crystal oscillator - xo qen 49/55-bh/ch 3-15 vol. 2 sales offices: visit our web site at http://www.temex.net full military dil xo option option qen 49/55-bh qen 49/55-ch enable / disable on pin 1 tri-state on pin 1 version bh version ch ?5 ppm ?0 ppm ?5 ppm ?0 ppm ? on pin 1 = ? on pin 1 = 3.5 khz - 14 mhz yes yes disable on pin 8 enable on pin 8 14 mhz - 40 mhz yes yes yes yes ? on pin 1 = ? on pin 1 = 40 mhz - 70 mhz yes yes enable on pin 8 high z on pin 8 frequency range 3.5 khz to 70 mhz applications test equipment military airborne space applications features temperature ranges: up to -55 c to +125 c frequency stability: ?5 to 100 ppm supply voltage: +5 v current consumption: 10 to 50 ma load (bh version): 25pf/3ttl-gates load (ch version): 15pf-25pf/10ttl-gates option duty cycle: (bh version up to 14 mhz): 50/50 5 % (bh/ch version from 14 mhz): 50/50 10 % option enable/disable: up to 14 mhz: version bh option tristate output: version ch option external trimmer: 3 to 20 pf up to 30 mhz on pin 1 option screening: b or s ageing (45?/1 st year) : 5 ppm attention: should pin 1 not be used, please always tie to vcc minimum ordering information requirement (see t able 1 for available combinations) (see page 3-1 9 for package drawing) example: qen 55 - bhr 16 mhz ay50 sb / t package 55 = dil 4 pins 49 = dil 14 pins option r = 50/50 10 % (or 5 %) i = enable/disable * j = tristate * t = trimmer * temperature range dt = -40 c ~ +85 c ay = -55 c ~ +125 c frequency stability 25 ppm 50 ppm 100 ppm screening option: sb / ss 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 stability available these high performance dil clock oscillators are designed for high vibration and extended temperature range up to -55 c to +125 c. the qen55-bh/ch utilize hcmos active circuit technology up to 40 mhz and an acmos technology up to 70 mhz. the crystal resonator is mounted on 3 points on a true hybrid alumina substrate with gold printed circuit path and is well suited for military and avionics applications. the same perfor- mances are presented for higher environmental severity in a 14 pins dil package under the designation qen49-bh/ch. in the overlapping range between 14 mhz and 40 mhz, the choice depends on the other available options such as duty cycle tolerance and the tristate output. lead time between input signal and output reaction 20 ns
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