637L1946A3T

Model 637 Very Low Jitter LVPECL or LVDS Clock Features        Ceramic Surface Mount Package Very Low Phase Jitter Performance, 500fs Maximum Fundamental or 3rd Overtone Crystal Design Frequency Range 10 – 320MHz * +2.5V or +3.3V Operation [+1.8V LVDS only] Output Enable Standard Tape and Reel Packaging, EIA-418 Applications     SerDes Storage Area Networking Broadband Access SONET/SDH/DWDM     PON Ethernet/GbE/SyncE Fiber Channel Test and Measurement Part Dimensions: 7.0 × 5.0 × 2.0mm • 178.462mg Standard Frequencies - 25.00MHz - 125.00MHz - 50.00MHz - 150.00MHz - 74.1758MHz - 155.52MHz - 74.25MHz - 156.25MHz - 100.00MHz - 161.1328MHz - 187.50MHz - 200.00MHz - 212.50MHz - 250.00MHz - 312.50MHz * See Page 9 for additional developed frequencies. Check with factory for availability of frequencies not listed. 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 Type P Model 637 Code P L E V [MHz] XXX or XXXX Output LVPECL - Pin 1 Enable LVDS - Pin 1 Enable LVPECL - Pin 2 Enable LVDS - Pin 2 Enable Code 6 5 4 3 2 Code Frequency Product Frequency Code 1 Notes: 1] 2] 3] 4] Frequency Stability 3 Frequency Code Temperature Range I Stability ±20ppm 2 ±25ppm ±30ppm ±50ppm ±100ppm Supply Voltage 3 Code M 2 3 Code Temp. Range -10°C to +60°C A -20°C to +70°C C -40°C to +85°C I G -40°C to +105°C 3 Packaging T Voltage +1.8Vdc 4 +2.5Vdc +3.3Vdc Packing Code 1k pcs./reel T Refer to document 016-1454-0, Frequency Code Tables. 3-digits for frequencies