for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 3 - 4 dielectric resonator oscillator 3 dielectric resonator oscillator module, 8.0 - 8.3 ghz v04.1109 general description features functional diagram the hmc-c200 is a high performance dielectric resonator oscillator (dro) that incorporates hittites ultra-low phase noise technology and provides -122 dbc/hz ssb phase noise at 10 khz offset. the output buffer also provides 14.5 dbm of output power. internal temperature compensation allows this dro to operate over a temperature range of -40c to + 85c with a frequency drift of only 2ppm/c. the vtune port accepts an analog tuning voltage from +7 to +12v and provides a range of 1 mhz from the center frequency. the dro is packaged in a small, moisture sealed 1.5x1.5 (36 x 36 mm) module with a eld replaceable sma connector. the hmc-c200 can be used as a drop-in module if the sma connector is not used. tuning frequency: 8.0 - 8.3 ghz low ssb phase noise: -122 dbc/hz @ 10 khz offset single positive supply: +6 to +15v @ 116 ma internal voltage regulator internal buffer ampli er high output power: +14.5 dbm -40c to + 85c operating temperature typical applications the hmc-c200 dro module is ideal for: ? test & measurement equipment ? lab instrumentation ? industrial / medical equipment ? military, ew, ecm & communications electrical speci cations, t a = +25 c, frequency = 8.2 ghz, vdc = +6.5v parameter min. typ. max. units frequency range 8.0 8.2 8.3 ghz frequency accuracy 250 khz power output, center frequency 12 13.5 dbm ssb phase noise @ 1 khz offset, center frequency -95 dbc/hz ssb phase noise @ 10 khz offset, center frequency -117 -122 dbc/hz ssb phase noise @ 100 khz offset, center frequency -140 dbc/hz ssb phase noise @ 1 mhz offset, center frequency -150 dbc/hz tune voltage (vt) 7 9 12 v electric tuning range 1 mhz 2nd harmonic (2fo) -28 dbc 3rd harmonic (3fo) -35 dbc hmc-c200
for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 3 - 5 dielectric resonator oscillator 3 phase noise vs. temperature @ 8.2 ghz output power vs. temperature @ 8.2 ghz vdc current vs. temperature @ 8.2 ghz output frequency vs. temperature hmc-c200 v03.1009 dielectric resonator oscillator module, 8.0 - 8.3 ghz parameter min. typ. max. units frequency pushing 5khz/v frequency pulling (into 2.0:1 vswr) 5 khz pp output return loss 12 db frequency drift rate (temperature) 2 ppm/c voltage supply (vdc) 6 15 v supply current @ vdc = +6.5v 116 m a frequency drift vs. time @ 25c 1ppm/year electrical speci cations (continued) -180 -160 -140 -120 -100 -80 -60 -40 -20 0 10 2 10 3 10 4 10 5 10 6 + 25 c - 40 c + 85 c ssb phase noise (dbc/hz) offset frequency (hz) 10 12 14 16 18 20 -60 -40 -20 0 20 40 60 80 100 dc current (ma) temperature (c) 10 12 14 16 18 20 -60 -40 -20 0 20 40 60 80 100 dc current (ma) temperature (c) 8.1990 8.1995 8.2000 8.2005 8.201 -60 -40 -20 0 20 40 60 80 100 frequency (ghz) temperature (c)
for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 3 - 6 dielectric resonator oscillator 3 hmc-c200 v03.1009 dielectric resonator oscillator module, 8.0 - 8.3 ghz vibration sensitivity frequency & power vs. tuning voltage absolute maximum ratings vdc +15v vt 0 to +15v storage temperature -65 to +150 c operating temperature -40 to +85 c pin number function description interface schematic 1 rfout rf output (ac coupled) uses a female sma connector. 2vt control voltage and modulation input uses a female sma connector. modulation bandwidth dependent on drive source impedance. 3 gnd must be connected to power supply ground. 4 vdc supply voltage vdc = +6v to +15v. 5mt mechanical tuning screw. (this is initially set at the factory per customer speci ed frequency, see application notes herein) pin descriptions 8.198 8.199 8.200 8.201 8.202 5 7.5 10 12.5 15 789101112 frequency (ghz) output power (dbm) vtune (v) 10 -10 10 -9 10 -8 10 -7 10 -6 10 2 10 3 10 4 x - axis (perpendicular to connectors) y - axis (parallel to connectors) z - axis g - sensitivity (g 2 /hz) offset frequency (hz) ordering instructions each hmc-c200 dro requires tuning to a speci c frequency in the 8.0 - 8.3 ghz range. to order an hmc-c200, this frequency must be speci ed at the time of purchase. hittite guarantees a 250 khz range around this speci ed frequency upon delivery. please refer to the application notes for more details. for example, when ordering an hmc-c200 centered at 8.200 ghz, specify hmc-c200-8200.
for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 3 - 7 dielectric resonator oscillator 3 outline drawing notes: 1. package, cover material: aluminum. 2. finish: gold plate over nickel plate. 3. mounting spacer: nickel plated aluminum. 4. all dimensions are in inches [millimeters]. 5. tolerances: unless otherwise specified 5.1 .xx = `.02 [.51] 5.2 .xxx = `.010 [.25] package information package type c-18 hmc-c200 v03.1009 dielectric resonator oscillator module, 8.0 - 8.3 ghz
for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 3 - 8 dielectric resonator oscillator 3 dro tuning procedure: 1. a mechanical tuning screw (mt) is provided that can adjust the center frequency by approximately 20 mhz from the factory setting. this screw is set at factory per customer speci ed frequency. adjusting the screw clockwise increases the frequency while turning the screw counterclockwise decreases the frequency. the mechanical tuning screw (mt) has stops at either end of its approximately 8 turn range. do not attempt to force screw the past stops. 2. connect the rf output to a spectrum analyzer and adjust the mechanical tuner (mt) to set the output fre- quency to within 1 mhz of the desired value. 3. set spectrum analyzer settings for a 10 mhz span centered on the desired output frequency. change the reference value of the spectrum analyzer to be approximately 15 dbm and change the vertical scale to be 1db / division such that the peak oscillation frequency is visible on the screen. 4. use the tune voltage (vt) to maximize the dro output power and note the frequency. note: the tune voltage should never be adjusted higher than +15v . 5. if the frequency is meeting the new requirement and the output power is greater than 12 dbm, then the tuning procedure is complete. if the frequency is not meeting the requirement then carefully readjust the mechanical tuner (mt) and tune voltage (vt) until the output frequency is within the required range. please note: 1. the tune voltage (vt) sustains oscillation over a fairly narrow range (approximately 1 mhz) before output power, temperature stability and phase noise performance starts to degrade. in some cases it is possible for the tune voltage (vt) to be adjusted to the point where oscillation stops. therefore, the mechanical tuning screw (mt) should be used as a coarse tune and the tune voltage (vt) is effectively a ne tune. in pll applications where the tune voltage (vt) is used within the loop, this limited voltage range must be considered during the design of the loop. a limiting circuit must be used to keep the vt voltage within the optimal range. 2. if the output power is less than 12 dbm then the dro may be at the correct frequency but the phase noise performance and the stability over temperature may both have been degraded. it is therefore recommended that the customer verify phase noise and stability after custom tuning. application notes hmc-c200 v03.1009 dielectric resonator oscillator module, 8.0 - 8.3 ghz
for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 3 - 9 dielectric resonator oscillator 3 phase locked application fixed output frequency application hmc-c200 v03.1009 dielectric resonator oscillator module, 8.0 - 8.3 ghz
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