PLL Frequency Synthesizer
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MSM5807 PLL Frequency Synthesizer
Overview - This PLL-circuit use a 8 ...
Description
Provided By GigiVideo - http://www.digivideo.biz
MSM5807 PLL Frequency Synthesizer
Overview - This PLL-circuit use a 8 bit BCD binary programmable divide-by-N counter.
Down-converting of the frequency to the divider
This PLL Circuit use a Mixer and a X-Tal Oscillator to convert the output frequency f OUT to the f IN to the PLL Circuit. The X-Tal frequency is f XTAL = f OUT - f IN
The output frequency can be changed by changing the mixing-xtal or add a new mixing-xtal to the oscillator.
PINOUT Description Pin Name
Description
1 P5 Programmable input 5
2 P6 Programmable input 6
3 P7 Programmable input 7
4 P8 Programmable input 8
5 FS Function Select - HIGH=Divided by 512 LOW=Divided by 1024
6 RI Reference Oscillator Input
7 RO Reference Oscillator Output
8 GND Ground
9 PD Phase Detector Output
10 LD Loop Detect - Unlocked=HIGH Locked=HIGH
11 F in VCO Frequency Input
12 P1 Programmable input 1
13 P2 Programmable input 2
14 P3 Programmable input 3
15 P4 Programmable inpu...
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