TDR Z L ( Z O Z L (TDR) TDR V reflected (Z ρ = = L Z 0 ) V incident (Z L + Z 0 ) 1 TDR ( Z L Z O V reflected 0 ( 0 1. TDR TDR ( -1 TDR TDR TDR

TDR Rambus( USB 2.0 ( ) Firewire (IEEE 1394 (TDR) 80E04 ) TDS8000 TDR 1 www.tektronix.com/scopes/

TDR Z L ( Z O Z L (TDR) TDR V reflected (Z ρ = = L Z 0 ) V incident (Z L + Z 0 ) 1 TDR ( +1-1 0 Z L Z O V reflected 0 ( 0 1. TDR TDR ( -1 TDR TDR TDR ( +1 V ρ = reflected 0 = = 0 V incident V ZL (0) V reflected -V ρ = = = -1 V incident V ZL TDR V ( (rho) ( ρ = reflected V = = 1 V incident V ρ = Vreflected Vincident 2 www.tektronix.com/scopes/

TDR 2 TDS8000 TDR 3: TDR TDR 4 8 TDR 2 : -1 ρ(rho) ( ) ρ= +1 ( ZO ZL Z =Z * (1 ρ) O L (1 ρ) 4: TDR TDS8000 ( (rho) TDR 3 5: www.tektronix.com/scopes/ 3

TDR 6: 9 TDR TDR TDS8000 80E04 TDR 7: 9 TDR 80E04 TDR 8: 9: TDR 4 www.tektronix.com/scopes/

TDR TDR TDR ( TDR 10) TDR (DUT) TDR TDR TDR TDR TDR TDR TDR DUT T (resolution) =1/2 T R(system) (Z O ) TDR TDR rho ohm (Z O ) TDR TDS8000 3.5 mm rho ohm www.tektronix.com/scopes/ 5

TDR TDR / rho ohm DUT TDS8000 rho ((cable ) DUT (1- ( cable ) 50 DUT 50 DUT DUT 50 DUT DUT 50 DUT 50 TDS8000 DUT 6 www.tektronix.com/scopes/

TDR DUT DUT TDR TDS8000 DUT TDR DUT TDS8000 TDR DUT TDR ρ TDR TDR TDR 35 ps 35 ps TDR ECL 200 ps 2 ns 35 ps 1 ns ECL www.tektronix.com/scopes/ 7

TDR TDR DUT TDS8000 TDR 80E04 TDR TDR DUT DUT TDR TDR TDR DUT DUT TDR DUT TDS8000 2 TDS8000 TDR Setup TDR TDS8000 8 www.tektronix.com/scopes/

TDR SMA 10 Mohm TDR SIU800 DUT DUT TDR 50 50 / USB 2.0 TDR P6150 USB 2.0 P6150 USB 80E04 50 TDS8000 USB 2. 0 Z odd = 45Ω(Z diff = 90Ω) 15% Z even = 60Ω(Z cm = 30Ω) 30% 26 ns (TFSCBL) D+ D- 90 www.tektronix.com/scopes/ 9

TDR TDR TDR TDR TDR IC 2.0 1 80E04 TDS8000 TDR 400 ps TDR TDR USB TDR (ZHSTERM) TDR 1: 2.0 (www.usb.org/developers/usb20) A 8 ns B 4 ns 80ΩZ HSTERM 100Ω (ZHSTHRU ) 500 ps 70ΩZ HSTHRU 110Ω ( 1.4 ns ) TDR (400 ps) 10 www.tektronix.com/scopes/

TDR 11 USB 2.0 TDR SMA USB 2.0 DUT 12: TDR SETUP SMA USB SMA TDR 11 TDS8000 TDR Setup SMA TDS8000 Ch 3 Ch 4 80E04 20-GHz TDR 12 (() Display Vectors Oscilloscope Averaging TDR rho rho www.tektronix.com/scopes/ 11

TDR 13: TDR 14: TDR Horizontal Vertical USB 13 TDR Setup Deskew DUT USB 14 15: Define Math Math (Windows( Edit math ) Filter Risetime ( 15) USB 400 ps + 14 Math Waveform Apply 12 www.tektronix.com/scopes/

TDR 17: USB 2.0 16: Measurement USB 90( ( 15% Amplitude Measurement Max Min ( M1 ) Measurement Setup ( 16) Gates Region USB 2.0 10% 90% Annotations 17 TDR Min Max www.tektronix.com/scopes/ 13

TDR TDR TDR TDS8000 18: USB 2.0 ( ) 18 TDR TDR DUT USB TDS8000 USB TDR 14 www.tektronix.com/scopes/

TDR TDS8000 80E04 TDR TDS8000 50 GHz TDR 80E04 TDR TDR TDR 14 TDS8000 rho ohm TDS8000 TDR TDS8000 Windows( Windows TDA Systems IconnectTM TDR TDS8000 TDS8000 GPIB TDS TDS8000 TDS8000 USB PS-2 USB TDS8000 www.tektronix.com/scopes/ 15

TDR TLA600 TLA700 www.tektronix.com Resources For You 16 www.tektronix.com/scopes/