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MB8719 MB8734 RCI8719 PLL Synthesizer
xtal or add a
MB8719 MB8734 RCI8719 PLL Synthesizer
MB8719 MB8734 RCI8719 PLL SynthesizerMB8719 MB8734 RCI8719 PLL Synthesizer
Overview
Overview
OverviewOverview
This PLL-circuit use a 6 bit (MB8734 and RCI8719) or 7 bit (MB8719) BCD binary
programmable divide-by-N counter.
Down
Down----converting of the frequency to the divide
DownDown
converting of the frequency to the dividerrrr
converting of the frequency to the divideconverting of the frequency to the divide
This PLL Circuit use a Mixer and a X-Tal Oscillator to convert the output frequency f
Circuit.
The X-Tal frequency is f
XTAL
= f
OUT
- f IN
to the f IN to the PLL
OUT
The output frequency can be changed by changing the mixingÂnew mixing-xtal to the oscillator.
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Pin
Pin
Name
PinPin
1 Out Inverter out
2 In Inverter in
3 Out Inverter out
4 In Inverter in
5 CP Charge Pump
6 LD Loop Detect
7 OSC in Oscillator input
8 OSC out Oscillator output
9 VDD Positive Power Supply
10 P6 Programmable inputs (Binary) (Only MB8719)
11 P5 Programmable inputs (Binary)
12 P4 Programmable inputs (Binary)
Name
Description
NameName
Description
DescriptionDescription
13 P3 Programmable inputs (Binary)
14 P2 Programmable inputs (Binary)
15 P1 Programmable inputs (Binary)
16 P0 Programmable inputs (Binary)
17 F in Frequency input
18 VSS GND Ground
Explanation of pin function terms
Explanation of pin function terms
Explanation of pin function termsExplanation of pin function terms
TRUTH TABLE FOR RCI8719 AND MB8734
TRUTH TABLE FOR RCI8719 AND MB8734
TRUTH TABLE FOR RCI8719 AND MB8734TRUTH TABLE FOR RCI8719 AND MB8734
P5
P5
P4
P4
P3
P3
P2
P2
P1
P5P5
P4P4
P3P3
P2P2
P1
P1P1
P0
P0
P0P0
Divide by N
Divide by N
Divide by NDivide by N
0 0 0 0 0 0 0 + 128
0 0 0 0 0 1 1 + 128
0 0 0 0 1 0 2 + 128
0 0 0 0 1 1 3 + 128
0 0 0 1 0 0 4 + 128
- - - - - - -
- - - - - - -
1 1 1 1 1 1 64 + 128
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TRUTH TABLE FOR MB8719
TRUTH TABLE FOR MB8719
TRUTH TABLE FOR MB8719TRUTH TABLE FOR MB8719
P6
P6
P5
P5
P4
P4
P3
P3
P2
P2
P1
P1
P0
P6P6
P5P5
P4P4
P3P3
P2P2
0 0 0 0 0 0 0 0 + 128
0 0 0 0 0 0 1 1 + 128
0 0 0 0 0 1 0 2 + 128
0 0 0 0 0 1 1 3 + 128
0 0 0 0 1 0 0 4 + 128
- - - - - - - -
- - - - - - - -
0 1 1 1 1 1 1 64 + 128
1 0 0 0 0 0 0 0 + 64
1 0 0 0 0 0 1 1 + 64
1 0 0 0 0 1 0 2 + 64
P1P1
P0
P0P0
Divide by N
Divide by N
Divide by NDivide by N
1 0 0 0 0 1 1 3 + 64
1 0 0 0 1 0 0 4 + 64
1 - - - - - - -
1 - - - - - - -
1 1 1 1 1 1 1 64 + 64
Uniden AM/FM/SSB Chassis
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