Crystal or DIP Crystal Oscillator would you choose?

The packaged oscillator is much more likely to oscillate, and *far* more likely to oscillate on frequency.

John

And over temperature, with less work. The cost effective choice depends on whether you have a bunch of pieces to build, or a few.

And if you don't care how much juice it sucks.

Best regards, Spehro Pefhany

Yes. I had quite a wide selection of units that pulled some tens of mW, but trying to sort through and find a few with something much more reasonable was difficult -- as in, very frustrating.

In the meantime, there is the HA7210 that can help for lower power. Also, I've found that where you already have an external oscillator available, in some cases you can drive the OUTPUT side of the two-pin xtal class-A oscillators and cause the internal inverter to find a stable, quiescent state where it doesn't oscillate at all and thus draw power. That alone can cut power consumption in half over what would happen when you try and drive the INPUT side where the internal inverter just ticks away and sucks power. Those inverters can be surprising in what they suck down when they invert, it seems. Of course, you have to have a case where the output side does in some way drive the internal chip. Some of the PICs are like that, for example, and drive quite well from the output pin at substantially lower power.

Jon

Hello Mingyan,

In cost critical cases I always design with individual crystals. If you meant the CD4060 this already has an oscillator provision in there.

Regards, Joerg