Document
CT2512 / CT2513 / CT2510 / CT2511 Dual Redundant Remote Terminal
FOR MIL-STD-1553B
Features
• CT2512 Replaces DDC BUS-65112 and BUS-65117 • CT2513 Replaces DDC BUS-65113 and BUS-65118 • CT2510 Replaces DDC BUS-65110 and BUS-65120 • CT2511 Replaces DDC BUS-65111 and BUS-65121 • Functions as a Complete Remote Terminal Unit • Supports 13 Mode Codes, Illegalization of Codes Allowed • Transfers Data with DMA Type Handshaking • Latched Outputs for Command Word and Word Count • 14 Bit Built-ln-Test Word Register • 4 Error Flag Outputs • Advanced Low Power VLSI Technology • Approved DESC SMD# 5962–87535
www.aeroflex.com/act1.htm
CIRCUIT TECHNOLOGY
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General Description
The CT2512 contains 2 transceivers, 2 encoder/decoders, bit processors and complete Remote Terminal (RT) logic. The device is constructed using Aeroflex advanced VLSI custom chip and hybrid technology. It functions as a complete dual redundant MIL-STD-1553B RT Unit supporting all 13 mode codes for dual redundant operation. The CT2512 is a pin-for-pin functional equivalent of the DDC BUS-65112/117 and performs parallel data transfers with a DMA type handshake. Multiple error flag outputs and host access to many of the RT Status Word bits are just some of the features that make this part ideal for many RT applications. The unit has an operating range of -55°C to + 125°C. Aeroflex is a MIL-PRF-38534 Certified Manufacturer. See "Ordering Information" (last sheet) for CT2513 / CT2510 / CT2511.
DATA BUS A DUAL TRANSCEIVER DATA BUS B
ENCODER/ DECODER
MIL-STD-1553B PROTOCOL AND BIT I/O INTERFACE
DB0-DB15 A0-A11 ERROR FLAG TIMING FLAGS STATUS BITS
ENCODER/ DECODER
PROCESSING LOGIC
Figure 1 – Functional Block Diagram
eroflex Circuit Technology – Data Bus Modules For The Future © SCDCT2512 REV C 8/14/01
Absolute Maximum Ratings
Parameter
Power Supply Voltage (VCC) (Pins 18, 76) Power Supply Voltage (VEE) (Pins 38, 57) Power Supply Voltage (VCCL) (Pins 37, 58 / 51) Receiver Differential Input (Pins 20, 59 / 74, 36) Receiver Input Voltage (Pins 20, 59 / 74, 36) Driver Output Current (Pins 56, 17 / 39, 77) Transmission Duty Cycle at TC = 125°C Operating Case Temperature Range (TC)
Limits
-0.3 to +18.0
Units
Volts
+0.3 to -18.0
Volts
-0.3 to +7.0
Volts
±20 (40Vp-p)
Volts
±15
Volts
+200
mA
100 -55 to +125
% °C
Power and Thermal Data (Transceiver and Logic Section)
Parameter/Conditions
Power Supply Voltage
Symbol
VCC VEE VCCL
Min
14.25 -14.25 4.5
Typ
15 -15 5
Max
15.75 -15.75 5.5
Units
V V V
Power Dissipation of most critical (hottest) device in hybrid during continuous transmission (100% Duty Cycle) Thermal Resistance, most critical device Junction to case temperaturer rise of most critical device at 100% duty cycle Total supply current standby mode, or transmitting at less than 1% duty cycle (e.g. 20us of transmission every 2ms or longer interval) Total supply curren transmitting at 1Mhz into a 35-ohm load at point A in Figure 2
PC
Note 1
350
mW
ØJC TJC ICC IEE ICC1 ICC @ 25% ICC @ 100% Note 2 Note 2 Note 3 Note 3
60 60 30 50 90 70 200 80 44 70 130 100 260
°C/W °C mA mA mA mA mA
Note 1: Decreases linearly to zero at zero duty cycle. Note 2: IEE limit does not change with mode of operation or duty cycle. Note 3: Decreases linearly to applicable "standby" values at zero duty cycle.
Aeroflex Circuit Technology
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SCDCT2512 REV C 8/14/01 Plainview NY (516) 694-6700
Electrical Characteristics (Receiver Section)
Parameter/Conditions
Differential input impedance DC to 1MHz Differential voltage range Input common mode voltage range Common mode rejection ratio (from point A, Figure 1) Threshold characteristics (Sine wave at 1MHz) Note: Threshold voltages refer to point A, Figure 2.
Symbol
ZIN VDIR VICR CMMR
Min
9K ±20V ±10V 40
Typ
Max
Units
V Vpeak Vpeak dB
Vth
0.8
1.1
Vp-p
Electrical Characteristics (Transmitter Section)
Parameter/Conditions
Differential output level at point B, Figure 1 (145 ohm load)
Symbol
VO
Min
26
Typ
28
Max
35
Units
Vp-p
Rise and Fall times (10% to 90% of p-p output) Output offset at point A in Figure 2 (35-ohm load) 2.5us after mid-bit crossing of parity bit of last word of a 660us message Differential output noise
Tr
100
160
300
nS
VOS
±20
±90
mV Vpeak
VNOI
10
mV pp
Aeroflex Circuit Technology
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SCDCT2512 REV C 8/14/01 Plainview NY (516) 694-6700
Logic Characteristics
Symbol
VIH VIL IIL IIH IIL IIH VOH VOL
Parameter
Input "1" Input "0" Input l Input l Input l Input l Output "1" Output "0"
Min
2.4
Typ
Max
0.7
Units
VDC VDC µA µA µA µA VDC VDC
Conditions
-100 -20 -20 2.7
-650 -650 +20 +20 0.4
Note 1A Note 1B Note 2A Note 1B Note 3A/4A Note 3B/4B
Note 1:
For INPUT pins 12,13,14,15, 53, 54, 55. VCC= 5.5V A. @ VIL = 0.4V B. @ VIH = 2.4V All remaining INPUTS other than in Note 1. VCC= 5.5V A. @ VIL = 0.4V B. @ VIH = 2.4V For OUTPUT pins 4 through 11 and 43 through 50. A. @ VCC = 4.5V and IOH = 3mA B. @ VCC = 2.4V an.