Digital to analogue converter

[bigpete]

Hello,

I am in need of some info on a digital to analogue converter.
I am using a picaxe microcontroller to controll a stepper motor via a
stepper motor pulse generater and microstep driver as bought from ocean
controls.
The pulse generator has in one of its options a 5k pot input so you can
set two out put frequencies and vary between them using the pot.
I want to eliminate the pot and have the micro do it.
I need info on a readliy available DIP IC which has either parallel or
serial input or both, 8 bit resolution, single polarity 5volt for
instance, voltage output and a ref pin which I can connect the 5v ref from
the pulse generator.

I have found data on a max522 which looks like it would do the job but
farnell only have it in surface mount which is beyond my soldering skills.

Any help would be much appreciated.

--
Posted at www.usenet.com.au

 

[|-|erc]

"bigpete" <YmlncGV0ZV9oQGhvdG1haWwuY29t@REGISTERED_USER_usenet.com.au> wrote in

Hello,

I am in need of some info on a digital to analogue converter.
I am using a picaxe microcontroller to controll a stepper motor via a
stepper motor pulse generater and microstep driver as bought from ocean
controls.
The pulse generator has in one of its options a 5k pot input so you can
set two out put frequencies and vary between them using the pot.
I want to eliminate the pot and have the micro do it.
I need info on a readliy available DIP IC which has either parallel or
serial input or both, 8 bit resolution, single polarity 5volt for
instance, voltage output and a ref pin which I can connect the 5v ref from
the pulse generator.

I have found data on a max522 which looks like it would do the job but
farnell only have it in surface mount which is beyond my soldering skills.

Any help would be much appreciated.

can you use the microcontroller to send the pulses directly?
You're going digital to analogue purely to make a single digital output.

Herc

 

[L.A.T.]

"bigpete" <YmlncGV0ZV9oQGhvdG1haWwuY29t@REGISTERED_USER_usenet.com.au> wrote
in message news:h4b1s4$lsr$1@news.eternal-september.org...

Hello,

I am in need of some info on a digital to analogue converter.
I am using a picaxe microcontroller to controll a stepper motor via a
stepper motor pulse generater and microstep driver as bought from ocean
controls.
The pulse generator has in one of its options a 5k pot input so you can
set two out put frequencies and vary between them using the pot.
I want to eliminate the pot and have the micro do it.
I need info on a readliy available DIP IC which has either parallel or
serial input or both, 8 bit resolution, single polarity 5volt for
instance, voltage output and a ref pin which I can connect the 5v ref from
the pulse generator.

I have found data on a max522 which looks like it would do the job but
farnell only have it in surface mount which is beyond my soldering skills.

Any help would be much appreciated.

--
Posted at www.usenet.com.au

The regulars on this forum are very helpful

http://www.picaxeforum.co.uk/

 

[Electronworks.co.uk]

"bigpete" <YmlncGV0ZV9oQGhvdG1haWwuY29t@REGISTERED_USER_usenet.com.au> wrote
in message news:h4b1s4$lsr$1@news.eternal-september.org...

Hello,

I am in need of some info on a digital to analogue converter.
I am using a picaxe microcontroller to controll a stepper motor via a
stepper motor pulse generater and microstep driver as bought from ocean
controls.
The pulse generator has in one of its options a 5k pot input so you can
set two out put frequencies and vary between them using the pot.
I want to eliminate the pot and have the micro do it.
I need info on a readliy available DIP IC which has either parallel or
serial input or both, 8 bit resolution, single polarity 5volt for
instance, voltage output and a ref pin which I can connect the 5v ref from
the pulse generator.

I have found data on a max522 which looks like it would do the job but
farnell only have it in surface mount which is beyond my soldering skills.

Any help would be much appreciated.

--
Posted at www.usenet.com.au

MAX550

8 bit DIP with SPI input. Get them as a sample from Maxim.

Works a treat..

--
Bill
www.electronworks.co.uk
Electronic Kits for Education and Fun