CT1589MFP [ETC]
Transceiver ; 收发器\n
| 型号： | CT1589MFP |
| 厂家： | 
ETC |
| 描述： | Transceiver
|
| 文件： | 总9页 (文件大小：343K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
THIS DOCUMENT IS FOR MAINTENANCE
PURPOSES ONLY AND IS NOT
RECOMMENDED FOR NEW DESIGNS
OCTOBER 1991
3122-1.2
CT1487M/CT1589M
MIL-STD-1553 LOW POWER SINGLE AND DUAL TRANSCEIVERS
FEATURES
GENERAL DESCRIPTION
The CT1487M/CT1589M family of single and dual
transceivers is a second generation series incorporating
monolithic bipolar devices for improved reliability and
producibility. For thermal considerations, the drive stage
transistors are “off” the bipolar array. Input/output signals
are compatible with both MIL-STD-1553A and B systems.
■ Available in ±15V (CT1487M) and ±12 V (CT1589M)
versions
■ AC interstage coupling prevents static burnout
■ Receiver filtered to improve S/N ratio of system
■ Dissipates only 1.3 watt total at 25% transmitting
duty cycle (dual unit - 1.8 watts total). 100% duty
cycle permissible at 125°C case temperature
DETAILED DESCRIPTION
RECEIVER DESCRIPTION
■ 20 mV typical output offset
■ Meets MIL-STL-1553A/B
The Receiver section accepts bi-phase differential data
at the input and produces two TTL signals at the output.
The outputs are RX DATA OUT and RX DATA OUT and
represent positive and negative excursions, respectively,
of the input beyond a predetermined threshold. See Figure
2 for receiver logic waveforms.
■ Available to Standard Military Drawings (see
Ordering Information)
■ 24 pin double dip package or flat pack for single unit
■ 36 pin double dip package or flat pack for
The positive and negative thresholds are designed for
optimum word error rate. The receiver begins to detect
Data Bus signals (1 MHz, sinusoidal) that exceed 0.9 volt
nominal peak-to-peak when used with the specified
transformer. See Figure 4 for typical input/output
connections.
dual unit
■ TTL compatible
Note: All data shown is for a single transceiver unless
otherwise noted. Dual transceivers are two completely
independent units in a common package.
If the RECEIVER STROBE input is LOW, the RX DATA
OUT and RX DATA OUT are inhibited. If unused, a 2K-
ohm pullup to +5V is recommended.
Note: See ORDERING INFORMATION for units with
inverted outputs. (Pg 7)
Figure 1: Functional Diagram, CT1487M
1
CT1487M/CT1589M
When both TX DATA IN and TX DATA IN inputs are
both held LOW or held HIGH, the driver output becomes a
high impedance and is removed from the line. In addition,
an overriding TX INHIBIT input takes priority over the
condition of the data inputs and disables the driver. See
Figure 3 for the driver logic waveforms.
DRIVER DESCRIPTION
The Driver section accepts complementary TTL data at
the input. When coupled to the Data Bus with the specified
transformer (isolated on the Data Bus side with 55-ohm
fault isolation resistors and loaded by two 70-ohm
terminations plus additional receivers), the Data Bus signal
produced is 6.8 volts nominal peak-to-peak (at point A,
Figure 4).
TX DATA IN and TX DATA IN inputs must be
complementary waveforms of 50% average duty cycle and
with less than 15 ns skew between them.
CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
CT1487
CT1589
Power supply voltage (Vcc)
−0.3 to +18.0V
−0.3 to + 18.0V
Power supply voltage (Vee
)
+0.3 to −18.0V
−0.3 to +7.0V
−0.3 to +5.5V
+0.3 to −18.0V
−0.3 to +7.0V
−0.3 to +5.5V
Power supply voltage (Vccl
)
Logic input voltage (RECEIVER STROBE,
INHIBIT, TX DATA IN, TX DATA IN)
Receiver differential input
(RX DATA IN, RX DATA IN)
± 20 V (40 V p-p)
± 15 V
± 20 V (40 V p-p)
± 15 V
Receiver input voltage (RX DATA IN or
RX DATA IN)
Driver output current (TX DATA OUT or
TD DATA OUT)
+200 mA
+300 mA
Transmission duty cycle at Tc = 125°C
100%
100%
Operating case temperature range (Tc)
−55 to +125°C
−55 to +125°C
POWER AND THERMAL DATA, TOTAL HYBRID (DRIVER AND RECEIVER)
CT1487M
CT1589M
PARAMETER/CONDITION
SYMBOL MIN
TYP
MAX
MIN
TYP
MAX
UNIT
Power supply voltages
Vcc
Vee
Vccl
14.25
-14.25
4.5
15
-15
5
15.75
-15.75
5.5
11.4
-11.4
4.5
12
-12
5
12.6
-12.6
5.5
V
V
V
Power dissipation of most critical
(hottest) device in hybrid during
continuous transmission
Pc
Note 1
350
500
Note1
350
500
mW
(100% duty cycle)
Thermal resistance, most critical device
Øjc
Tjc
50
25
50
25
°C/W
°C
Junction to case temperature rise of
most critical device at 100% duty
cycle transmission
Total supply current “standby” mode, or
transmitting at less than 1% duty cycle
(e.g. 20 µs of transmission every 2ms
or longer interval)
S* D*
15 30
Note 2 25 50
Note 2 32 64
S* D*
22 44
S* D*
15 30
S* D*
22 44
35 70
45 90
Icc
Iee
Iccl
mA
mA
mA
35 70 Note 2 25 50
45 90 Note 2 32 64
Total supply current transmitting
at 1MHz into a
DUTY CYCLE
35-ohm load at
point A in Figure 4
Icc25
Note 3 55 70 75 100 Note 3 70 85 95 120
mA
mA
25%
Icc100 Note 3 185 200 235 260 Note 3 224 240 290 315
100%
* S = single unit, D = dual unit (one unit transmitting)
Notes: 1. Decreases linearly to zero at zero duty cycle.
2. Iee and Iccl limits do not change with mode of operation or duty cycle.
3. Decreases linearly to applicable “standby” value at zero duty cycle.
2
CT1487M/CT1589M
ELECTRICAL CHARACTERISTICS, RECEIVER SECTION (See Figure 2)
PARAMETER/CONDITION
INPUT CHARACTERISTICS
SYMBOL
MIN
TYP
MAX
UNIT
Differential input impedance DC to 1MHz
Differential voltage range
Zin
Vidr
9 K
± 20V
± 10V
40
ohms
Vpeak
Vpeak
dB
Input common mode voltage range
Vicr
Common mode rejection ratio (from point A, Figure 4)
CMRR
STROBE characteristics
(Logic "0" inhibits output)
"0" input current (vs = 0.4 V)
"1" input current (Vs = 2.7 V)
"0" input voltage
lil
lil
-1
40
mA
µA
V
Vil
Vih
0.7
"1" input voltage
2
V
Threshold characteristics (sine wave at 1MHz)
NOTE: Threshold voltages refer to point A, Figure 4.
Vth1
0.8
1.1
8
Vp-p
Filter characteristics
(sine wave input)
2 MHz
3 MHz
Vth2
Vth3
1.5
5
Vp-p
Vp-p
OUTPUT CHARACTERISTICS
"1" state (lsource = 400 µA)
"0" state (lsink = 4 mA)
Voh
Voh
2.5
3.4
0.5
NOTE: With receiver input below threshold both RX DATA
OUT and RX DATA OUT remain in "0" state.
Delay (average) from differential input zero crossings to
RX DATA OUT and RX DATA OUT output 50% points
tDRX
340
450
ns
Figure 2: Receiver Logic Waveforms (for Inverted Data Output, see Ordering Information)
3
CT1487M/CT1589M
ELECTRICAL CHARACTERISTICS, DRIVER SECTION (See Figure 3)
PARAMETER/CONDITION
INPUT CHARACTERISTICS
SYMBOL
MIN
TYP
MAX
UNIT
"0" input current (Vin = 0.4 V)
"1" input current (Vin = 2.7 V)
"0" input voltage
lil
lih
−1
80
mA
µA
V
Vil
0.7
"1" input voltage
Vih
2
V
Delay from TX INHIBIT (0 → 1) to inhibited
output impedance
tDXOFF
150
100
225
150
10
ns
Delay from TX INHIBIT (1 → 0) to active
output impedance
tDXON
ns
Differential output noise
Vnoi
Zoi
mVp-p
ohms
Differential output impedance (inhibited) at 1 MHz
OUTPUT CHARACTERISTICS
8K
Differential output level at point B, Figure 4 (145-ohm load)
Rise and fall times (10%–90% of p-p output)
Vo
tr
26
28
35
Vp-p
ns
100
160
±20
300
±75
Output offset at point A in Figure 4 (35-ohm load)
2.5 µs after mid-bit crossing of parity bit of last word
of a 660 µs message
Vos
mV peak
Delay from 50% point of TX DATA IN or TX DATA IN
to zero crossing of differential output
tDTX
100
200
ns
Figure 3: Driver Logic Waveforms
4
CT1487M/CT1589M
Figure 4: Typical Input/Output Connections
Figure 5: Typical Internal Power Dissipation (Total Hybrid)
5
CT1487M/CT1589M
Figure 6: Mechanical Outline for the “MP” Package
Figure 7: Mechanical Outline and Pinouts (Single Unit)
6
CT1487M/CT1589M
Figure 8: Mechanical Outline and Pinouts (Dual Unit)
7
CT1487M/CT1589M
ORDERING INFORMATION
“Inverted Receiver Data Output” refers to the logic
state of RX DATA OUT and RX DATA OUT when the bus
is quiet. All part numbers with the “I” suffix produce logic
“1” at the receiver outputs for quiet bus.
