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1. Marts side 12 - 16

The first board, which includes an ATtiny2313, a 20 MHz oscillator and an R-2RDAC,
will be used to make a signal generator

Komponenter:
Resistors
R1,R2,R19 = 1kΩ
R5,R7,R9,R11,R13,R15,R17 = 10kΩ
R3,R4,R6,R8,R10,R12,R14,R16,R18 = 20kΩ
Capacitors
C1,C2 = 100nF 100V
C3 = 10nF
Semiconductors
D1 = BAT 85 (Schottky diode)
D2 = LED, green
IC1 = ATtiny2313-20PU, programmed Miscellaneous
S1 = pushbutton
K4,K5 = 2-pin pinheader, lead pitch 0.1’’  (2.54mm)
JP3 = 2-pin pinheader, lead pitch 0.1’’  (2.54mm) with jumper
JP1,JP2 = 3-pin pinheader, lead pitch 0.1’’  (2.54mm) with jumper
K1,K2,K3 = 2-way receptacle, right-angled
BOB = 4-way receptacle, right-angled
K6 = 10-way ISP boxheader
K7 =   6-way ISP boxheader
X1 = 20MHz quartz crystal (with 4 receptacles Harwin type H3153F01)
BOB-FT232R-001 = Elektor ‘BOB’ USB/TTL converter
(ready assembled and tested, # 110553-91)
Printed circuit board

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