HI-1579, HI-1581
DC ELECTRICAL CHARACTERISTICS (cont.)
V
DD
= 3.3 V, GND = 0V, T
A
= Operating Temperature Range (unless otherwise specified).
PARAMETER
TRANSMITTER
Output Voltage
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
(Measured at Point “A
D
” in Figure 3 unless otherwise specified)
Direct coupled
Transformer coupled
V
OUT
V
OUT
V
ON
Direct coupled
V
DYN
V
DYN
C
OUT
35 ohm load
(Measured at Point “A
D
“ in Figure 3)
70 ohm load
(Measured at Point “A
T
“ in Figure 4)
Differential, inhibited
35 ohm load
(Measured at Point “A
D
“ in Figure 3)
70 ohm load
(Measured at Point “A
T
“ in Figure 4)
1 MHz sine wave
-90
-250
6.1
20.0
9.0
27.0
10.0
90
250
15
Vp-p
Vp-p
mVp-p
mV
mV
pF
Output Noise
Output Dynamic Offset Voltage
Transformer coupled
Output Capacitance
AC ELECTRICAL CHARACTERISTICS
VDD = 3.3 V, GND = 0V, T
A
=Operating Temperature Range (unless otherwise specified).
PARAMETER
RECEIVER
Receiver Delay
Receiver gap time
Receiver Enable Delay
TRANSMITTER
Driver Delay
Rise time
Fall Time
Inhibit Delay
SYMBOL
t
DR
t
RG
t
REN
TEST CONDITIONS
From input zero crossing to RXA/B or RXA/B
Spacing between RXA/B and RXA/B pulses
From RXENA/B rising or falling edge to
RXA/B or RXA/B
MIN
TYP
MAX
450
Note 3
UNITS
ns
ns
(Measured at Point “A
T
” in Figure 4)
90
Note 1
365
Note 2
40
ns
(Measured at Point “A
D
” in Figure 3)
t
DT
tr
tf
t
DI-H
t
DI-L
TXA/B, TXA/B to BUSA/B, BUSA/B
35 ohm load
35 ohm load
Inhibited output
Active output
100
100
150
300
300
100
150
ns
ns
ns
ns
ns
Note 1. Measured using a 1 MHz sinusoid, 20 V peak to peak, line to line at point “AT” (Guaranteed but not tested).
Note 2. Measured using a 1 MHz sinusoid, 860 mV peak to peak, line to line at point “AT” (100% tested).
Note 3. Measured using a 1 MHz sinusoid, 860 mV peak to peak, line to line at point “AT”. Measured from input zero crossing point.
MIL-STD-1553
BUS A
(Direct Coupled)
Isolation
Transformer
55W
BUS A
MIL-STD-1553
BUS B
(Transformer Coupled)
MIL-STD-1553
Stub Coupler
52.5W
Transceiver A
55W
1:2.5
Isolation
Transformer
BUS B
BUS A
Transceiver B
BUS B
1:2.5
1:1.4
52.5W
HI-1579 / HI-1581
Figure 2. Bus Connection Example using HI-1579 or HI-1581
HOLT INTEGRATED CIRCUITS
5
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
