鈥?/div>
Frequency Range 46.875kHz-24.00MHz
Low current consumption (CMOS IC structure)
Starting time < 1.5mS
High noise immunity
No adjustment needed once frequency selected
Frequency accurate to 鹵 100 ppm
The PROG-MOD uses a super small CMOS crystal clock
oscillator and fits in a 14 pin DIP package equipped with a
programmable frequency divider. 7 different oscillators are
supplied and each frequency can be divided by
1
/
2
to
1
/
2 8
to give 64 possible clock speeds selectable at the users
choice.
PROG-MOD Standard Frequencies
fo
MHz
12.00
14.31818
14.7456
16.00
19.6608
20.00
24.00
fo/2
MHz
6.00
7.15909
7.3728
8.00
9.8304
10.00
12.00
fo/4
fo/8
MHz
MHz
3.00
1.5
3.579545 1.789772
3.6864
1.8432
4.00
2.00
4.9152
2.4576
5.00
2.50
6.00
3.00
fo/16
kHz
750
894.88
921.6
1000.0
1128.8
1250.0
1500.0
fo/32
kHz
375
447.44
460.8
500.0
614.4
625.0
750.0
fo/64
kHz
187.5
223.72
230.4
250.0
307.2
312.5
375.0
fo/128
kHz
93.75
111.875
115.2
125.0
153.6
156.25
187.5
fo/256
kHz
46.875
55.9375
57.6
62.5
76.8
78.125
93.75
Frequency Divider Selection Links
The frequency required is selected by means of
links LK1 located on the module.
Changing The Crystal IC
To ensure proper operation of the PROG-MOD oscillator
the crystal IC must be inserted in the correct position. Pin
1 of the crystal IC must be inserted into the Pin 1 position
of the 14 pin DIP package marked with a yellow triangle
and make sure all pins are properly fitted into the 8 pin
socket.
Frequency
fo
fo/2
fo/4
fo/8
fo/16
fo/32
fo/64
fo/128
fo/256
A
1-2
2-3
2-3
2-3
2-3
2-3
2-3
2-3
2-3
B
1-2
2-3
1-2
2-3
1-2
2-3
1-2
2-3
1-2
C
1-2
2-3
2-3
1-2
1-2
2-3
2-3
1-2
1-2
D
1-2
2-3
2-3
2-3
2-3
1-2
1-2
1-2
1-2
WARNING
The crystal oscillator employs a CMOS IC integrated with
a protection circuit for static electricity, please handle only
in an anti-static environment.
1
A
B
2
3
14 Pin
DIP
Pin1
1
8 Pin
DIP
8
U1
14 Pin
DIP
Pin14
PROG-MOD Package Contents
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
1pc PROG-MOD Assembly
1pc 32 kHz Oscillator Module
7pcs Crystal Oscillator ICs
(12.00,14.31818,14.7456,16.00,19.6608,20.00,24.00 MHz)
4pcs Header links for LK1
C
LK1 1
D
A
B
C
D
LK1
2
3
Part Number
PROG-MOD
For more information contact :-
Description
Programmable Oscillator Module
R. F. Solutions Ltd.,
Unit 21, Cliffe Industrial Estate, South Street,
Lewes, E. Sussex. BN8 6JL.
England.
Tel +44 (0)1273 898 000
Fax +44 (0)1273 480 661
Email sales@rfsolutions.co.uk
Internet http://www.rfsolutions.co.uk
DS000045 V1.2.DOC
漏1998
REG No 277 4001, ENGLAND.
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