Aeroflex Colorado Springs Application Note AN-LVDS-007-01 LVDS Driver and Receiver Generalized Propagation Delays Table 1: Cross Reference of Applicable Products Manufacturer Part SMD # Number 3.3-VOLT QUAD DRIVER UT54LVDS031LV/E 5962-98651 Product Name: Device Type 02, 03, 04, 05 Internal PIC 3.3-VOLT QUAD RECEIVER UT54LVDS032LV/E 5962-98652 02, 03, 04, 05 3.3-VOLT QUAD RECEIVER with TERMINATION RESISTOR 3.3V BUS QUAD DRIVER 3.3V DUAL DRIVER and RECEIVER 5.0V QUAD DRIVER 5.0V QUAD RECEIVER 5.0V QUAD DRIVER with COLD SPARE 5.0V QUAD RECEIVER with COLD SPARE 3.0V QUAD BUS LVDS CROSSPOINT SWITCH 3.0V OCTAL BUS LVDS REPEATER UT54LVDS032LVT 5962-04201 01, 02 UT54LVDM031LV UT54LVDM055LV 5962-06201 5962-06202 01 01 WD03, WD07, WD28, WD30 WD04, WD08, WD29, WD31 WD06, WD10 WD21 WD22 UT54LVDS031 UT54LVDS032 UT54LVDSC031 5962-95833 5962-95834 5962-95833 02 02 03 JR05, JR08 JR06. JR09 JR10 UT54LVDSC032 5962-95834 03 JR11 UT54LVDM228 5962-01537 01 UT54LVDM328 5962-01536 01 WD15, WD16 WD17, WD18 1.0 Overview Many system designers require propagation delay performance of LVDS devices over temperature and voltage. Propagation delay limits presented in the device datasheet and corresponding SMDs sometimes range from 3.0ns to 11.0ns and account for voltage and temperature variations. Often this wide limit ranges makes it difficult to analyze critical system timing requirements for a narrower temperature and voltage range. The following Application Note provides a summary of propagation delay values over temperature and voltage for each device in the Aeroflex Colorado Springs LVDS Family as listed in Table 1. Note: Data presented in this application note is not guaranteed and is based on device characterization data over multiple lots. 2.0 Generalized Propagating Delay Values Data contained below includes AC parameters from the datasheet that do not have notes such as “Guaranteed by characterization”, “Guaranteed by design”, or are mathematical combinations of other AC values associated with them. AC switching characteristics of devices listed in table 1 are only guaranteed to the limits listed in the device datasheet and corresponding SMD. Data listed in tables 2 – 12 below is not guaranteed. Creation Date: March 02, 2011 Page 1 of 11 Modification Date: Table 2. Generalized Propagation Delay values for UT54LVDS031LV/E 3.3V Quad LVDS Driver Temp Test TPLH TPHL TPLZ 25.0 TPHZ TPZL TPZH TPLH TPHL TPLZ 125.0 TPHZ TPZL TPZH TPLH TPHL TPLZ -55.0 TPHZ TPZL TPZH Creation Date: March 02, 2011 Vdd (V) 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Page 2 of 11 MinData 1.00 1.07 1.17 1.08 2.02 2.08 2.01 2.07 1.63 1.32 1.62 1.29 1.10 1.20 1.26 1.16 2.33 2.38 2.32 2.37 1.91 1.53 1.88 1.52 0.94 1.02 1.11 1.03 1.82 1.88 1.81 1.87 1.44 1.16 1.43 1.14 MaxData 1.06 1.13 1.25 1.19 2.18 2.22 2.17 2.21 1.86 1.49 1.84 1.48 1.17 1.25 1.35 1.27 2.53 