SN65LVDS108

8-PORT LVDS REPEATER

SLLS399A – NOVEMBER 1999 – REVISED MARCH 2000

5

POST OFFICE BOX 655303

switching characteristics over recommended operating conditions (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

tPLH

Propagation delay time, low-to-high-level output

1.6

2.8

4.5

ns

tPHL

Propagation delay time, high-to-low-level output

1.6

2.8

4.5

ns

tr

Differential output signal rise time

RL = 100 Ω,

0.3

0.8

1.2

ns

tf

Differential output signal fall time

RL = 100 Ω,

CL = 10 pF,

0.3

0.8

1.2

ns

tsk(p)

Pulse skew (|tPHL - tPLH|)‡

See Figure 4

150

500

ps

tsk(o)

Output skew§

300

ps

tsk(pp)

Part-to-part skew#

1.5

ns

tPZH

Propagation delay time, high-impedance-to-high-level output

5.7

15

tPZL

Propagation delay time, high-impedance-to-low-level output

See Figure 5

7.7

15

ns

tPHZ

Propagation delay time, high-level-to-high-impedance output

See Figure 5

3.2

15

tPLZ

Propagation delay time, low-level-to-high-impedance output

3.2

15

ns

† All typical values are at 25

°C and with a 3.3 V supply.

‡ tsk(p) is the magnitude of the time difference between the tPLH and tPHL of any output of a single device.

§ tsk(o) is the magnitude of the time difference between the tPLH or tPHL measured at any two outputs.

# tsk(pp) is the magnitude of the time difference in propagation delay times between any specified terminals of two devices when both devices

operate with the same supply voltages, at the same temperature, and have identical packages and test circuits.

PARAMETER MEASUREMENT INFORMATION

(VOY + VOZ)/2

IOZ

IOY

Y

Z

VOD

VOY

VOC

VOZ

VID

VIB

VIA

IIA

A

B

IIB

Figure 1. Voltage and Current Definitions