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 2 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 2)
70 ohm load
(Measured at Point “A
T
“ in Figure 3)
Differential, inhibited
35 ohm load
(Measured at Point “A
D
“ in Figure 2)
70 ohm load
(Measured at Point “A
T
“ in Figure 3)
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
V
DD
= 3.3 V, GND = 0V, T
A
=Operating Temperature Range (unless otherwise specified).
PARAMETER
RECEIVER
Receiver Delay
Receiver gap time
SYMBOL
t
DR
t
RG
TEST CONDITIONS
From input zero crossing to RXA/B
or RXA/B
Spacing between RXA/B
and RXA/B pulses.
1 MHz sine wave applied at point “AT” Figure 3,
amplitude range 0.86 Vp-p to 27.0Vp-p
MIN
TYP
MAX
450
UNITS
ns
ns
(Measured at Point “A
D
” in Figure 2 unless otherwise specified)
90
365
Receiver Enable Delay
TRANSMITTER
Driver Delay
Rise time
Fall Time
Inhibit Delay
t
REN
From STROBE rising or falling edge to
RXA/B or RXA/B
40
ns
(Measured at Point “A
D
” in Figure 2)
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
MIL-STD-1553
BUS A
(Direct Coupled)
Isolation
Transformer
BUS A
55W
Transceiver A
BUS A
1:2.5
Isolation
Transformer
BUS B
55W
MIL-STD-1553
Stub Coupler
52.5W
MIL-STD-1553
BUS B
(Transformer Coupled)
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 ]
