STLVDS31(2003) Просмотр технического описания (PDF) - STMicroelectronics

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STLVDS31
(Rev.:2003)

HIGH SPEED DIFFERENTIAL LINE DRIVERS

STMicroelectronics 

STLVDS31

SWITCHING CHARACTERISTICS (Unless otherwise noted. Typical values are referred to TA = 25°C

and VCC = 3.3V)

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

tPLH Propagation Delay Time,

Low to High Output

tPHL Propagation Delay Time,

High to Low Output

tr Differential Output Signal

Rise Time

tf Differential Output Signal

Fall Time

RL = 100Ω CL = 10pF

Fig. 2

tsk(P)

tsk(O)

tPZH

Pulse Skew (|tTHL = tTLH|)

Channel to Channel Output

Skew (note1)

Propagation Delay Time,

High Impedance to High

Level Output

Fig. 4

tPZL Propagation Delay Time,

High Impedance to Low

Level Output

tPHZ Propagation Delay Time,

High Level to High

Impedance Output

tPLZ Propagation Delay Time,

Low Level to High

Impedance Output

Note 1: tsk(O) is the maximum delay time difference between drivers on the same device.

Note 2: RS-232 IN to TTL-CMOS OUT (from 50% to 50%)

0.5

1.4

2

ns

1

1.7

2.5

ns

0.4

0.5

0.6

ns

0.4

0.5

0.6

ns

0.3

0.6

ns

0

0.3

ns

5.4

15

ns

2.5

15

ns

8.1

15

ns

7.3

15

ns

Figure 1 : Voltage and Current Definitions

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