| ??? 03/11/10 07:49 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#173985 - GP2 Responding to: ???'s previous message |
Sachin:
Are you doing this flow meter design as a concept learning exercise? It takes some pretty serious clocking frequencies to make a measurement device with decent resolution. If your intent is to learn fully how the measurement technique works and how you have to design around the tradeoffs then it might make sense to try to roll your own design into an FPGA or high speed CPLD. On the other hand if you have a goal to do some flow measurement input to your MCU and then get on with higher level parts of your project then you should consider something like the ACAM TDC-GP2 chip. This is a second generation version chip from ACAM beyond the one linked earlier in this thread. It is in a smaller package and should be easier to deploy. Here is a link to the US edition of the product web page: http://www.acam-usa.com/GP2.html I am not sure if the GP2 part can be purchased through distribution or not but the above web page has a link to request a quote and ask for support. It may even be possible to request a sample. My recommendation is to use the ready made chip. Michael Karas |
| Topic | Author | Date |
| Counter IC for Ultrasonic flow meter | 01/01/70 00:00 | |
| specialized circuits | 01/01/70 00:00 | |
| FPGA TDC | 01/01/70 00:00 | |
| FPGA difficult | 01/01/70 00:00 | |
| ACAM TDC-GPX ? | 01/01/70 00:00 | |
| Interesting | 01/01/70 00:00 | |
| Mayabe a CPLD would be easier | 01/01/70 00:00 | |
| CPLD | 01/01/70 00:00 | |
| GP2 | 01/01/70 00:00 | |
| I like those GP2 devices | 01/01/70 00:00 | |
Resolution | 01/01/70 00:00 | |
| Not too difficult | 01/01/70 00:00 | |
| psec | 01/01/70 00:00 | |
| there is no reason why not | 01/01/70 00:00 | |
| Silicon delay line | 01/01/70 00:00 | |
| Digital Delay Lines | 01/01/70 00:00 |