cf5015 series nippon precision circuits inc.? 2.5v operation fundamental frequency crystal oscillator module ics overview the cf5015 series are 2.5v operation crystal oscillator ics. they are available for frequencies up to 60mhz. they employ a process optimized for 2.5v operation, resulting in both improved operating frequency and sta- ble operation. they feature a large reduction in chip size, when compared to existing devices, making possible the construction of small-sized crystal oscillators. features 2.25 to 2.75v operating supply voltage range up to 60mhz oscillation frequency range ?40 to 85 c operating temperature range oscillation capacitors built-in ? g = 18pf, c d = 18pf inverter ampli?r feedback resistor built-in standby function high impedance in standby mode, oscillator stops low standby current power-save pull-up resistor built-in f o , f o /2, f o /4, f o /8, or f o /16 output frequency, determined by internal connection cmos output duty level (1/2vdd) molybdenum-gate cmos process chip form (cf5015al ) series configuration ordering information version recommended operating frequency range 1 [mhz] 1. the recommended operating frequency is a yardstick value derived from the crystal used for npc characteristics authenticatio n. how- ever, the oscillator frequency band is not guaranteed. speci?ally, the characteristics can vary greatly due to crystal charact eristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated. built-in capacitance [pf] output frequency standby function c l = 15pf c l = 30pf c g c d cf5015al1 4 to 60 4 to 50 18 18 f o ye s cf5015al2 f o /2 yes cf5015al3 f o /4 yes cf5015al4 f o /8 yes cf5015al5 f o /16 yes device package cf5015al ? chip form
cf5015 series nippon precision circuits inc.? pad layout (unit: m) pin description and pad dimensions block diagram chip size: 0.72 0.68mm chip thickness: 220 ?30? pad size: 90? chip base: v dd level name i/o description pad dimensions [m] xy inhn i output state control input. high impedance when low (oscillator stops). power-saving pull-up resistor built-in. 151 277 xt i ampli?r input crystal connection pins. crystal is connected between xt and xtn. 238 131 xtn o ampli?r output 512 131 vss ground 588 345 q o output. output frequency (f o , f o /2, f o /4, f o /8, f o /16) determined by internal connection 588 548 vdd supply voltage 131 548 inhn = low active q vdd xtn vss (0,0) (720,680) x y ha 5015 inhn xt npc xt vss vdd q c g c d r f xtn inhn 1/2 1/2 1/2 1/2
cf5015 series nippon precision circuits inc.? specifications absolute maximum ratings v ss = 0v recommended operating conditions v ss = 0v parameter symbol condition rating unit supply voltage range v dd ? 0.5 to +7.0 v input voltage range v in ? 0.5 to v dd + 0.5 v output voltage range v out ? 0.5 to v dd + 0.5 v operating temperature range t opr ? 40 to +85 c storage temperature range t stg ? 65 to +150 c output current i out 12 ma parameter symbol condition rating unit supply voltage v dd 2.25 to 2.75 v input voltage v in v ss to v dd v operating temperature t opr ? 40 to +85 c operating frequency f osc c l 15pf 4 to 60 mhz c l 30pf 4 to 50 mhz
cf5015 series nippon precision circuits inc.? electrical characteristics v dd = 2.25 to 2.75v, v ss = 0v, ta = ? 40 to +85 c unless otherwise noted. parameter symbol condition rating unit min typ max high-level output voltage v oh q: measurement cct 1, v dd = 2.25v, i oh = 4ma 1.65 1.95 v low-level output voltage v ol q: measurement cct 1, v dd = 2.25v, i ol = 4ma 0.3 0.4 v high-level input voltage v ih inhn 0.7v dd v low-level input voltage v il inhn 0.3v dd v output leakage current i z q: measurement cct 2, inhn = low v oh = v dd 10 ? v ol = v ss 10 ? current consumption i dd measurement cct 3, load cct 1, inhn = open, c l = 15pf, f = 60mhz cf5015al1 5.5 11 ma cf5015al2 4 8 ma cf5015al3 3 6 ma cf5015al4 2.5 5 ma cf5015al5 2 4 ma standby current i st measurement cct 3, inhn = low 3 ? inhn pull-up resistance r up1 measurement cct 4 2 6 12 m ? r up2 20 100 200 k ? feedback resistance r f measurement cct 5 100 300 600 k ? built-in capacitance c g design value. a monitor pattern on a wafer is tested. 15.3 18 20.7 pf c d 15.3 18 20.7 pf
