kss-exo-3 series dimensions (mm) pin connections 1.f outputs the original frequency (fo) of the internal quartz crystal. 2.d outputs the frequency of programmed dividing ratio (fo/2 n ). 3.st possible to be oscillated when set to high level and stopped in oscillation when set to low level. when this function is not needed, be sure to set the standby pin to the high level. 4. gnd 5.a, 6.b & 7.c used to program the dividing ratio for the original frequency. 8.v dd features ? frequency range 46.875khz-20mhz ? supply voltage range 3 to 6v ? starting time <1.5ms ? ultrasonic cleaning is available ? suitable for various automatic assembly machines ? low current consumption (cmos ic structure) ? standby function included ? high in noise margin ? usable with no adjustment ? most frequencies held ex-stock ? smd version, see seiko epson description the kss-exo-3 is a super-small cmos crystal clock oscillator in an 8-pin dip package equipped with a programmable frequency divider. division 1 / 2 to 1 / 2 8 simultaneously with the original frequency can be achieved at the users freedom with this revolutionary device. composed of an at-cut oscillator and a specially designed cmos ic divider, this device realises a wide range of supply voltage, lower power consumption, high speed operation and provides a standby function to meet most of the users needs. this extraordinary device can utilise various pick & place machinery, replacing traditional oscillators. standard frequencies ex-stock (mhz) crystal oscillators - kss kinseki cmos programmable frequency divider tel: +44 1635 528520 fax: +44 1635 528443 exo-3c/12.00 exo-3c/12.288 exo-3c/12.80 exo-3c/14.31818 exo-3c/14.7456 exo-3c/16.00 exo-3c/16.384 exo-3c/17.73447 exo-3c/19.6608 exo-3c/20.00 exo-3c/24.00
tel: +44 1635 528520 fax: +44 1635 528443 crystal oscillators cmo-s programmable frequency divider frequency accuracy ? act-exo-3c = 100ppm ? act-exo-3d = 500ppm ? act-exo-3e = 1000ppm handling notes since this kss-exo type crystal clock oscillator employs a cmos ic integrated with a protection circuit for static electricity, please handle only in an anti static environment. no by-pass capacitor is inserted between the power supply stage (v dd -gnd). to protect from overvoltage and overcurrent due to power supply noise, provide a capacitor (above 0.01f) as close as possible to the v dd -gnd pin. if v dd is applied to pin 4, a gnd pin, mistaken as pin 8 (v dd ), ot an inverse current is applied to the device, it casuses an internal destruction or no oscillation in some cases. to avoid this, strict care should be taken over correct pin connection. kss-exo-3 series absolute maximum ratings parameter symbol specification power supply (v) v dd -0.5 to +7.0v input voltage (v) v i -0.3 to v dd +0.3v output current (ma) i 0 25ma storage temp. range (c) t stg -55 to +125c operating conditions parameter symbol specification min. typ. max. supply voltage (v) v dd 3.0v 5.0v 6.0v operating temp. range t opr -10c 25c 70c characteristics (v dd =5.0v, c l =50pf, ta = 25c) parameter symbol condition min. typ. max. h input voltage (v) v ih 3.6v l input voltage (v) v il 0.8v h output voltage (v) v oh i out =-20a 4.75v i out =4ma 4.5v l output voltage (v) v ol i out =-20a i out =4ma output rise time (sec.) t tlh 10ns 15ns output fall time (sec.) t tlh 10ns 15ns input leakage current (a) i i v in = v dd or gnd 1.0a v dd set up time t vu 1.5ms st set up time (sec.) t stu 1.5ms duty ratio (%) t1/t2 40/60% 60/40% power supply current i dd 20.0ma standby current i st 10a dividing ratio
crystal oscillators cmos programmable frequency divider tel: +44 1635 528520 fax: +44 1635 528443 kss-ex0-3 series standard frequencies ?0 (original frequency) ?0/2n (divided waveform) 1 / 2 01 / 2 1 / 2 21 / 2 31 / 2 41 / 2 51 / 2 61 / 2 71 / 2 8 (mhz) (mhz) (mhz) (mhz) (khz) (khz) (khz) (khz) (khz) 12.00 6.00 3.00 1.50 750.00 375.00 187.50 93.75 46.875 12.288 6.144 3.072 1.536 768.00 384.00 192.00 96.00 48.00 12.80 6.40 3.20 1.60 800.00 400.00 200.00 100.00 50.00 14.31818 7.15909 3.579545 1.789772 894.88 447.44 223.72 111.875 55.9375 14.7456 7.3728 3.6864 1.8432 921.60 460.80 230.40 115.20 57.60 16.00 8.00 4.00 2.00 1000.00 500.00 250.00 125.00 62.50 17.734476 8.867238 4.433619 2.216809 1108.40 554.20 227.10 138.55 69.275 18.432 9.216 4.608 2.304 1152.00 576.00 228.00 144.00 72.00 19.6608 9.8304 4.9152 2.4576 1228.80 614.40 307.20 153.60 76.80 20.00 10.00 5.00 2.50 1250.00 625.00 312.50 156.25 78.125 setting of dividing output input output select st f d c b a (original frequency) (divided waveform) xx xl l l l l l h fo/2 1 l l h h fo/2 2 l h l h fo/2 3 lhhh f 0 clock fo/2 4 h l l h fo/2 5 h l h h fo/2 6 h h l h fo/2 7 h h h h fo/2 8
tel: +44 1635 528520 fax: +44 1635 528443 crystal oscillators cmos programmable frequency divider kss-ex0-3 series environmental and mechanical characteristics parameter description shock 100g, 1/2 sine wave, 0.35ms shock pulse, one each to three directions. vibration (1) 10 to 55hz, amplitude 1.5mm one hour each to three directions (2) 50 to 2000hz, acceleration 20g one hour each to three directions. solder heat resistance 260c, dip to 1mm from the bottom of mold in soldering tank for 10 secs. solvent resistance free from problems of appearance and sealing after dipping into fronsolve for 90 secs.
|
