hi-1579pst Holt Integrated Circuits, Inc., hi-1579pst Datasheet - Page 5

• Manufacturer Part Number: hi-1579pst
• Description: 3.3v Monolithic Dual Transceivers
• Manufacturer: Holt Integrated Circuits, Inc.

DC ELECTRICAL CHARACTERISTICS (cont.)
AC ELECTRICAL CHARACTERISTICS
VDD = 3.3 V, GND = 0V, T =Operating Temperature Range (unless otherwise specified).
VDD = 3.3 V, GND = 0V, T = Operating Temperature Range (unless otherwise specified).
RECEIVER
Receiver Delay
Receiver gap time
Receiver Enable Delay
TRANSMITTER
Driver Delay
Rise time
Fall Time
Inhibit Delay
TRANSMITTER
Output Voltage
Output Noise
Output Dynamic Offset Voltage
Output resistance
Output Capacitance
PARAMETER
Point “A “
(Measured at Point “A ” in Figure 2)
(Measured at Point “A ” in Figure 2)
TXINHA/B
(Measured at Point “A ” in Figure 2 unless otherwise specified)
PARAMETER
D
TXA/B
TXA/B
A
A
Transformer coupled
Transformer coupled
SYMBOL
Direct coupled
Direct coupled
tREN
tDI-H
tDI-L
tRG
tDR
tDT
tr
tf
TRANSMITTER
Figure 2. Direct Coupled Test Circuits
D
35 W
D
D
From input zero crossing to RXA/B or
Spacing between RXA/B and RXA/B pulses
TEST CONDITIONS
From RXENA/B rising or falling edge to
HOLT INTEGRATED CIRCUITS
TXA/B, TXA/B to BUSA/B, BUSA/B
SYMBOL
BUSA/B
BUSA/B
55 W
55 W
V
V
V
V
R
C
V
OUT
OUT
DYN
DYN
OUT
OUT
ON
RXA/B or
Inhibited output
Active output
35 ohm load
35 ohm load
Transformer
(Measured at Point “A “ in Figure 2)
(Measured at Point “A “ in Figure 3)
(Measured at Point “A “ in Figure 2)
Isolation
(Measured at Point “A “ in Figure 3)
HI-1579
2.5:1
Differential, not transmitting
Transformer
RXA/B
5
Isolation
Differential, inhibited
1:2.5
1 MHz sine wave
CONDITION
35 ohm load
70
35 ohm load
70 ohm load
ohm load
RXENA/B
RXA/B
D
T
D
T
55 W
55 W
RECEIVER
MIN
100
100
90
35 W
MIN
20.0
-250
6.1
-90
10
TYP
RXA/B
RXA/B
TYP
MAX
Point “A “
450
365
150
300
300
100
150
40
MAX
27.0
10.0
9.0
250
90
15
D
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
UNITS
mVp-p
Kohm
Vp-p
Vp-p
mV
mV
pF