637L10003I2T CTS

Model 637 Very Low Jitter LVPECL or LVDS Clock Features Ceramic Surface Mount Package Very Low Phase Jitter Performance, 500fs Maximum rd Fundamental or 3 Overtone Crystal Design Frequency Range 10 320MHz * Part Dimensions: 7.0 5.0 2.0mm 178.462mg +2.5V or +3.3V Operation +1.8V LVDS only Output Enable Standard Tape and Reel Packaging, EIA-418 Standard Frequencies - 25.00MHz - 125.00MHz - 187.50MHz - 50.00MHz - 150.00MHz - 200.00MHz Applications - 74.1758MHz - 155.52MHz - 212.50MHz SerDes PON - 74.25MHz - 156.25MHz - 250.00MHz Storage Area Networking Ethernet/GbE/SyncE - 100.00MHz - 161.1328MHz - 312.50MHz Broadband Access Fiber Channel * See Page 9 for additional developed frequencies. Check with factory for availability of frequencies not listed. SONET/SDH/DWDM Test and Measurement Description CTS Model 637 is a low cost, high performance clock oscillator supporting differential LVPECL or LVDS outputs. Employing the latest IC technology, M637 has excellent stability and low jitter/phase noise performance. Ordering Information Output Frequency Code Frequency Temperature Supply Model Packaging Type MHz Stability Range Voltage 3 I 3 637 P XXX or XXXX T Output Stability Voltage Code Code Code 2 4 P LVPECL - Pin 1 Enable 6 M 20ppm +1.8Vdc LVDS - Pin 1 Enable 25ppm +2.5Vdc L 5 2 E LVPECL - Pin 2 Enable 4 30ppm 3 +3.3Vdc LVDS - Pin 2 Enable 50ppm V 3 2 100ppm Frequency Temp. Range Packing Code Code Code A -10C to +60C T 1k pcs./reel 1 Product Frequency Code -20C to +70C C I -40C to +85C 3 G -40C to +105C Notes: 1 Refer to document 016-1454-0, Frequency Code Tables. 3-digits for frequencies <100MHz, 4-digits for frequencies 100MHz or greater. Check factory for availability. Temperature codes A and C only. 2 3 Check factory for availability. Stability codes 2 and 3 only. LVDS output only. Consult factory for availability. 4 Not all performance combinations and frequencies may be available. Contact your local CTS Representative or CTS Customer Service for availability. This product is specified for use only in standard commercial applications. Supplier disclaims all express and implied warranties and liability in connection with any use of this product in any non-commercial applications or in any application that may expose the product to conditions that are outside of the tolerances provided in its specification. DOC 008-0453-0 Rev. D Page 1 of 9 2017 CTS Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote. Model 637 Very Low Jitter LVPECL or LVDS Clock Electrical Specifications Operating Conditions PARAMETER SYMBO L CO NDITIO NS MIN TYP MAX UNIT Maximum Supply Voltage V - -0.5 - 5.0 V CC 1.710 1.8 1.890 Supply Voltage V 5% V 2.375 2.5 2.625 CC Note 1 3.135 3.3 3.465 Supply Current LVPECL - 55 88 I V = +2.5V or +3.3V Maximum Load CC CC LVDS - 45 66 mA LVDS V = +1.8 Maximum Load - 7 20 CC -20 +70 Operating Temperature T - +25 C A -40 +85 -40 +105 Storage Temperature T - -50 - +125 C STG Frequency Stability PARAMETER SYMBO L CO NDITIO NS MIN TYP MAX UNIT Frequency Range 10 - 320 LVPECL f V = +2.5V or +3.3V O CC 10 - 320 MHz LVDS LVDS V = +1.8V 20 - 220 CC Frequency Stability f/f - 20, 25, 30, 50 or 100 ppm O Note 2 Aging f/f First Year +25C, nominal V -3 - 3 ppm 25 CC 1. LVDS output only for +1.8V option. 2. Inclusive of initial tolerance at time of shipment, changes in supply voltage, load, temperature and 1st year aging. Output Parameters PARAMETER SYMBO L CO NDITIO NS MIN TYP MAX UNIT LVPECL Output Type - - - Output Load R Terminated to V - 2.0V - 50 - Ohms L CC V V - 1.025 - V - 0.880 OH CC CC PECL Load, -20C to +70C V V V - 1.810 - V - 1.620 OL CC CC Output Voltage Levels V V - 1.085 - V - 0.880 OH CC CC PECL Load, -40C to +85C V V V - 1.830 - V - 1.555 OL CC CC Output Duty Cycle SYM V - 1.3V 45 - 55 % CC Rise and Fall Time T , T 20%/80% Levels, R = 50 Ohms - 0.3 0.7 ns R F L LVDS Output Type - - - Output Load R Between Outputs - 100 - Ohms L V - 1.43 1.60 OH Output Voltage Levels LVDS Load V V 0.90 1.10 - OL Output Duty Cycle SYM 1.25V 45 - 55 % Differential Output Voltage V R = 100 Ohms 247 330 454 mV OD L Offset Voltage V LVDS Load 1.125 1.25 1.375 V OS Rise and Fall Time T , T 20%/80% Levels, R = 100 Ohms - 0.4 0.7 ns R F L DOC 008-0453-0 Rev. D Page 2 of 9 2017 CTS Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.