Transmisor de FM sintetizado con PLL (Berkeley)
Free Radio Berkeley PLL Parts List (with corrections) -----------------------------------------------------
****** Use parts placement diagram when building ****** ****** Ignore circuit board markings for this to work ******
Resistors ---------
R1 82K R2 82K R3 82K R4 82K R5 56K R6 56K R7 680 R8 100K R9 33K R10 100 R11 15K R12 470 R13 2.4K (with ferrite bead) R14 33K R15 100 R16 4.7K R17 1K (with ferrite bead) R18 22 R19 n/a R20 100K R21 15K (Pre-emphasis, should be 16K metal film) R22 n/a R23 n/a R24 220 R25 1K R26 10K potentiometer
Capacitors Note: 1000 pf = .001 uf ----------
C1 1000 pf C2 1000 pf C3 5 pf C4 0.01 uf C5 0.1 uf C6 10 pf (near crystal) C7 22 pf C8 0.022 uf C9 0.022 uf C10 n/a C11 n/a C12 0.01 uf C13 10 uf electrolytic C14 22 pf C15 5-30 pf variable C16 10 uf electrolytic C17 0.01 uf C18 22 pf C19 n/a C20 22 pf C21 1000 pf C22 47 uf electrolytic C23 220 pf C24 10-50 pf variable C25 n/a C26 0.01 uf C27 n/a C28 1000 pf C29 0.22 uf (near R5,R6 Marked C10 on PCB) C29a 0.1 uf (bypass near IC4) C30 0.22 uf (near R5,R6 Marked C11 on PCB) C30a 5-30 pf variable (near crystal) C31 0.0047 uf (on audio input) C31a 0.1 uf (bypass near SW1) C32 0.01 uf C33 0.1 uf C34 22 pf C35 22 pf C36 1000 pf C37 0.1 uf C38 n/a C39 0.1 uf C40 1000 pf C41 0.1 uf C42 10 uf electrolytic C43 0.01 uf C44 22 pf C45 10-50 pf variable C46 n/a C47 5 pf C48 n/a C49 n/a C50 10 uf electrolytic C51 1000 pf C52 0.1 uf C53 1000 pf (near IC4) C53a 10 uf electrolytic (near RF output labeled C38 on PCB)
Diodes ------
D1 MV2109 varactor LED1 5mm LED red
Transistors / IC's ------------------
IC1 MC12017 prescaler IC2 MC145152 PLL frequency synthesizer IC3 LF351 IC4 LM2940CT IC5 78L05 (replace with 7805 on heatsink) IC6 78L09 Q1 MPSH17 Q2 MPSH17 Q3 2N4427
Misc / Hardware ---------------
L1 wideband RF choke L2 wideband RF choke L3 wideband RF choke L4 variable inductor, yellow L5 10 turns #22, 3/16" i.d. L6 5 turns #18, 1/4" i.d. L7 n/a L8 1 uH L9 1 uH SW1 10 position DIP switch Y1 5.12 MHz 8 pin DIP socket 28 pin DIP socket 4 standoffs 4-40 nuts 4-40 bolts SO-239 socket banana plugs banana sockets hookup wire RG174 RCA phone jack heat sink grounding lugs ferrite beads
Dipswitch settings for the 1/2 watt Free Radio Berkeley PLL transmitter ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0 = ON or switch closed (0 volts) 1 = OFF or switch open (5 volts)
Frequency Dip # 12345678910 --------- ------------------
88.1 1010100100 88.3 1111100100 88.5 0100010100 88.7 1001010100 88.9 1110010100
89.1 0011110100 89.3 1000110100 89.5 1101110100 89.7 0010001100 89.9 0111001100
90.1 1100001100 90.3 0001101100 90.5 0110101100 90.7 1011101100 90.9 0000011100
91.1 0101011100 91.3 1010011100 91.5 1111011100 91.7 0100111100 91.9 1001111100
92.1 1110111100 92.3 0011000010 92.5 1000000010 92.7 1101000010 92.9 0010100010
93.1 0111100010 93.3 1100100010 93.5 0001010010 93.7 0110010010 93.9 1011010010
94.1 0000110010 94.3 0101110010 94.5 1010110010 94.7 1111110010 94.9 0100001010
95.1 1001001010 95.3 1110001010 95.5 0011101010 95.7 1000101010 95.9 1101101010
96.1 0010011010 96.3 0111011010 96.5 1100011010 96.7 0001111010 96.9 0110111010
97.1 1011111010 97.3 0000000110 97.5 0101000110 97.7 1010000110 97.9 1111000110
98.1 0100100110 98.3 1001100110 98.5 1110100110 98.7 0011010110 98.9 1000010110
99.1 1101010110 99.3 0010110110 99.5 0111110110 99.7 1100110110 99.9 0001001110
100.1 0110001110 100.3 1011001110 100.5 0000101110 100.7 0101101110 100.9 1010101110
101.1 1111101110 101.3 0100011110 101.5 1001011110 101.7 1110011110 101.9 0011111110
102.1 1000111110 102.3 1101111110 102.5 0010000001 102.7 0111000001 102.9 1100000001
103.1 0001100001 103.3 0110100001 103.5 1011100001 103.7 0000010001 103.9 0101010001
104.1 1010010001 104.3 1111010001 104.5 0100110001 104.7 1001110001 104.9 1110110001
105.1 0011001001 105.3 1000001001 105.5 1101001001 105.7 0010101001 105.9 0111101001
106.1 1100101001 106.3 0001011001 106.5 0110011001 106.7 1011011001 106.9 0000111001
107.1 0101111001 107.3 1010111001 107.5 1111111001 107.7 0100000101 107.9 1001000101