2.55 2.52 2.54 2.17 1.75 2.14 1.73 0.99 1.09 1.18 1.13 1.95 2.00 1.94 2.00 1.65 1.32 1.63 1.30 Mean 1.03 1.10 1.21 1.13 2.11 2.15 2.10 2.15 1.78 1.43 1.76 1.41 1.13 1.22 1.30 1.21 2.44 2.47 2.44 2.47 2.07 1.67 2.05 1.65 0.96 1.06 1.15 1.07 1.89 1.95 1.89 1.94 1.57 1.26 1.55 1.24 Modification Date: tPLH UT54LVDS031LV/E 1.3 1.25 1.2 1.15 3.0V 25C 3.6V 25C (ns) 1.1 3.0V 125C 3.6V 125C 1.05 1 3.0V -55C 3.6V -55C 0.95 0.9 0.85 0.8 1 MIN 2 MEAN 3 MAX Figure 1. Example plot of generalized prop delay tPLH for the UT54LVDS031LV/E tPHL UT54LVDS031LV/E 1.4 1.3 (ns) 1.2 3.0V 25C 3.6V 25C 3.0V 125C 1.1 3.6V 125C 3.0V -55C 3.6V -55C 1 0.9 0.8 MIN1 MEAN 2 MAX 3 Figure 2. Example plot of generalized prop delay tPHL for the UT54LVDS031LV/E Creation Date: March 02, 2011 Page 3 of 11 Modification Date: Table 3. Generalized Propagation Delay values for UT54LVDS032LV/E 3.3V Quad LVDS Receiver Temp Test TPLH TPHL TPLZ 25.0 TPHZ TPZL TPZH TPLH TPHL TPLZ 125.0 TPHZ TPZL TPZH TPLH TPHL TPLZ -55.0 TPHZ TPZL TPZH Creation Date: March 02, 2011 Vdd (V) 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Page 4 of 11 MinData 2.58 2.49 2.48 2.40 2.72 2.72 2.95 2.90 1.56 1.44 1.91 1.75 2.77 2.66 2.65 2.56 3.06 3.03 3.33 3.25 1.89 1.73 2.26 2.04 2.47 2.40 2.38 2.31 2.54 2.54 2.72 2.69 1.40 1.29 1.72 1.60 MaxData 2.72 2.62 2.63 2.54 2.90 2.85 3.14 3.06 1.77 1.58 2.17 1.96 2.93 2.80 2.80 2.70 3.30 3.23 3.61 3.49 2.17 1.93 2.61 2.32 2.62 2.52 2.54 2.46 2.68 2.67 2.88 2.83 1.55 1.41 1.91 1.76 Mean 2.67 2.56 2.56 2.47 2.82 2.79 3.06 2.99 1.68 1.52 2.05 1.87 2.86 2.75 2.74 2.64 3.19 3.13 3.49 3.37 2.04 1.83 2.45 2.20 2.55 2.47 2.46 2.39 2.61 2.61 2.80 2.76 1.47 1.35 1.81 1.67 Modification Date: Table 4. Generalized Propagation Delay values for UT54LVDS033LVT 3.3V Quad LVDS Receiver with Integrated Termination Resistor UT54LVDS032LVT Temp Test TPLH TPHL TPLZ 25.0 TPHZ TPZL TPZH TPLH TPHL TPLZ 125.0 TPHZ TPZL TPZH TPLH TPHL TPLZ -55.0 TPHZ TPZL TPZH Creation Date: March 02, 2011 Vdd (V) 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Page 5 of 11 MinData 2.58 2.49 2.48 2.40 2.72 2.72 2.95 2.90 1.56 1.44 1.91 1.75 2.77 2.66 2.65 2.56 3.06 3.03 3.33 3.25 1.89 1.73 2.26 2.04 2.47 2.40 2.38 2.31 2.54 2.54 2.72 2.69 1.40 1.29 1.72 1.60 MaxData 2.72 2.62 2.63 2.54 2.90 2.85 3.14 3.06 1.77 1.58 2.17 1.96 2.93 2.80 2.80 2.70 3.30 3.23 3.61 3.49 2.17 1.93 2.61 2.32 2.62 2.52 2.54 2.46 2.68 2.67 2.88 2.83 1.55 1.41 1.91 1.76 Mean 2.67 2.56 2.56 2.47 2.82 2.79 3.06 2.99 1.68 1.52 2.05 1.87 2.86 2.75 2.74 2.64 3.19 3.13 3.49 3.37 2.04 1.83 2.45 2.20 2.55 2.47 2.46 2.39 2.61 2.61 2.80 2.76 1.47 1.35 1.81 1.67 Modification Date: Table 5. Generalized Propagation Delay values for UT54LVDM031LV 3.3V Quad LVDM Driver UT54LVDM031LV Temp Test TPLH TPHL TPLZ 25.0 TPHZ TPZL TPZH TPLH TPHL TPLZ 125.0 TPHZ TPZL TPZH TPLH TPHL TPLZ -55.0 TPHZ TPZL TPZH Creation Date: