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6

PS8539

05/01/01

PI90LV179/PI90LV180/

PI90LV050/PI90LV051

3.3V LVDS High-Speed Differential Line Drivers and Receivers

Parameter Measurement Information

Driver (continued)

2 V

1.4V

0.8V

100%

80%

20%

0%

0V

VOD(H)

VOD(L)

Output

VOD

100

Ω

±1%

CL = 10pF

(2 Places)

tPHL

tPLH

tf

tr

NOTE A: All input pulses are supplied by a generator having the following characteristics: tr or tf ≤ 1 ns, pulse repetition rate (PRR) = 50 Mpps,

pulse width = 10

± 0.2ns. CL includes instrumentation and fixture capacitance within 0.06 mm of the D.U.T.

VOC

CL = 10pF

(2 Places)

3 V

0 V

VOC(PP)

VOC(SS)

VOC

49.9

Ω, ±1% (2 Places)

NOTE A: All input pulses are supplied by a generator having the following characteristics: tr or tf ≤ 1 ns, pulse repetition rate (PRR) = 50 Mpps,

pulse width = 10

±0.2ns.CLincludesinstrumentationandfixturecapacitancewithin0.06mm of the D.U.T. ThemeasurementofVOC(PP)

is made on test equipment with a –3 dB bandwidth of at least 300 MHz.

Figure 2. Test Circuit, Timing, and Voltage Definitions for the Differential Output Signal

Figure 3. Test Circuit and Definitions for the Driver Common-Mode Output Voltage