SmartMouse modified... - GSM-Forum

Hack78 · 06-09-2003, 14:27

I can only change only the Xtal to modify a SmartMouse (or a CardMaestro), to increase extraction speed?

Tnx

Regards, Hack78.

Alf · 06-09-2003, 19:11

Usually yes... but it depends a lot on the way the oscilator was built... do you have your schematic?

Have in mind that the oscillator is not only the crystal... usually there's an inverter IC, two ground capacitors and often a resistor.

Usually the capacitors have to be changed for better frequency statbility, but... maybe you can manage just my exchanging the crystal...

I have a MaKinterface for KI extraction and change the crystal from 3.57945 to values like 6, 10.7 and even 20Mhz without problem... but I think it has a special oscilator IC

06-09-2003, 14:27	#1 (permalink)
Hack78 Junior Member Join Date: Jul 2002 Location: Italy Posts: 34 Member: 13592 Status: Offline Thanks: 0 Thanked 0 Times in 0 Posts	SmartMouse modified... I can only change only the Xtal to modify a SmartMouse (or a CardMaestro), to increase extraction speed? Tnx Regards, Hack78.

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06-09-2003, 19:11	#2 (permalink)
Alf No Life Poster Join Date: Sep 2001 Location: Portugal Age: 35 Posts: 693 Member: 6156 Status: Offline Thanks: 1 Thanked 3 Times in 3 Posts	Usually yes... but it depends a lot on the way the oscilator was built... do you have your schematic? Have in mind that the oscillator is not only the crystal... usually there's an inverter IC, two ground capacitors and often a resistor. Usually the capacitors have to be changed for better frequency statbility, but... maybe you can manage just my exchanging the crystal... I have a MaKinterface for KI extraction and change the crystal from 3.57945 to values like 6, 10.7 and even 20Mhz without problem... but I think it has a special oscilator IC