Some of these devices are available to Standard Military
Drawings. Contact Customer Services at one of the
addresses below for more information.
CT1487M
–
–
–
–
±15 V Single Unit Plug-in Package
±15 V Single Unit Plug-in Package
±15 V Single Unit Flat Pack
CT1589M
–
–
–
–
±12 V Single Unit Plug-in Package
±12 V Single Unit Plug-in Package
±12 V Single Unit Flat Pack
CT1487MP
CT1487MFP
CT1487MI
CT1589MP
CT1589MFP
CT1589MI
±15 V Single Unit Plug-in Package,
±12 V Single Unit Plug-in Package,
Inverted Receiver Data Outputs
Inverted Receiver Data Outputs
CT1487MIFP
–
±15 V Single Unit Flat Pack,
Inverted Receiver Data Outputs
CT1589MIFP
–
±12 V Single Unit Flat Pack,
Inverted Receiver Data Outputs
CT1487D
CT1487DI
–
–
±15 V Dual Unit Plug-in Package
CT1589D
CT1589DI
–
–
±12 V Dual Unit Plug-in Package
±15 V Dual Unit Plug-in Package,
Inverted Receiver Data Outputs
±12 V Dual Unit Plug-in Package,
Inverted Receiver Data Outputs
CT1487DFP
CT1487DIFP
–
–
±15 V Dual Unit Flat Pack
CT1589DFP
CT1589DIFP
–
–
±12 V Dual Unit Flat Pack
±15 V Dual Unit Flat Pack,
Inverted Receiver Data Outputs
±12 V Dual Unit Flat Pack,
Inverted Receiver Data Outputs
HEADQUARTERS OPERATIONS
CUSTOMER SERVICE CENTRES
• FRANCE & BENELUX Les Ulis Cedex Tel: (1) 64 46 23 45 Fax: (1) 64 46 06 07
• GERMANY Munich Tel: (089) 3609 06-0 Fax: (089) 3609 06-55
• ITALY Milan Tel: (02) 66040867 Fax: (02) 66040993
GEC PLESSEY SEMICONDUCTORS
Cheney Manor, Swindon,
Wiltshire, SN2 2QW, United Kingdom.
Tel: (0793) 518000
• JAPAN Tokyo Tel: (03) 5276-5501 Fax: (03) 5276-5510
• NORTH AMERICA Scotts Valley, USA Tel: (408) 438 2900 Fax: (408) 438 7023
• SOUTH EAST ASIA Singapore Tel: (65) 3827708 Fax: (65) 3828872
• SWEDEN Stockholm Tel: 46 8 702 97 70 Fax: 46 8 640 47 36
• TAIWAN, ROC Taipei Tel: 886 2 5461260 Fax: 886 2 7190260
• UK, EIRE, DENMARK, FINLAND & NORWAY Swindon, UK Tel: (0793) 518510
Fax: (0793) 518582
Fax: (0793) 518411
GEC PLESSEY SEMICONDUCTORS
P.O. Box 660017,
1500 Green Hills Road, Scotts Valley,
California 95067-0017,
United States of America.
Tel: (408) 438 2900
Fax: (408) 438 5576
These are supported by Agents and Distributors in major countries world-wide.
© GEC Plessey Semiconductors 1991 Publication No. 3122-1.2 October 1991
TECHNICAL DOCUMENTATION - NOT FOR RESALE. PRINTED IN UNITED KINGDOM.
This publication is issued to provide information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose nor form part of
any order or contract nor to be regarded as a representation relating to the products or services concerned. No warranty or guarantee express or implied is made regarding the
capability, performance or suitability of any product or service. The Company reserves the right to alter without prior knowledge the specification, design or price of any product
or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a
specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any
publication or data used is up to date and has not been superseded. These products are not suitable for use in any medical products whose failure to perform may result in
significant injury or death to the user. All products and materials are sold and services provided subject to the Company's conditions of sale, which are available on request.
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