ISL4489E_06 Datasheet, PDF (10/12 Pages) Intersil Corporation – ±15kV ESD Protected, 1/8 Unit Load, 5V, Low Power, High Speed and Slew Rate Limited, Full Duplex, RS-485/RS-422 Transceivers

ISL4489E, ISL4491E
Typical Performance Curves V_CC = 5V, T_A = 25°C; Unless Otherwise Specified (Continued)
750
250
700
t_PLHY
t_PLHZ
650
600
t_PHLY
550
t_PHLZ
500
450
-40 -25
0
25
50
TEMPERATURE (°C)
FIGURE 10. DRIVER PROPAGATION DELAY vs
TEMPERATURE (ISL4489E)
75 85
200
|t_PLHY - t_PHLZ|
150
|t_PHLY - t_PLHZ|
100
50
|CROSS PT. OF Y↑ & Z↓ - CROSS PT. OF Y↓ & Z↑|
0
-40 -25
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 11. DRIVER SKEW vs TEMPERATURE (ISL4489E)
30
28
26
24
t_PLHY
22
t_PLHZ
20
t_PHLZ
18
t_PHLY
16
-40 -25
0
25
50
TEMPERATURE (°C)
FIGURE 12. DRIVER PROPAGATION DELAY vs
TEMPERATURE (ISL4491E)
75 85
5
4
|t_PHLY - t_PLHZ|
3
|t_PLHY - t_PHLZ|
2
1
|CROSSING PT. OF Y↑ & Z↓ - CROSSING PT. OF Y↓ & Z↑|
0
-40 -25
0
25
50
TEMPERATURE (°C)
FIGURE 13. DRIVER SKEW vs TEMPERATURE
(ISL4491E)
75 85
DI
5
RO
0
R_DIFF = 54Ω, C_L = 100pF
5
0
4
Z
3
2Y
1
0
TIME (400ns/DIV)
FIGURE 14. DRIVER AND RECEIVER WAVEFORMS,
LOW TO HIGH (ISL4489E)
10
DI
5
RO
0
R_DIFF = 54Ω, C_L = 100pF
5
0
4
Y
3
2Z
1
0
TIME (400ns/DIV)
FIGURE 15. DRIVER AND RECEIVER WAVEFORMS,
HIGH TO LOW (ISL4489E)
FN6074.3