Motorola HT Series Service Manual page 28


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DATA (U409 Pin 100)
CLOCK (U409 Pin 1)
CSX (U409 Pin 2)
MOD IN (U404 Pin 40)
+5V (U247 Pin 4)
5,20,34,36
(U248 Pin 5)
Reference
Oscillator
Voltage
Multiplier
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DATA
8
CLK
9
CEX
10
MODIN
13,30
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CC
U201
V , 3.3V Low Voltage
DD
Fractional-N
23
XTAL1
Synthesizer
24
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25
WARP
32
PREIN
47
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43
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45
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41
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3
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2
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28
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40
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39
BIAS2
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Transistors
5V
Prescaler In
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FREF (U201 Pin 21 & U404 Pin 34)
Steering
2-Pole
Line
Loop Filter
Dual
Transistors Voltage
Controlled
Filtered 5V
Oscillator
Dual
R405
LO RF
Injection
TX RF
Injection
(First Stage of PA)