cf5005b series nippon precision circuits inc.? high-frequency crystal oscillator module ics overview the cf5005b series are high-frequency crystal oscillator module ics. they are comprised of an oscillator cir- cuit and output buffer optimized for operation at 125 to 165mhz. the crystal oscillator circuit has a built-in thin-?m feedback resistor with good temperature characteristics and built-in capacitors with excellent fre- quency response, making possible a stable 3rd-harmonic oscillator with only the addition of a crystal element. features 3.0 to 3.6v operating supply voltage range 125 to 165mhz recommended operating fre- quency range inverter ampli?r feedback resistor built-in oscillator capacitors c g , c d built-in output three-state function (high impedance in standby mode, oscillator stops) f o output frequency (oscillator frequency) 8ma output drive capability (v dd = 3.0v) cmos output duty level chip form (cf5005b ) series configuration ordering information version recommended operating frequency 1 [mhz] 1. the recommended operating frequency is a yardstick value derived from the crystal used for npc characteristics authenticatio n. however, the oscillator frequency band is not guaranteed. speci?ally, when used at high frequencies, the characteristics can vary greatly d ue to crystal char- acteristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated. gm ratio built-in capacitance [pf] r f [k ? ] c g c d cf5005bla 125 to 150 1.0 1 6 2.2 cf5005blb 140 to 165 1.0 1 3 2.2 device package cf5005b ? chip form
cf5005b series nippon precision circuits inc.? pad layout (unit: m) pin description and pad dimensions block diagram chip size: 0.92 1.31 mm chip thickness: 300 ?30 ? chip base: v dd level name i/o description pad dimensions [m] xy inhn i output state control input. oscillator stops when low. pull-up resistor built in 195 212 xt i ampli?r input. crystal oscillator connection pins. crystal oscillator connected between xt and xtn 385 212 xtn o ampli?r output. 575 212 vss ground 766 212 q o output. output frequency (f o ). high impedance in standby mode 765 1152 vdd supply voltage 162 1152 substrate potential: v dd q vdd xt vss (0,0) (920,1310) x y inhn xtn ha5005bl xt vss vdd q c g c d r f 1 xtn inhn r f 2 c f
cf5005b series nippon precision circuits inc.? specifications absolute maximum ratings v ss = 0v recommended operating conditions v ss = 0v, f 165mhz, c l 15pf unless otherwise noted. electrical characteristics v dd = 3.0 to 3.6v, v ss = 0v, ta = ? 20 to 80 c unless otherwise noted. 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 25 ma parameter symbol condition rating unit min typ max operating supply voltage v dd 3.0 3.6 v input voltage v in v ss ? dd v operating temperature t opr ? 20 80 c parameter symbol condition rating unit min typ max high-level output voltage v oh q: measurement cct 1, v dd = 3.0v, i oh = 8ma 2.5 2.7 v low-level output voltage v ol q: measurement cct 2, v dd = 3.0v, i ol = 8ma 0.3 0.4 v output leakage current i z q: measurement cct 2, inhn = low, v dd = 3.6v v oh = v dd 10 ? v ol = v ss 10 high-level input voltage v ih inhn 0.7v dd v low-level input voltage v il inhn 0.3v dd v current consumption i dd measurement cct 3, load cct 1, inhn = open, c l = 15pf f = 133mhz 30 65 ma f = 156mhz 35 80 standby current i st measurement cct 3, inhn = low 10 a inhn pull-up resistance r up1 measurement cct 4 inhn = v ss 0.4 4 m ? r up2 inhn = 0.7v dd 50 150 k ? ac feedback resistance r f1 design value, determined by the internal wafer pattern 1.76 2.2 2.64 k ? dc feedback resistance r f2 measurement cct 5 50 150 k ? ac feedback capacitance c f design value, determined by the internal wafer pattern 9.3 10 10.7 pf built-in capacitance c g design value, determined by the internal wafer pattern cf5005bla 0.93 1 1.07 pf cf5005blb 0.93 1 1.07 c d design value, determined by the internal wafer pattern cf5005bla 5.58 6 6.42 pf cf5005blb 2.79 3 3.21
cf5005b series nippon precision circuits inc.? switching characteristics v dd = 3.0 to 3.6v, v ss = 0v, ta = ? 20 to 80 c unless otherwise noted. functional description standby function the oscillator stops when inhn goes low. when the oscillator stops, the oscillator output on q goes high impedance. parameter symbol condition rating unit min typ max output rise time t r measurement cct 3, load cct 1, 0.1v dd to 0.9v dd , c l = 15pf 1.5 2.5 ns output fall time t f measurement cct 3, load cct 1, 0.9v dd to 0.1v dd , c l = 15pf 1.5 2.5 ns output duty cycle 1 1. monitored in sample lots. duty measurement cct 3, load cct 1, ta = 25 c, v dd = 3.3v, c l = 15pf, f 165mhz 40?0% 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, ta = 25 c, v dd = 3.0v, c l 15pf 100 ns output enable delay time 2 t pzl measurement cct 6, load cct 1, ta = 25 c, v dd = 3.0v, c l 15pf 100 ns inhn q oscillator high (or open) f o output frequency normal operation low high impedance stopped
cf5005b series nippon precision circuits inc.? measurement circuits measurement cct 1 2.5v p ? p , 10mhz sine wave input signal c1 : 0.001 f r1 : 50 ? r2 : 312.5 ? measurement cct 4 measurement cct 2 measurement cct 5 measurement cct 3 measurement cct 6 r1 : 50 ? signal generator vdd vss xt q r1 r2 c1 v oh 0v q output vdd vss i pr inhn v pr r up1 = v dd i pr (v pr = v ss ) r up2 = i pr (v pr = 0.7v dd ) v dd 0.7v dd a v vdd vss q v ol v a i ol , i z i z inhn vdd vss i rf r f2 = xt v dd i rf xtn a vdd vss xt q x'tal xtn inhn i dd i st a signal generator vss xt q r1 vdd inhn
cf5005b series nippon precision circuits inc.? load cct 1 switching time measurement waveform tr, tf, duty output duty cycle output enable/disable delay the following gure shows the oscillator timing during normal operation. note that 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. c l = 15pf q output c l (including probe capacitance) 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
cf5005b series nippon precision circuits inc.? nc0109ae 2001.12 nippon precision circuits inc. reserves the right to make changes to the products described in this data sheet in order to improve the design or performance and to supply the best possible products. nippon precision circuits inc. assumes no responsib ility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits are free from patent infringement. applications for any devices shown in this data sheet are for illustration only and nippon p recision circuits inc. makes no claim or warranty that such applications will be suitable for the use speci?d without further testing o r modi?ation. the products described in this data sheet are not intended to use for the apparatus which in?ence human lives due to the failu re or malfunction of the products. customers are requested to comply with applicable laws and regulations in effect now and hereinaft er, including compliance with export controls on the distribution or dissemination of the products. customers shall not export, dir ectly or indirectly, any products without ?st obtaining required licenses and 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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