EE版 - FPGA I/O configuration |
|---|
|
|
|
|
|
|
b********4
发帖数: 5 | 1 Hello Everyone,
The output of my Altera DE2 board is 3.3V and I want to convert it to a 1.2V
output voltage.
I am wondering if it is possible that anybody can give me some suggestions
about how to implement the open drain I/O configuration to achieve the 1.2V
output voltage?
Thank you very much! | a****l
发帖数: 8211 | 2 最简单可靠的就是用电阻.一般的输入都是大阻抗的,应该抗的住.
2V
2V
【在 b********4 的大作中提到】
: Hello Everyone,
: The output of my Altera DE2 board is 3.3V and I want to convert it to a 1.2V
: output voltage.
: I am wondering if it is possible that anybody can give me some suggestions
: about how to implement the open drain I/O configuration to achieve the 1.2V
: output voltage?
: Thank you very much!
| d*******l
发帖数: 2567 | 3 try to find some bus conversion transceiver such as:
http://www.nxp.com/#/pip/pip=[pip=74ALVCH16374_2]|pp=[t=pip,i=74ALVCH16374_2]
2V
2V
【在 b********4 的大作中提到】
: Hello Everyone,
: The output of my Altera DE2 board is 3.3V and I want to convert it to a 1.2V
: output voltage.
: I am wondering if it is possible that anybody can give me some suggestions
: about how to implement the open drain I/O configuration to achieve the 1.2V
: output voltage?
: Thank you very much!
| d****o
发帖数: 1112 | 4 FET,open drain
【在 d*******l 的大作中提到】
: try to find some bus conversion transceiver such as:
: http://www.nxp.com/#/pip/pip=[pip=74ALVCH16374_2]|pp=[t=pip,i=74ALVCH16374_2]
:
: 2V
: 2V
| t****i
发帖数: 182 | 5 If you need it for I2C type of operations (open drain), you will need it to
be a bi-dir FET type of bus level shifter. Simple resistor based voltage div
ider won't work well.
Usual industry device for this type of application can be found with TI and
Philips (NXP). e.g : TVC3306.
http://focus.ti.com/lit/ml/scyb030/scyb030.pdf
2V
2V
【在 b********4 的大作中提到】
: Hello Everyone,
: The output of my Altera DE2 board is 3.3V and I want to convert it to a 1.2V
: output voltage.
: I am wondering if it is possible that anybody can give me some suggestions
: about how to implement the open drain I/O configuration to achieve the 1.2V
: output voltage?
: Thank you very much!
| g*****u
发帖数: 14294 | |
|
|
|
|
|
|
|
