# # Clock Generation and Spare Crystal Oscillator Components # # HTM Module Key In Components File # ----------------------------------------------------------- # # # Original Rev. 3-Feb-2018 # Most Recent Rev. 21-Apr-2018 # # # 40.08 MHz Clock Generation # # # Receive the Hub #2 LHC Reference Clock Just for Monitoring # U251 IC_65LVDS2 SY_JUNK sot_23_5 24.00 145.00 1 90 R251 Res_49R9_Ohm_0603 SY_JUNK res_0603 29.50 143.00 1 0 R252 Res_49R9_Ohm_0603 SY_JUNK res_0603 29.50 147.00 1 0 R253 Res_4700_Ohm_0603 SY_JUNK res_0603 31.20 140.50 1 180 R254 Res_2740_Ohm_0603 SY_JUNK res_0603_1sb 31.20 149.50 1 180 R255 Res_110_Ohm_0603 SY_JUNK res_0603 17.50 145.00 1 180 R256 Res_110_Ohm_0603 SY_JUNK res_0603 24.00 152.00 1 0 C251 Cap_220_nFd_0603 SY_JUNK cap_0603 17.50 141.00 1 180 C252 Cap_100_nFd_0603 SY_JUNK cap_0603 29.50 138.00 1 180 ### the J15 LEMO Connector is in the Front Panel Comps file. # # Receive the Hub #1 LHC Reference Clock # U252 IC_65LVDS2 SY_JUNK sot_23_5 245.00 130.00 1 0 R261 Res_49R9_Ohm_0603 SY_JUNK res_0603 243.00 124.50 1 270 R262 Res_49R9_Ohm_0603 SY_JUNK res_0603 247.00 124.50 1 270 R263 Res_4700_Ohm_0603 SY_JUNK res_0603 240.50 122.80 1 90 R264 Res_2740_Ohm_0603 SY_JUNK res_0603_1sb 249.50 122.80 1 90 C253 Cap_220_nFd_0603 SY_JUNK cap_0603 239.50 132.50 1 180 C254 Cap_100_nFd_0603 SY_JUNK cap_0603 238.00 124.50 1 90 C277 Cap_10_uFd_25_V_1206 SY_JUNK cap_1206 256.50 135.00 2 90 # # 40.0787 MHz PLL # U253 IC_PLL_40M0787 SY_JUNK Connor_SFX 245.00 147.00 1 90 R265 Res_110_Ohm_0603 SY_JUNK res_0603 250.30 136.00 1 90 R268 Res_4700_Ohm_0603 SY_JUNK res_0603 238.50 137.00 1 180 R266 Res_49R9_Ohm_0603 SY_JUNK res_0603 247.00 159.00 1 0 R267 Res_49R9_Ohm_0603 SY_JUNK res_0603 247.00 157.00 1 0 C256 Cap_47_nFd_0603 SY_JUNK cap_0603 251.00 159.00 1 0 C257 Cap_47_nFd_0603 SY_JUNK cap_0603 251.00 157.00 1 0 C258 Cap_10_uFd_25_V_1206 SY_JUNK cap_1206 233.50 143.00 1 180 C259 Cap_220_nFd_0603 SY_JUNK cap_0603 244.40 144.40 2 180 C260 Cap_47_nFd_0603 SY_JUNK cap_0603 234.30 145.40 1 180 # # 40.0787 MHZ Clock Fanout # U254 IC_CDCLVD1204 SY_JUNK qfn_16_ti 245.00 170.00 1 90 R273 Res_1k_Ohm_0603 SY_JUNK res_0603 243.00 164.50 1 270 R274 Res_1k_Ohm_0603 SY_JUNK res_0603 245.10 164.50 1 270 R271 Res_49R9_Ohm_0603 SY_JUNK res_0603 254.00 169.00 2 180 R272 Res_49R9_Ohm_0603 SY_JUNK res_0603 254.00 171.00 2 180 C255 Cap_100_nFd_0603 SY_JUNK cap_0603 255.70 173.00 2 180 C261 Cap_10_uFd_25_V_1206 SY_JUNK cap_1206 236.00 177.50 2 0 C262 Cap_220_nFd_0603 SY_JUNK cap_0603 250.50 165.00 1 270 C263 Cap_47_nFd_0603 SY_JUNK cap_0603 248.50 165.00 1 270 # # Coupling 40.0787 MHz Fanout to SiLabs 5338 # R275 Res_110_Ohm_0603 SY_JUNK res_0603 237.00 165.50 1 0 C264 Cap_47_nFd_0603 SY_JUNK cap_0603 235.90 162.50 1 270 C265 Cap_47_nFd_0603 SY_JUNK cap_0603 238.00 162.50 1 270 # # Coupling 40.0787 MHz Fanout to FPGA Logic Clock Input # C266 Cap_47_nFd_0603 SY_JUNK cap_0603 235.00 171.50 1 180 C267 Cap_47_nFd_0603 SY_JUNK cap_0603 235.00 169.50 1 180 # # Front Panel Monitor of the HTM's 40.0787 MHz Clock # U255 IC_65LVDS2 SY_JUNK sot_23_5 24.00 130.00 1 90 R276 Res_110_Ohm_0603 SY_JUNK res_0603 28.50 130.00 1 90 R277 Res_110_Ohm_0603 SY_JUNK res_0603 17.50 130.00 1 180 C268 Cap_220_nFd_0603 SY_JUNK cap_0603 17.50 126.00 1 180 ### the J16 LEMO Connector is in the Front Panel Comps file. # # Spare LVDS Output Crystal Oscillator # U256 NOT_A_PART SY_JUNK LVDS_OSC 210.00 193.00 1 180 C271 Cap_47_nFd_0603 SY_JUNK cap_0603 207.70 185.00 1 270 C272 Cap_47_nFd_0603 SY_JUNK cap_0603 209.80 185.00 1 270 C269 Cap_100_nFd_0603 SY_JUNK cap_0603 217.00 190.90 1 180 C270 Cap_10_uFd_25_V_1206 SY_JUNK cap_1206 217.00 188.00 2 0 # # CLK_3V3 Power Filter # C275 Cap_10_uFd_25_V_1206 SY_JUNK cap_1206 242.40 202.50 1 0 L251 Wurth_744311470 SY_JUNK Wurth_6969_Ind 238.00 193.00 1 90 C276 Cap_220_nFd_0603 SY_JUNK cap_0603 241.70 183.50 1 0 # # CLK_2V5 Power Filter # C281 Cap_220_nFd_0603 SY_JUNK cap_0603 250.80 202.50 1 0 L281 Wurth_744311470 SY_JUNK Wurth_6969_Ind 250.00 193.00 1 90 C282 Cap_10_uFd_25_V_1206 SY_JUNK cap_1206 251.50 178.50 2 180