Aeroflex CT1469-2 Ct1469-2 mil-std-1397 type e 10mhz transceiver Datasheet

CT1469-2
MIL-STD-1397 Type E 10MHz Transceiver
Features
CIRCUIT TECHNOLOGY
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Low Level ±0.65V output
Optional transformer isolation
Internally set threshold
Operates with ±5 volt supply
Matched to 50 ohms system impedance power on or off
Bipolar construction for radiation resistance
Power management
Interfaces directly to the CT1496-2 (Manchester Encoder)
and CT1508-2 (Manchester Decoder)
• MIL-PRF-38534 compliant devices available
www.aeroflex.com
A E RO
E
I NC .
ISO
9001
S
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EX L A
B
FL
RTIFIED
General Description
CT1469-2 is a hybrid microcircuit which incorporates a MIL-STD 1397 Type E 10MHz transceiver in
a single package. The transmitter section accepts 10MHZ serial Manchester encoded TTL NRZ data
from the encoder and transformer couples a bipolar ±0.65 volt (nominal) signal level to a 50 ohm
triaxial cable for transmission up to 1000 ft. The CT1469-2 receiver accepts a bipolar signal level
and outputs an NRZ TTL serial data or SIS / SOS signal to the decoder (CT1508-2). Aeroflex Circuit
Technology is a 80,000 square foot MIL-PRF-38534 certified facility in Plainview, N.Y.
Power
Conditioner
Drive 2
Linear
Amp
Xfmr Sec /
RX Data Input
TX Data Input
Xfmr Sec
Xfmr Primary /
TX Data Output
TX Inhibit
Xfmr Primary /
TX Data Output
TX Data Input
Xfmr Sec
Linear
Amp
Xfmr Sec /
RX Data Input
+5V
Drive 1
Level
Detector
RX Data
-5V
Receiver
Strobe
Digital and Analog
Gnd
Level
Detector
RX Data
Figure 1 – Block Diagram
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Introduction
The specification detailed herein encompasses a hybrid transceiver designed to meet
the requirements of STANAG 4153 and Type E requirements of MIL-STD-1397. The
transceiver is transformer coupled to the specified triaxial cable and is available
compliant to MIL-PRF 38534.
Electrical Requirements
See Figure 1 for block diagram. All input and output signals are manchester encoded.
The transformer is internal to the package with its use being optional.
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Absolute Maximum Ratings
Parameter
Rating
Units
Supply Voltage
Vcc
VEE
+0.5 to +7.0
-0.5 to -7.0
V
V
Input Voltage
Digital VIN(D)
Receiver VIN(R)
-0.5 to +5.5
±2
V
V
2.0
W
Storage Temperature Range TSTG
-60 to +150
°C
Operating Case Temperature Range TC
-55 to +100
°C
Power Dissipation PD
DC Electrical Characteristics
(VCC = 5V ±10%, VEE = -5V ±10%, TC = -55 °C to +100°C, unless otherwise specified)
SYMBOL
PARAMETER
LIMIT
RX DATA (7), RX DATA (8)
VOH
Logic High Output Voltage
2.4V min @ IOH = -80µA, VCC = +4.5V,
VEE = -4.5V
VOL
Logic Low Output Voltage
0.4V max @ IOL = 3.2mA, VCC = +4.5V,
VEE = -4.5V
TX DATA INPUT (22), TX DATA INPUT (24) 1/
IIH
Logic High Input Current
50µA max @ VIH = 2.4V, VCC = +5.5V, VEE
= -5.5V
IIL
Logic Low Input Current
-2mA max @ VIL = 0.4V, VCC = +5.5V, VEE
= -5.5V
TX INHIBIT INPUT (23) 1/
IIH
Logic High Input Current
100µA max @ VIH = 2.4V, VCC = +5.5V,
VEE = -5.5V
IIL
Logic Low Input Current
-4mA max @ VIL = 0.4V, VCC = +5.5V, VEE
= -5.5V
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SCDCT1469 REV A 3/22/00 Plainview NY (516) 694-6700
DC Electrical Characteristics (con’t)
(VCC = 5V ±10%, VEE = -5V ±10%, TC = -55 °C to +100°C, unless otherwise specified)
SYMBOL
PARAMETER
LIMIT
RECEIVER STROBE (21) 1/
IIH
Logic High Input Current
40µA max @ VIH = 2.4V, VCC = +5.5V,
VEE = -5.5V
IIL
Logic Low Input Current
-3mA max @ VIL = 0.4V, VCC = +5.5V,
VEE = -5.5V
Power Supply Currents
STANDBY
ICC
IEE
VCC = +5.5V, VEE = -5.5V,
V23 = GND, V26 = -VEE
90mA max
70mA max
100% Transmission
ICC
IEE
VCC = +5.5V, VEE = -5.5V,
V23 = 2.4V min, fIN = 10MHZ
150mA max
125mA max
Notes:
1/ Maximum total capacitance loads allowable on these pins are:
DATA, DATA
TX INHIBIT
RX STROBE
10 pF max
15 pF max
45 pF max
Transmitter Timing Characteristics
(VCC = 5V ±10%, VEE = -5V ±10%, TC = -55 °C to +100°C, See Figure 2 and 3, unless otherwise specified)
Symbol
Parameter / Condition
Min
Max
Unit
VA
Output amplitude 1
0.45
0.8
V
T
Pulse period
97
103
nsec
TS
Width of 1ST positive half bit
45
65
nsec
TE
Width of last half bit
47
65
nsec
T/2
Half pulse period
47
53
nsec
TR
Pulse rise time
0.05
0.3
V/nsec
TF
Pulse fall time
0.05
0.3
V/nsec
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SCDCT1469 REV A 3/22/00 Plainview NY (516) 694-6700
Transmitter Timing Characteristics (con’t)
(VCC = 5V ±10%, VEE = -5V ±10%, TC = -55 °C to +100°C, See Figure 2 and 3, unless otherwise specified)
