ISL4486 Datasheet, PDF (9/11 Pages) Intersil Corporation – 5V, Ultra High Speed, PROFIBUS, RS-485/RS-422 Transceivers

ISL4486, ISL81486
Typical Performance Curves V_CC = 5V, T_A = 25°C, ISL4486 and ISL81486; Unless Otherwise Specified (Continued)
12
R_DIFF = 54Ω
3
R_DIFF = 54Ω
2.5
11
t_PLHZ
t_PLHY
|t_{PHL(Y or Z)} - t_{PLH(Y or Z)}| = PW Distortion
2
10
1.5
9
t_PHLY
8
t_PHLZ
7
-40 -25
0
25
50
TEMPERATURE (°C)
FIGURE 13. DRIVER PROPAGATION DELAY vs
TEMPERATURE
75 85
1
|t_PHLY - t_PLHZ| or |t_PLHY - t_PHLZ|
0.5
0
-40 -25
|CROSSING PT. OF Y↑ & Z↓ -
CROSSING PT. OF Y↓ & Z↑|
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 14. DRIVER SKEW AND PULSE DISTORTION vs
TEMPERATURE
DI
5
RO
0
R_DIFF = 54Ω, C_L = 15pF
5
0
5
4
3
A/Y
2
1
B/Z
0
TIME (10ns/DIV)
FIGURE 15. DRIVER AND RECEIVER WAVEFORMS,
LOW TO HIGH
160
140
120
100
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-7 -6
Y OR Z = LOW
YY OORR ZZ == HHIIGGHH
-4 -2
0
2
4
6
OUTPUT VOLTAGE (V)
8 10 12
FIGURE 17. DRIVER OUTPUT CURRENT vs SHORT CIRCUIT
VOLTAGE
9
DI
5
RO
0
R_DIFF = 54Ω, C_L = 15pF
5
0
5
4
3
B/Z
2
1
A/Y
0
TIME (10ns/DIV)
FIGURE 16. DRIVER AND RECEIVER WAVEFORMS,
HIGH TO LOW
Die Characteristics
SUBSTRATE POTENTIAL (POWERED UP):
GND
TRANSISTOR COUNT:
528
PROCESS:
Si Gate BiCMOS