| Author |
Message |
    
Elmars1
| | Posted on Wednesday, March 06, 2002 - 7:37 pm: | 
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Does anybody know the mod for PLL02a to get above 27.705MHZ. I've found several web sites with details but no info to get above 705. Hopefully by jumping pins. Thanks...... |
Tech181
| | Posted on Thursday, March 07, 2002 - 12:54 pm: |
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Elmars1,
You will need an add-on kit to get more freqs from that PLL.
Steve
Tech181
Tech181@copperelectronics.com |
Elmars1
| | Posted on Thursday, March 07, 2002 - 7:06 pm: |
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Do you mean the kit would get me above 705?
What does an add on kit consist of? |
Jyd
| | Posted on Friday, March 08, 2002 - 10:21 am: |
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i think i have that mod i will look |
Jyd
| | Posted on Friday, March 08, 2002 - 10:59 am: |
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the formula for this is-new xtal=current10 mhz xtal+(n*0.1125) or new xtal=current 20mhz xtal+ or-(n*0.225)where n is the number of 40 channels segments abouve or below "legal" 40 channels. so a crystal of (10.0525mhz+0.1125mhz )or 10.165 would give you 40 channels starting at 27.415. (1)cut all leads to pins 9 and 10.(2)reconnect the cuts with 3k3 resisters.(3)mount switches or use pa switch connect a wire to pin 10 and to pin 9, pin 10 after the resister and pin 9 before the resister you need 2,2 position switches.one switch connect to pin 10 before resister and ground to otherside next switch connect pin 10side after resister otherside connect pin 9 before resister 26.065 to 27.705. |
Tech181
| | Posted on Saturday, March 09, 2002 - 12:14 am: |
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Well, there you go. Thanks JYD.
Steve
Tech181
Tech181@copperelectronics.com |
Jyd
| | Posted on Saturday, March 09, 2002 - 9:09 am: |
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your welcome,complements of the web,i always print out things like this from other websites.come real handy,actually i think it will go a little higher in fequency. i have stacks of papers, they come real handy.good day |
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