Symbol
Parameter / Condition
Min
Max
Unit
VS
Voltage overshoot
-
100
mV
VUS
Voltage undershoot
-
100
mV
TOS
Offset Voltage – 2T after last zero crossing
-
30
mV
TDTX
Delay from data input to transformer secondary
-
50
nsec
VN
Transmitter noise output with transmitter inhibited
-
35
mV
Zo
Output impedance
45
55
Ω
Inhibit
External-TTL low inhibits outputs
Internal-Equal input signals inhibit output
1. Pins 25 and 27 are not used for MIL-STD-1397 Type E nominal output signal levels.
Receiver Timing Characteristics
(VCC = 5V ±10%, VEE = -5V ±10%, TC = -55 °C to +100°C, See Figure 4, unless otherwise specified)
Symbol
Parameter / Condition
Min
Max
Unit
VIN
Input signal to receiver
±0.22
±0.88
VPK
VCM
Common Mode Rejection
DC to 1.0MHz
2.0MHZ to 20MHz
-
20
5
VPK-TO-PK
VPK-TO-PK
VT
Signal rejection
No response to single ended signals
-
10-9
±0.13
Volts-Seconds
VPK
TD1
Delay from 50% point of positive input
signal to 50% point of data output
-
30
nsec
TD2
Delay from 50% point of negative input
signal to 50% point of data output
-
30
nsec
VO
Output signal
Complementary TTL drive capability
of 2 TTL Loads
2.4
-
0.4
V
V
High
Low
TRSU
To input data, setup time Receiver Strobe
Enable
5
-
nsec
TRSH
Receiver Strobe hold time
20
-
nsec
Strobe
Strobe – Forces outputs low, logic low
inhibits reception
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Output Function Table
D
D
TX INH
OUTPUT
D=D
D=D
X
Inactive
X
X
0
Inactive
Active
Active
1
Active
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TX Input Requirements
TRISE, TFALL < 5 nsec
P = 100 ±2 nsec
PH = 50 ±2 nsec
P
TX Data Input
PH
TX Data Input
TX Inhibit
TDTX
2T
T
90% 90%
VA
TOS
TE
VS
TX Output
50%
TR
TF
VUS
TS
10%
T
10%
T/2
Figure 2 – Transmitter Logic Waveforms
Shaded Area is acceptable region of operation
100 ±3nsec
0.80
50 ±3nsec
VA Max
0.3 V/nSec
0.45
Volts
VB Min
0.30
0.05 V/nSec
0
-0.40
-0.45
-0.80
Figure 3 – Transmitter Waveshape Envelope
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SCDCT1469 REV A 3/22/00 Plainview NY (516) 694-6700
+.6 V
50%
Line to
Line Input
50%
0V
TD 1
50%
–.6 V
TD 1
Data
Output
T D2
VOH
50%
VOL
T D2
Data
Output
VOH
50%
VOL
TRSH
3V
Strobe
0V
TRSU
Figure 4 – Receiver Logic Waveforms
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SCDCT1469 REV A 3/22/00 Plainview NY (516) 694-6700
Pin
#’s
Functions
Pin
#’s
Functions
1
Vee (-5V)
16
XFMR PRIMARY / TX DATA OUTPUT
2
NC
17
XFMR SEC
3
NC
18
XFMR SEC / RX DATA INPUT
4
NC
19
NC
5
DIGITAL GND
20
NC
6
VCC (+5V)
21
RECEIVER STROBE
7
RX DATA OUTPUT
22
TX DATA INPUT
8
RX DATA OUTPUT
23
TX INHIBIT
9
NC
24
TX DATA INPUT
10
NC
25
DRIVE 2
11
NC
26
POWER CONDITIONER
12
CASE GND (ANALOG)
27
DRIVE 1
13
XFMR SEC / RX DATA INPUT
28
NC
14
XFMR SEC
29
NC
15
XFMR PRIMARY / TX DATA OUTPUT
30
NC
NC = No Connection
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CIRCUIT TECHNOLOGY
Ordering Information
Model Number
Package
CT1469-2
Flat Package
Flat Package Outline
1.590 MAX
1.400
(15 Leads / Side on .050 centers)
.175 MAX
1.015
MAX
Lead 1 & ESD
Designator
.450
MIN
.015 ±.003
.010 ±.002
.100 TYP
Specifications subject to change without notice.
Aeroflex Circuit Technology
35 South Service Road
Plainview New York 11803
Aeroflex Circuit Technology
Telephone: (516) 694-6700
FAX:
(516) 694-6715
Toll Free Inquiries: 1-(800)THE-1553
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