
2
°C/W
°C
s
MHz
%
W
V
mA
20
150
+300
19.5
7
0.01
0.1
0.001
0.01
60
0.77
0.97
1.17
1.57
0.58
0.78
0.98
1.38
0.22
0.42
0.62
1.02
5.5
3.6
5.5
140
240
340
540
80
180
280
480
40
-55
-65
17.5
4
-0.01
-0.10
0.001
-0.01
40
4.5
3.0
4.75
THERMAL
Thermal Resistance, Junction-to-Case,
Hottest Die (
θJC)
Operating Junction Temperature
Storage Temperature
Lead Temperature (soldering, 10 sec.)
1553 MESSAGE TIMING
RT-to-RT Response Timeout
(Note 12)
RT Response Time
(mid-parity to mid-sync) (Note 12)
Transmitter Watchdog Timeout
CLOCK INPUT
Frequency
n Nominal Value
Default
Option
n Long Term Tolerance
1553A Compliance
1553B Compliance
n Short Term Tolerance, 1 second
1553A Compliance
1553B Compliance
n Duty Cycle
POWER DISSIPATION
Total Hybrid
n BU-61705
Idle
25% Transmitter Duty Cycle
50% Transmitter Duty Cycle
100% Transmitter Duty Cycle
n BU-61703
Idle
25% Transmitter Duty Cycle
50% Transmitter Duty Cycle
100% Transmitter Duty Cycle
Hottest Die
Idle
25% Transmitter Duty Cycle
50% Transmitter Duty Cycle
100% Transmitter Duty Cycle
POWER SUPPLY REQUIREMENTS
Voltages/Tolerances
n +5V Logic (BU-61705) (Note 10)
n +3.3V Logic (BU-61703) (Note 10)
n +5V Ch. A, +5, Ch. B (Note 10)
Current Drain
n BU-61705
n +5V (transceiver, logic)
Idle
25% Transmitter Duty Cycle
50% Transmitter Duty Cycle
100% Transmitter Duty Cycle
n BU-61703
n +5V (transceiver)
Idle
25% Transmitter Duty Cycle
50% Transmitter Duty Cycle
100% Transmitter Duty Cycle
n 3.3V Logic
UNITS
MAX
TYP
MIN
PARAMETER
TABLE 1. SIMPLE SYSTEM RT SPECIFICATIONS (Cont’d)
18.5
660.5
16.0
12.0
10.0
20.0
5.0
3.3
5.0
V
A
V
mA
pF
0.7
0.2Vcc
10
-50
10
-33
-50
-33
0.4
-3.4
50
2.1
0.8Vcc
0.4
1.0
-10
-350
-10
-350
2.4
3.4
LOGIC
VIH
All signals except CLK_IN
CLK_IN
VIL
All signals except CLK_IN
CLK_IN
Schmidt Hysteresis
All signals except CLK_IN
CLK_IN
IIH (Vcc=5.5V, VIN=Vcc)
IIH (Vcc=5.5V, VIN=2.7V)
IIH (Vcc=3.6V, VIN=Vcc)
IIH (Vcc=3.6V, VIH=2.7V)
IIL (Vcc=5.5V, VIH=0.4V)
IIL (Vcc=3.6V, VIH=0.4V)
VOH (Vcc=4.5V, VIH=2.7V,
VIL=0.2V, IOH=max)
VOH (Vcc=3.0V, VIH=2.7V,
VIL=0.2V, IOH=max)
VOL (Vcc=4.5V, VIH=2.7V,
VIL=0.2V, IOL=max)
VOL (Vcc=3.0V, VIH=2.7V,
VIL=0.2V, IOL=max)
IOL
IOH
CI (Input Capacitance)
CIO (Bi-directional signal input
capacitance)
Vp-p
M
VP-P
mVpeak
nsec
9
27
10
250
300
7
20
22
150
250
6
18
20
-250
100
200
TRANSMITTER
Differential Output Voltage
n Direct Coupled Across 35 ,
Measured on Bus
n Transformer Coupled Across
70
, Measured on Bus
BU-61573(5)XX-XX0 (Note 8)
BU-61573(5)XX-XX2
(Note 8, 9,13)
Output Noise, Differential (Direct
Coupled)
Output Offset Voltage, Transformer
Coupled Across 70 ohms
Rise/Fall Time
BU-61703(5)X3
BU-61703(5)X4
K
pF
Vp-p
Vpeak
5
0.860
10
2.5
0.200
RECEIVER
Differential Input Resistance
(Notes 1-6)
Differential Input Capacitance
(Notes 1-6)
Threshold Voltage, Transformer
Coupled,
Common Mode Voltage (Note 7)
V
6.0
7.0
6.0
-0.3
ABSOLUTE MAXIMUM RATING
Supply Voltage
n Logic +5V or +3.3V
n RAM +5V
n Transceiver +5V
n Voltage Input Range for +5V
Powered Logic (BU-61705)
n Voltage Input Range for +3.3V
Powered Logic (BU-61703)
UNITS
MAX
TYP
MIN
PARAMETER
TABLE 1. SIMPLE SYSTEM RT SPECIFICATIONS