March 02, 2011 Vdd (V) 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Page 6 of 11 MinData 1.20 1.27 1.26 1.35 2.48 2.46 2.43 2.43 1.91 1.74 2.04 1.88 1.35 1.39 1.38 1.45 2.90 3.06 2.85 2.80 2.24 2.03 2.37 2.16 1.09 1.20 1.18 1.28 2.23 2.25 2.20 2.23 1.68 1.54 1.83 1.72 MaxData 1.24 1.33 1.31 1.39 2.59 2.91 2.51 2.70 1.99 1.81 2.14 1.97 1.40 1.45 1.43 1.50 3.07 3.35 3.00 3.32 2.33 2.10 2.48 2.24 1.16 1.26 1.25 1.34 2.33 2.74 2.28 2.70 1.76 1.61 1.92 1.78 Mean 1.22 1.30 1.29 1.38 2.53 2.52 2.47 2.47 1.95 1.78 2.09 1.92 1.38 1.42 1.41 1.47 2.98 3.18 2.92 2.94 2.28 2.06 2.41 2.19 1.12 1.22 1.20 1.30 2.27 2.30 2.24 2.27 1.71 1.56 1.87 1.75 Modification Date: Table 6A. Generalized Propagation Delay values for UT54LVDM055LV 3.3V Dual LVDM Driver/Receiver Driver Temp Test TPLH TPHL TPLZ 25.0 TPHZ TPZL TPZH TPLH TPHL TPLZ 125.0 TPHZ TPZL TPZH TPLH TPHL TPLZ -55.0 TPHZ TPZL TPZH Creation Date: March 02, 2011 Vdd (V) 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Page 7 of 11 MinData 1.37 1.43 1.36 1.43 1.58 1.62 1.45 1.55 1.48 1.43 2.48 1.70 1.48 1.54 1.48 1.54 1.70 1.75 1.62 1.66 1.71 1.60 2.22 2.07 1.27 1.37 1.28 1.38 1.48 1.53 1.38 1.48 1.35 1.33 1.73 1.50 MaxData 1.42 1.50 1.41 1.49 1.63 1.68 1.51 1.62 1.53 1.46 2.62 1.77 1.53 1.59 1.54 1.58 1.76 1.81 1.70 1.72 1.76 1.63 2.49 2.47 1.31 1.45 1.32 1.46 1.53 1.58 1.44 1.53 1.38 1.36 2.03 1.54 Mean 1.39 1.46 1.38 1.46 1.60 1.65 1.48 1.58 1.50 1.44 2.56 1.73 1.51 1.56 1.52 1.56 1.73 1.78 1.66 1.69 1.73 1.61 2.30 2.20 1.29 1.40 1.30 1.42 1.51 1.55 1.41 1.50 1.37 1.34 1.93 1.52 Modification Date: Table 6B. Generalized Propagation Delay values for UT54LVDM055LV 3.3V Dual LVDM Driver/Receiver Receiver Temp Test TPLH TPHL TPLZ 25.0 TPHZ TPZL TPZH TPLH TPHL TPLZ 125.0 TPHZ TPZL TPZH TPLH TPHL TPLZ -55.0 TPHZ TPZL TPZH Creation Date: March 02, 2011 Vdd (V) 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Page 8 of 11 MinData 1.34 1.23 1.27 1.21 1.76 1.79 2.39 2.64 1.59 1.51 1.97 1.96 1.56 1.43 1.45 1.40 1.96 1.97 2.56 2.77 1.82 1.73 2.36 2.40 1.21 1.12 1.16 1.11 1.65 1.69 2.27 2.54 1.44 1.40 1.76 1.75 MaxData 1.41 1.30 1.34 1.27 1.83 1.85 2.47 2.70 1.71 1.37 2.06 2.06 1.68 1.50 1.49 1.44 2.03 2.04 2.65 2.84 1.88 1.79 2.47 2.53 1.28 1.18 1.20 1.15 1.69 1.73 2.33 2.60 1.68 1.40 1.84 1.85 Mean 1.37 1.26 1.29 1.23 1.79 1.82 2.42 2.67 1.96 2.15 2.00 2.01 1.62 1.47 1.47 1.42 2.00 2.01 2.61 2.81 1.85 1.76 2.41 2.46 1.24 1.15 1.18 1.12 1.67 1.70 2.29 2.57 2.88 3.40 1.79 1.79 Modification Date: Table 7. Generalized Propagation Delay values for UT54LVDS031 5.0V Quad LVDS Driver Temp Test TPLH 25.0 TPHL TPLH 125.0 TPHL TPLH -55.0 TPHL Vdd (V) 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 Units ns ns ns ns ns ns ns ns ns ns ns ns MinData 1.93 2.06 1.90 2.04 2.46 2.14 2.50 2.13 1.88 1.97 1.84 1.94 MaxData 1.97 2.09 1.92 2.08 2.60 2.24 2.63 2.49 1.89 2.00 1.86 1.98 Mean 1.95 