ICEPIC PROG-MOD OSCILLATOR • • • • • • 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 1 1 8 supplied and each frequency can be divided by / 2 to / 2 to give 64 possible clock speeds selectable at the users choice. 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 ± 100 ppm 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 Frequency Divider Selection Links B 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 fo/256 kHz 46.875 55.9375 57.6 62.5 76.8 78.125 93.75 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 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. 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 2 3 14 Pin DIP Pin1 1 8 8 Pin DIP A B PROG-MOD Package Contents Part Number PROG-MOD D A B C LK1 Description Programmable Oscillator Module For more information contact :- 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 [email protected] Internet http://www.rfsolutions.co.uk DS045_1 Oct ’00 D 3 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 2 • C LK1 1 • • • 14 Pin DIP Pin14 U1 A 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 fo/128 kHz 93.75 111.875 115.2 125.0 153.6 156.25 187.5 Changing The Crystal IC The frequency required is selected by means of links LK1 located on the module. Frequency fo fo/2 fo/4 fo/8 fo/16 fo/32 fo/64 fo/128 fo/256 fo/64 kHz 187.5 223.72 230.4 250.0 307.2 312.5 375.0 2000 REG No 277 4001, ENGLAND. Page 1