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t march 2000 this document contains information on a preproduction product. specifications and information herein are subject to change with out notice. 3.28.00 )6 'xdo3//&orfn*hqhudwru,& $gydqfh,qirupdwlrq ,62 1.0 features dual phase-locked loop (pll) device with three out- put clock frequencies 3.3v supply voltage small circuit board footprint (8-pin 0.150 2 soic) custom frequency selections available - contact your local ami sales representative for more information figure 1: pin configuration 1 8 2 3 4 7 6 5 sel xin xout vdd clkb vss clkc clka FS6284 8-pin (0.150 2 ) soic 2.0 description the FS6284 is a monolithic cmos clock generator ic designed to minimize cost and component count in digital video/audio systems. all frequencies are ratiometrically derived from the crystal oscillator frequency. the locking of all the output fre- quencies together can eliminate unpredictable artifacts in video systems and reduce electromagnetic interference (emi) due to frequency harmonic stacking. table 1: crystal / output frequencies device sel f xin (mhz) clka (mhz) clkb (mhz) clkc (mhz) 0 81.000 (f xin * 198 / 35) FS6284-01 1 14.31818 14.31818 (f xin ) 48.000 (f xin * 352 / 105) 70.000 (f xin * 44 / 9) note: contact ami for custom pll frequencies figure 2: block diagram crystal osc. FS6284 xout xin clkc clka divider array pll pll clkb sel
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t march 2000 2 3.28.00 )6 'xdo3//&orfn*hqhudwru,& $gydqfh,qirupdwlrq ,62 table 2: pin descriptions key: ai = analog input; ao = analog output; di = digital input; di u = input with internal pull-up; di d = input with internal pull-down; dio = digital input/output; di-3 = three-level digital input, do = digital output; p = power/ground; # = active low pin pin type name description 1di u sel select input (see table 1) 2 ai xin crystal oscillator drive / external reference input 3 ao xout crystal oscillator feedback 4 p vdd power (+3.3 volts) 5 do clkc clock output c 6 p vss ground 7 do clkb clock output b 8 do clka clock output a 3.0 electrical specifications table 3: absolute maximum ratings stresses above those listed under absolute maximum ratings may cause permanent damage to the device. these conditions represent a stress rating only, and functional operation of the device at these or any other conditions above the operational limits noted in this specification is not implied. exposure to maximum rati ng conditions for extended conditions may affect device performance, functionality, and reliability. parameter symbol min. max. units supply voltage (v ss = ground) v dd v ss -0.5 7 v input voltage, dc v i v ss -0.5 v dd +0.5 v output voltage, dc v o v ss -0.5 v dd +0.5 v input clamp current, dc (v i < 0 or v i > v dd )i ik -50 50 ma output clamp current, dc (v i < 0 or v i > v dd )i ok -50 50 ma storage temperature range (non-condensing) t s -65 150 c ambient temperature range, under bias t a -55 125 c junction temperature t j 125 c lead temperature (soldering, 10s) 260 c input static discharge voltage protection (mil-std 883e, method 3015.7) 2 kv caution: electrostatic sensitive device permanent damage resulting in a loss of functionality or performance may occur if this device is subjected to a high-energy ele c- trostatic discharge. table 4: operating conditions parameter symbol conditions/description min. typ. max. units supply voltage v dd 3.3v 10% 3.0 3.3 3.6 v ambient operating temperature range t a 070c
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t march 2000 3 3.28.00 $gydqfh,qirupdwlrq )6 'xdo3//&orfn*hqhudwru,& ,62 4.0 package information table 5: 8-pin soic (0.150") package dimensions dimensions inches millimeters min. max. min. max. a 0.061 0.068 1.55 1.73 a1 0.004 0.0098 0.102 0.249 a2 0.055 0.061 1.40 1.55 b 0.013 0.019 0.33 0.49 c 0.0075 0.0098 0.191 0.249 d 0.189 0.196 4.80 4.98 e 0.150 0.157 3.81 3.99 e 0.050 bsc 1.27 bsc h 0.230 0.244 5.84 6.20 h 0.010 0.016 0.25 0.41 l 0.016 0.035 0.41 0.89 q 0 8 0 8 b d a 1 seating plane h e 8 1 all radii: 0.005" to 0.01" base plane a 2 e
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t a r c l q 7 typ. h x 45 table 6: 8-pin soic (0.150") package characteristics parameter symbol conditions/description typ. units thermal impedance, junction to free-air 8-pin 0.150 soic q ja air flow = 0 m/s 110 c/w corner lead 2.0 lead inductance, self l 11 center lead 1.6 nh lead inductance, mutual l 12 any lead to any adjacent lead 0.4 nh lead capacitance, bulk c 11 any lead to v ss 0.27 pf
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t march 2000 4 3.28.00 )6 'xdo3//&orfn*hqhudwru,& $gydqfh,qirupdwlrq ,62 5.0 ordering information ordering code device number package type operating temperature range shipping configuration 11640-xxx FS6284-01 8-pin (0.150) soic (small outline package) 0 c to 70 c (commercial) tape and reel 11640-xxx FS6284-01 8-pin (0.150) soic (small outline package) 0 c to 70 c (commercial) tubes copyright ? 2000 american microsystems, inc. devices sold by ami are covered by the warranty and patent indemnification provisions appearing in its terms of sale only. ami makes no warranty, express, statutory implied or by description, regarding the information set forth herein or regarding the fr eedom of the described devices from patent infringement. ami makes no warranty of merchantability or fitness for any purposes. ami re - serves the right to discontinue production and change specifications and prices at any time and without notice. amis products are intended for use in commercial applications. applications requiring extended temperature range, unusual environmental require- ments, or high reliability applications, such as military, medical life-support or life-sustaining equipment, are specifically not recom- mended without additional processing by ami for such applications. american microsystems, inc., 2300 buckskin rd., pocatello, id 83201, (208) 233-4690, fax (208) 234-6796, www address: http://www.amis.com e-mail: tgp@amis.com
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