SN75LVDS179, SN75LVDS180, SN75LVDS050, SN75LVDS051
HIGH-SPEED DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SLLS361A – JUNE 1999 – REVISED MARCH 2000
PARAMETER MEASUREMENT INFORMATION
driver (continued)
Driver Enable
Y
Input
Z
CL = 10 pF
(2 Places)
VOD
100
Ω
±1%
Input
tPHL
2V
1.4 V
0.8 V
tPLH
100%
80%
Output
VOD(H)
0V
VOD(L)
20%
0%
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
±
0.2 ns . CL includes instrumentation and fixture capacitance within 0,06 mm of the D.U.T.
Figure 2. Test Circuit, Timing, and Voltage Definitions for the Differential Output Signal
Driver Enable
Y
Input
Z
VOC
CL = 10 pF
(2 Places)
VOC
VOC(PP)
VOC(SS)
49.9
Ω, ±1%
(2 Places)
3V
0V
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
±
0.2 ns . CL includes instrumentation and fixture capacitance within 0,06 mm of the D.U.T. The measurement of VOC(PP)
is made on test equipment with a –3 dB bandwidth of at least 300 MHz.
Figure 3. Test Circuit and Definitions for the Driver Common-Mode Output Voltage
8
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
