group of through holes on the Analog input, output and Logic. There are to be used when
mounting additional circuits to the PCB. Use when necessary.
The connector hole on DAC part is used to mount the test chassis mount jack.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CXD2302Q | 8-bit 50MSPS Video A/D Converter with Clamp Function |
| CXD2303AQ | 8-Bit 3-Channel 50MSPS Video A/D Converter With Clamp Function(8位、50MSPS、三通道視頻A/D轉(zhuǎn)換器（具有箝位功能）) |
| CXD2304R | 8-Bit 20 MSPS RGB 3-Channel D/A Converter(8位、20MSPS、處理三原色RGB的三通道D/A轉(zhuǎn)換器) |
| CXD2307 | 10-bit 50MSPS RGB 3-channel D/A Converter |
| CXD2307R | 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 |
|---|---|
| CXD2302Q | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:8-bit 50MSPS Video A/D Converter with Clamp Function |
| CXD2303AQ | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:8-bit 3-channel 50 MSPS Video A/D Converter with clamp function |
| CXD2304 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:8-bit 20 MSPS RGB 3-Channel D/A Converter |
| CXD2304R | 制造商:SONY 制造商全稱: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:Sony Corporation 功能描述:10-bit 80MSPS 1ch D/A Converter |
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