| ??? 04/07/09 08:24 Read: times |
#164441 - Bigger Responding to: ???'s previous message |
Jecksons Ben said:
Kai Klaas said:
You mean an oscillator whose output can be put in tristate mode, by the help of a control signal? And everything you have now is a crystal showing two pins?[.......]
Then, you should build a Pierce oscillator by the help of an CMOS inverter like the 74HC04 e.g. followed by a tristate buffer like the 74HC125. Or is it enough to be able to turn the oscillator off, where the osillator is allowed to emit permanently 0 or 1? What is your clock frequency? Kai Thank you I'm thinking similiar like above,something like 74HC04 but the chip smd bigger than osc.module+PCB. Looking small chips with 5-6 pins.2 pins for Xtal and Caps.,2 for VCC and GND and 1 to 2 for output. Are there at market? Thank you very much Jeckson Ben Use can use an Bipolar NPN transistor(require tuning) but only after you clarify the clock frequency as asked. Are you sure you can handel the discrete solution . -Ap You still havent told the clock frequency |
