Teledyne LeCroy QPHY-USB - Manual (Page 5)

QPHY-USB Software Option
QPHY-USB Operator’s Manual Rev F
5
Figure 39. Hub upstream repeater end of packet dribble .................................................................................. 38
Figure 40. Hub upstream repeater delay ............................................................................................................. 39
Figure 41. Hub and Device Fixture Connections for Downstream Repeater Test ........................................... 40
Figure 42. Hub downstream repeater delay ........................................................................................................ 40
Figure 43. Hub downstream repeater sync field truncation and corruption .................................................... 41
Figure 44. Hub downstream repeater end of packet dribble ............................................................................. 41
Figure 45. Receiver Sensitivity Test Setup .......................................................................................................... 42
Figure 46. Use Device Command drop down list of HS Electrical Test Tool ................................................... 43
Figure 47. Response to IN tokens with 12-bit sync - all packets NAK’d .......................................................... 43
Figure 48. Intermittent Response to IN tokens at low amplitude ...................................................................... 44
Figure 49. Receiver squelch level – no response to IN tokens ......................................................................... 45
Figure 50. FS/LS Signal Quality Test Fixture Sections....................................................................................... 47
Figure 51. Bus-Powered Hub Drop test equipment setup ................................................................................. 48
Figure 52. Hub Droop Test Equipment Setup ...................................................................................................... 50
Figure 53. Device and oscilloscope connections for droop test ...................................................................... 50
Figure 54. Droop voltage waveform ..................................................................................................................... 51
Figure 55. Host Low-Speed Downstream Signal Quality Test Equipment Setup ............................................ 53
Figure 56. Cursor Positioning for Host Low-Speed Signal Quality Test .......................................................... 54
Figure 57. Host Full-Speed Downstream Signal Quality Test Equipment Setup ............................................. 55
Figure 58. Cursor Positioning for Host Full-Speed Downstream Signal Quality ............................................ 56
Figure 59. Inrush Current Pulse ........................................................................................................................... 57
Figure 60. Hub Low-Speed Downstream Signal Quality Setup ......................................................................... 58
Figure 61. Hub Full-Speed Downstream Signal Quality Setup .......................................................................... 59
Figure 62. Cursor Placement For Hub FS Downstream Signal Quality Test .................................................... 60
Figure 63. Device Full-Speed Upstream Signal Quality Test Equipment Setup .............................................. 61
Figure 64. Isolation of Upstream Data Packet ..................................................................................................... 62
Figure 65. The Skew parameter right side dialog, Skew clock 2 tab, showing default setup ........................ 64