2.07 1.91 2.05 2.53 2.19 2.56 2.35 1.88 1.99 1.85 1.96 Table 8. Generalized Propagation Delay values for UT54LVDS032 5.0V Quad LVDS Receiver Temp Test TPLH 25.0 TPHL TPLH 125.0 TPHL TPLH -55.0 TPHL Creation Date: March 02, 2011 Vdd (V) 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 Units ns ns ns ns ns ns ns ns ns ns ns ns Page 9 of 11 MinData 1.95 2.09 3.01 3.15 1.99 1.68 3.07 2.70 1.74 1.83 3.20 3.31 MaxData 2.36 2.49 3.67 3.83 2.81 2.45 3.73 3.60 2.17 2.27 3.96 4.09 Mean 2.16 2.29 3.38 3.53 2.40 2.05 3.45 3.25 1.93 2.03 3.43 3.54 Modification Date: Table 9. Generalized Propagation Delay values for UT54LVDSC031 5.0V Quad LVDS Driver with Cold Spare Temp Test TPLH 25.0 TPHL TPLH 125.0 TPHL TPLH -55.0 TPHL Vdd (V) 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 Units ns ns ns ns ns ns ns ns ns ns ns ns MinData 1.84 1.99 2.19 2.35 2.50 2.14 2.19 3.05 1.80 1.89 2.23 2.36 MaxData 2.31 2.26 2.39 2.61 2.78 2.64 2.58 3.30 1.91 2.08 2.36 2.53 Mean 2.01 2.06 2.25 2.53 2.64 2.52 2.28 3.16 1.84 1.99 2.27 2.43 Table 10. Generalized Propagation Delay values for UT54LVDSC032 5.0V Quad LVDS Receiver with Cold Spare Temp Test TPLH 25.0 TPHL TPLH 125.0 TPHL TPLH -55.0 TPHL Creation Date: March 02, 2011 Vdd (V) 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 Units ns ns ns ns ns ns ns ns ns ns ns ns MinData 3.67 3.43 3.05 3.00 4.02 3.79 3.38 3.41 3.13 2.96 2.62 2.66 Page 10 of 11 MaxData 3.75 3.54 3.20 3.27 4.36 4.14 3.66 3.71 3.38 3.20 2.99 3.05 Mean 3.71 3.48 3.16 3.12 4.21 3.99 3.52 3.56 3.24 3.09 2.84 2.88 Modification Date: Table 11. Generalized Propagation Delay values for UT54LVDM228 3.3V LVDM Crosspoint Switch Temp Test TPLH 25.0 TPHL TPLH 125.0 TPHL TPLH -55.0 TPHL Vdd (V) 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 Units ns ns ns ns ns ns ns ns ns ns ns ns MinData 1.30 1.40 1.53 1.53 1.81 1.82 1.94 1.91 1.12 1.29 1.42 1.44 MaxData 1.90 1.53 1.67 1.67 2.46 1.75 1.85 1.84 1.63 1.41 1.57 1.58 Mean 1.65 1.46 1.60 1.60 2.13 1.78 1.90 1.87 1.45 1.35 1.49 1.51 Table 12. Generalized Propagation Delay values for UT54LVDM328 3.3V LVDM Repeater Temp Test TPLH 25.0 TPHL TPLH 125.0 TPHL TPLH -55.0 TPHL Vdd (V) 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 3.0 3.6 Units ns ns ns ns ns ns ns ns ns ns ns ns MinData 1.30 1.40 1.53 1.53 1.67 1.68 1.77 1.74 1.12 1.29 1.42 1.44 MaxData 1.40 1.03 1.67 1.67 1.81 1.10 1.94 1.92 1.24 1.02 1.57 1.58 Mean 1.36 1.17 1.60 1.60 1.74 1.39 1.85 1.83 1.18 1.09 1.49 1.51 3.0 Conclusion As a device manufacturer, Aeroflex Colorado Springs, acknowledges that system temperature and voltage ranges are much tighter than the limits provided in the SMD and corresponding datasheet. This application note is intended to aid the user in the design critical system timings as it related to LVDS drivers and receivers. Creation Date: March 02, 2011 Page 11 of 11 Modification Date: