PLL RF synthesizers and Flowcode

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radist73
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PLL RF synthesizers and Flowcode

Postby radist73 » Mon Dec 12, 2016 9:56 am

Hello,
I think, may be very useful for RF equipment designers to make a PLL component for Flowcode.
MB, LMX and MC series PLL synthesizers have a serial interface as SPI, pll internal register length not 8 or 16 bit, but may be 15, 19, 21 bit...
For example old pll ic MB1501 is very simple and useful for "playing", because assembled boards with pll chip and 400-500mhz Voltage Controlled Oscillator can be found from old NMT mobile phones.
http://www.rf-microwave.com/datasheets/ ... 1PF_01.pdf
Same control type have LMX series synthesizers from Texas Instruments
http://www.ti.com/lit/ds/symlink/lmx2316.pdf
and Motorola chips
http://www.qsl.net/n9zia/mc145158/MC145158.pdf

For control pll, microcontroller must send to pll 3 variables, N counter value, R counter value and A counter value (LMX need B counter too).
I think, mey be universal component, where user can choose each counter register length (5-25bit), may be any predefined chips too.
Ideas? Comments?

Thanks!