specifications subject to change without notice. all dimensions in inches. ? copyright 2008 the connor-winfield corporation bulletin page revision date tx238 1of2 01 14 nov 2008 5x7mm surface mount high precision tcxo the connor-winfield d75 5x7mm surface mount temperature compensated crystal controlled oscillators (tcxo) with a tri-state lvcmos output. through the use of analog temperature compensation, the d75 capable of holding sub 1-ppm stabilities over the 0 to 70 temperature range. ?s j - series are j - series are c model d75j tcxo 3.3v operation lvcmos output logic frequency : temperature range: low jitter <1ps rms tri-state enable/disable function 5x7mm surface mount package tape and reel packaging rohs compliant / lead free stability 1.0ppm 0 to 70c 2111 comprehensive drive aurora, illinois 60505 phone: 630-851-4722 fax: 630-851-5040 www.conwin.com us headquarters 630-851-4722: european headquarters: +353-61-472221 d75j 0847 38.88mhz description features in stock at digi-key absolute maximum ratings parameter minimum nominal maximum units note storage temperature -55 - 85 c supply voltage (vcc) -0.5 - 6.0 vdc input voltage -0.5 - vcc+0.5 vdc operating specifications parameter minimum nominal maximum units note frequencies available (fo) 38.88, 50.0 mhz frequency calibration @ 25 c -1.0 - 1.0 ppm 1 frequency stability [(fmax C fmin)/2.fo] -1.0 - 1.0 ppm 2 supply voltage variation (vcc 5%) -0.2 - 0.2 ppm load coefficient (5%) -0.2 - 0.2 ppm static temperature hysteresis - - 0.4 ppm 3 aging -1.0 - 1.0 ppm/year temperature range 0 - 70 c supply voltage (vcc) 3.135 3.3 3.465 vdc supply current (icc) - - 6 ma period jitter - 3 5 ps rms phase jitter (bw=12khz to 20mhz) - 0.5 1 ps rms ssb phase noise at 10hz offset - -70 dbc/hz ssb phase noise at 100hz offset - -100 dbc/hz ssb phase noise at 1khz offset - -120 dbc/hz ssb phase noise at 10khz offset - -140 dbc/hz ssb phase noise at >100khz offset - -145 dbc/hz input characteristics for enable / disable function (pin 8) parameter minimum nominal maximum units note enable voltage (high) or open circuit (vih) 70% vcc - - vdc 4 disable voltage (low) output tri-stated (vil) - - 30% vcc vdc lvcmos output characteristics parameter minimum nominal maximum units note load - 15 - pf 5 voltage (high) (voh) 90%vcc - - vdc (low) (vol) - - 10%vcc vdc current (high) (ioh) -4 - - ma (low) (iol) - - 4 ma duty cycle at 50% of vcc 45 50 55 % rise / fall time 10% to 90% - - 8 ns description note: 1) initial calibration @ 25 c. specifications at time of shipment after 48 hours of operation 2) frequency stability vs. change in temperature. 3) frequency change after reciprocal temperature ramped over the operating range. frequency measured before and after at 25c. 4) leave pad 8 unconnected if enable / disable function is not required. when tri-stated, the output stage is disabled but the oscillator and compensation circuit are still active (current consumption < 1ma). 5) or best performance it is recommended that the circuit connected to this output should have an equivalent input capacitance of 15pf.
2111 comprehensive drive aurora, illinois 60505 phone: 630-851-4722 fax: 630-851-5040 www.conwin.com specifications subject to change without notice. all dimensions in inches. ? copyright 2008 the connor-winfield corporation us headquarters: 630-851-4722 european headquarters: +353-61-472221 bulletin page revision date tx238 2of2 01 14 nov 2008 1 0.276 0.006 (7.0mm) 0.197 0.006 (5.0mm) 0.079 max. (2.0mm) 0.025(6 places) (0.635mm) 0.100 (2.54mm) 0.040 (1.02mm) (6 places) 0.030 (0.762mm) (4 places) 0.100 (2.54mm) pin 1 0.038 (0.965mm) (4 places) d75j 0847 38.88mhz dimensional tolerance: .005 (.127mm) .02 (.508mm) 1 23 4 5 6 7 8 9 10 120c 150c 180c 260c 0 220c 360 sec. max. 120 s max. 10 s 60 s max. time temperature 260c pad connection 1 do not connect 2 do not connect 3 do not connect 4 ground 5 output 6 do not connect 7 do not connect 8 tri-state enable / disable 9 supply, vcc 10 do not connect pad connections package layout suggested pad layout solder profile output waveform test circuit ordering information d75 - 0 . m j 3888 hz* d75j - 050.0mhz * tape and reel information environmental characteristics vibration: vibration per mil std 883e method 2007.3 test condition a shock: mechanical shock per mil std 883e method 2002.4 test condition b. soldering: smd product suitable for convection reflow soldering. peak temperature 260 c. maximum time above 220 c, 60 seconds. solderability solderability per mil std 883e method 2003 package characteristics package ceramic surface mount package. design recommendations 0.215 (5.46mm) 0.037 (0.94mm) 0.051 (1.28mm) 0.051 (1.28mm) 0.295 (7.49mm) 0.030 (0.76mm) keep out area* top view 1 * do not route any traces in the keep out area. it is recommended the next layer under the keep out area is to be ground plane. tcxo series center frequency tcxo series center frequency osc top layer ground layer bottom layer output buffer 50 ohm trace without vias ....... vcc, should have a large copper area for reduced inductance. connect a 0.01uf bypass capacitor <0.1?(2.54mm) from the pad. ground, should have a large copper area for reduced inductance. 0.010?(0.254mm) recommended clearance inductance for internal copper flood. top view 1 3 4 5 6 8 9 10 buffer ground buffer should be equivalent to 50 ohm trace <1?by design input load 15pf. vcc ground top view do not route any traces in the keep out area. it is recommended the next layer under the keep out area is to be ground plane. 3 5 4 8 7 6 2 1 10 9 vcc supply voltage dnc dnc dnc dnc dnc dnc output 15 pf** .01 uf bypass e/d dnc = do not connect e/d = enable / disable ** npo grade component * for the tape and reel option, add -t to the end of the part number. example: d75j-050.0 mhz -t
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