crystal oscillator - xo qen 79 & qen 92-ah/bh 3-13 vol. 2 sales offices: visit our web site at http://www.temex.net description the qen 79 series is a true hybrid construction with chip and wire bonding to a ceramic substrate for high reliability and small size. the crystal resonator is mounted on a 3 points supporting pad bonded to the ceramic substrate. they are designed to operate at extended temperature up to -55 c to +125 c and available to 100 mhz. this series is designed to withstand tough mechanical environment and class b screening if applicable. it s presented in a j-lead version and both supply voltage (5 v and 3.3 v). it offers an enable/disable option. an alternative is available in a leadless version, the qen 92, which has the same design but offers a tristate function in standard. consult your local sales office to know available solutions. qen 79/92-ah qen 79/92-bh tristate option 5 v supply voltage 3.3 v supply voltage on pin 1 tristate on pin 1 package 92 package 79 ?5 ppm ?0 ppm ?5 ppm ?0 ppm 1.5 mhz - 30 mhz yes yes yes yes 30 mhz - 80 mhz yes yes yes yes 80 mhz - 100 mhz yes yes frequency range 1.75 mhz to 100 mhz applications cellular base stations pcs base stations synthesizers test equipment portable instrumentation and avionics features temperature ranges: up to -55 c to +125 c frequency stability: 15 to 100 ppm supply voltage: +5 v or +3.3 v current consumption: @ (5 v): 25 to 40 ma @ (3.3 v): 12 to 20 ma load: @ (5 v): 50pf/10ttl-gates @ (3.3 v): 15 pf option duty cycle: 50/50 5 % option: enable/disable on pin 1 package 79 tristate output: package 92 option: screening b ageing (45?/1 st year): 5 ppm industrial & military smd xo minimum ordering information requirement (see t able 1 for available combinations) (see page 3-1 7 and 3-1 8 for package drawing) example: qen 79 - ahr 50 mhz dt50 sb/ t package 79 = j-leads 92 = leadless ? * supply voltage ah = 5 v bh = 3.3 v option r = 50/50 5% i = tristate * temperature range dt = -40 c ~ +85 c ay = -55 c ~ +125 c frequency stability 25 ppm 50 ppm 100 ppm screening option: sb tinned pins: t ? note: 1. options with the same marker may not be combined with each other. 2. frequency stability inclusive of 25 c calibration, temperature, vcc and load change. / table 1: other temperature ranges and stabilities available attention: should pin 1 not be used, please always tie to vcc ??on pin 1 = high z on pin 3 ??on pin 1 = enable on pin 3
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