1 2 3 4

A

B

C

D

4321

D

C

B

A

1

2

23

12

24VCC

GND

EL

Input Output

KaKbKc

J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 J11 J12 J13 J14 J15 J16

141311

3 4 5 6 22 21 20 19 18 17 16 15 10 9 8 7

U2HEF4059B

Rs11

Q4

Q6

Q12

9

12

CextQ5

RextQ7

3

15

54

13

2

7

614

Q10

Reset

Q8

Q13Q14

10

1

Q9

8

16VCC

GND

U1M74HC4060B1

R4

4M7

C168p

CV115-70p

XTAL24 MHz

+5

+5C2

0.1u

C3

0.1u

TP

24 MHz

COM

INOUT

U478L05

+

C547u

+C4

22uC6

0.1u

+5

123456

M1

D11N4001

Enable CountNo Count

R3

22k

+8...12V

Output 100 or 1000 Hz (5 Vpp)Enable Input (0 or 5 V)GND

375 kHz

12

3 M2

Mode

R247k

R147k

+5+5/10/1

Author:

Project:

Size: DWG no. Rev.: Scale: Sheet:

Year:

Note:

Valter Narcisi - San Benedetto del Tronto (AP)

Base dei Tempi - 1 / 10 / 100 / 1000 Hz 2013

— 1 1 1:1 1 of 1

www.narcisivalter.it - info@narcisivalter.it

Io max = 15 mA

Rst2

2D1

15

3C1B1

10

46 5A1

1

En2

9

7

Ck1

En1

Ck2

Rst1

D2C2B2A2111214 13

8

16

U3CD4518

Output 10 or 100 Hz (5 Vpp)Output 1 or 10 Hz (5 Vpp)

C40.1u

100 or 1000 Hz

10 or 100 Hz1 or 10 Hz

Select

Mode Select:1-22-3

= 10 - 100 - 1000 Hz = 1 - 10 - 100 Hz

http://www.narcisivalter.it/progetti/timebase-base-dei-tempi.html

http://www.narcisivalter.it/progetti/timebase-base-dei-tempi.html