cf5015 series nippon precision circuits inc.? switching characteristics v dd = 2.25 to 2.75v, v ss = 0v, ta = ? 40 to +85 c unless otherwise noted. current consumption and output waveform with npc s standard crystal functional description standby function when inhn goes low, the oscillator stops and the oscillator output on q becomes high impedance. power-save pull-up resistance the inhn pull-up resistance changes in response to the input level (high or low). when inhn goes low (standby state), the pull-up resistance becomes large to reduce the current consumption during standby. parameter symbol condition rating unit min typ max output rise time t r1 measurement cct 3, load cct 1, 0.1v dd to 0.9v dd c l = 15pf 3 6 ns t r2 c l = 30pf 5 10 output fall time t f1 measurement cct 3, load cct 1, 0.9v dd to 0.1v dd c l = 15pf 3 6 ns t f2 c l = 30pf 5 10 output duty cycle 1 1. the duty cycle characteristic is checked the sample chips of each production lot. duty1 measurement cct 3, load cct 1, v dd = 2.5v, ta = 25 c c l = 15pf f = 60mhz 45?5% duty2 c l = 30pf f = 50mhz 45?5% output disable delay time 2 2. oscillator stop function is built-in. when inhn goes low, normal output stops. when inhn goes high, normal output is not res umed until after the oscillator start-up time has elapsed. t plz measurement cct 6, load cct 1, v dd = 2.5v, ta = 25 c, c l = 15pf 100 ns output enable delay time 2 t pzl 100 ns * the 60mhz crystal data is con?ential. inhn q oscillator high (or open) any f o , f o /2, f o /4, f o /8 or f o /16 output frequency normal operation low high impedance stopped f [mhz] r [ ? ] l [mh] ca [ff] cb [pf] 50 16.12 6.88 1.48 1.18 60* ???? l ca r cb
cf5015 series nippon precision circuits inc.? measurement circuits measurement cct 1 2vp-p, 10mhz sine wave input signal c1: 0.001 f r1: 50 ? r2: 413 ? r3: 462 ? measurement cct 2 measurement cct 3 signal generator vdd vss xt q r1 r2 r3 v oh 0v q output v dd v dd v ol q output 0v when measuring v ol when measuring v oh c1 xtn inhn i z v a i z vdd vss xt q xtn inhn v oh v ol x'tal i dd i st a vdd vss xt q xtn inhn measurement cct 4 measurement cct 5 measurement cct 6 2vp-p, 10mhz sine wave input signal c1: 0.001 f r1: 50 ? load cct 1 i pr a v v pr v dd i pr (v pr = v ss ) r up2 = i pr (v pr = 0.7v dd ) v dd v pr r up1 = vdd vss xt q xtn inhn i rf r f = v dd i rf a vdd vss xt q xtn inhn signal generator vdd vss xt q r1 c1 xtn inhn q output c l (including probe capacitance)
cf5015 series nippon precision circuits inc.? switching time measurement waveform output duty level output duty cycle output enable/disable delay when the device is in standby, the oscillator stops. when standby is released, the oscillator starts and stable oscillator output occurs after a short delay. 0.9v dd 0.1v dd 0.9v dd 0.1v dd t r t f q output duty measurement voltage (0.5v dd ) t w duty measurement voltage ( 0.5v dd ) q output t w t duty= t w / t 100 (%) q output inhn v ih v il t plz t pzl inhn input waveform t r = t f 10ns
cf5015 series nippon precision circuits inc.? nc0206ae 2003.02 please pay your attention to the following points at time of using the products shown in this document. the products shown in this document (hereinafter ?roducts? are not intended to be used for the apparatus that exerts harmful in?ence on human lives due to the defects, failure or malfunction of the products. customers are requested to obtain prior written agreeme nt for such use from nippon precision circuits inc. (hereinafter ?pc?. customers shall be solely responsible for, and indemnify and hold npc free and harmless from, any and all claims, damages, losses, expenses or lawsuits, due to such use without such agreement. npc reserves the right to change the speci?ations of the products in order to improve the characteristic or reliability thereof. npc makes no claim or warranty that the contents described in this document dose not infringe any intellectual property right or other similar right owned by third parties. therefore, npc shall not be responsible for such problems, even if the use is in accordance with the descriptions prov ided in this document. any descriptions including applications, circuits, and the parameters of the products in this document are for refere nce to use the products, and shall not be guaranteed free from defect, inapplicability to the design for the mass-production products without further testing or modi?ation. customers are requested not to export or re-export, directly or indirectly, the products to any country or any entity not in compliance with or in violation of the national export administration laws, treaties, orders and regulations. customers are req uested appropriately take steps to obtain required permissions or approvals from appropriate government agencies. nippon precision circuits inc. 4-3, fukuzumi 2-chome, koto-ku, tokyo 135-8430, japan telephone: +81-3-3642-6661 facsimile: +81-3-3642-6698 http://www.npc.co.jp/ email: sales @ npc.co.jp
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