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ACT15530CB 데이터시트 PDF




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부품번호 ACT15530CB 기능
기능 CMOS Manchester Encoder / Decoder
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ACT15530CB 데이터시트, 핀배열, 회로
ACT15530
CMOS Manchester Encoder / Decoder
Features
• MIL-STD-1553 Compatible
• 1.25 Megabit/sec Maximum Data Rate
CIRCUIT TECHNOLOGY
www.aeroflex.com
• Sync Identification and Lock-in
• Clock Recovery
• Manchester II Encode / Decode
• Separate Encoder and Decoder Sections
• Low Operating Power
• Military Temperature Range -55°C to +125°C
• Monolithic – Single Chip – Construction
Valid Word 1
Encoder Shift Clock 2
Take Data 3
Serial Data Out 4
Decoder Clock 5
Bipolar Zero In 6
Bipolar One In 7
Unipolar Data In 8
Decoder Shift Clock 9
Command/Data Sync 10
Decoder Reset 11
VSS 12
24 VDD
23 Encoder Clock
22 Send Clock In
21 Send Data
20 Sync Select
19 Encoder Enable
18 Serial Data In
17 Bipolar One Out
16 Output Inhibit
15 Bipolar Zero Out
14 ÷ 6 Out
13 Master Reset
Figure 1: Pin Assignments
(24-Pin DIP/Flat Package – See Figure 18 for LCC Pkg)
• Available in Commercial and Industrial Temperature Ranges
• Several Package and Quality Options (Consult Factory for Details)
• Direct Replacement for the Obsolete Harris HD15530-9/-2/8 and GEC Plessey Marconi
MA15530 / MAS15530 parts
1
General Description
The ACT15530 is a high performance CMOS integrated circuit used to implement MIL-STD-1553 and
similar Manchester II encoded, time division multiplexed, serial data protocols. The device is divided into
two independent sections, encoder and decoder, with a common master reset. The function of the encoder
section is to produce the sync pulse and parity bit, and encode the data bits. The decoder section recognizes
the sync pulse, decodes the data bits and checks for parity.
The ACT15530 is fully guaranteed to support the 1 MHz data rate of MIL-STD-1553 over the full
temperature and supply voltage ranges. The device interfaces with CMOS, TTL or N-Channel support
circuitry and operates from a standard 5 volt supply. The circuit can also be used in many party line digital
data communications applications where high reliability command and control signals are required. Using
Aeroflex transceivers products (4400 Series) the Bit Error Rates (BER) and Word Error Rates (WER) of
MIL-STD-1553 can be achieved (Refer to MIL-STD-1553 Multiplex Applications Handbook
"MIL-HDBK-1553").
eroflex Circuit Technology – Data Bus Modules For The Future © SCD15330 REV B 7/28/99




ACT15530CB pdf, 반도체, 판매, 대치품
DC Characteristics and Ratings
Absolute Maximum Ratings
Parameter
VDD
Input Voltage
Operating Temperature
Storage Temperature
Min Max
37
Vss - 0.3 VDD + 0.3V
-55 +125
-65 +150
Units
V
V
°C
°C
DC Characteristics
Figure 5: Absolute Maximum Ratings
Sym Parameter
Min
Typ
Max
Units
Test
Conditions
VIH Logic "1" Input Voltage
70%VDD
-
-
V
VIL Logic "0" Input Voltage
-
- 30%VDD
V
VIHC Logic "1" Input Voltage (Clock) VDD - 0.5V -
-
V
VILC Logic "0" Input Voltage (Clock)
-
- VSS + 0.5V
V
IIL Input Leakage Current
-1.0
+1.0
µA 0V < VIN < VDD
VOH Logic "1" Output Voltage
2.4 -
-
V IOH = -3 mA
VOL Logic "0" Output Voltage
- - 0.4 V IOL = 1.8 mA
IDDSB Standby Supply Current
- 0.5 2.0 mA Output Open
VIN = VDD =
5.5V
IDDOP Operating Supply Current
-
8.0 10.0
mA VDD = 5.5V,
f = 1MHz
CIN Input Capacitance
- 5.0 7.0
COUT Output Capacitance
- 8.0 10.0
VDD = 5V ±10%, over full operating temperature range.
pF
pF
Aeroflex Circuit Technology
Figure 6: DC Characteristics
4
SCD15530 REV B 7/28/99 Plainview NY (516) 694-6700

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ACT15530CB 전자부품, 판매, 대치품
Decoder Operation
The Decoder requires a single clock with a
frequency of 12 times the desired data rate
applied at the DECODER CLOCK input. The
Manchester II coded data can be presented to the
Decoder in one of two ways. The BIPOLAR
ONE and BIPOLAR ZERO inputs will accept
data from a comparator sensed transformer
coupled bus as specified in MIL-STD-1553. The
UNIPOLAR DATA input can only accept
non-inverted Manchester II coded data (e.g.from
BIPOLAR ZERO OUT of an Encoder).
The Decoder is free running and continuously
monitors its data input lines for a valid sync
character and two valid Manchester data bits to
start an output cycle.. When a valid sync is
recognized x, the type of sync is indicated on
COMMAND/DATA SYNC output. if the sync
character was a command sync, this output will
go high y and remain high for sixteen
DECODER SHIFT CLOCK periods z,
otherwise it will remain low. The TAKE DATA
output will go high and remain high y - z
while the Decoder is transmitting the decoded
data through SERIAL DATA OUT. The decoded
data available at SERIAL DATA OUT is in a
NRZ format. The DECODER SHIFT CLOCK is
provided so that the decoded bits can get shifted
into an external register on every low-to-high
transition of this clock y - z.
After all sixteen decoded bits have been
transmitted z the data is checked for odd parity.
A high on VALID WORD output { indicates a
successful reception of a word without any
Manchester or parity errors. At this time the
Decoder is looking for a new sync character to
start another output sequence.
At any time in the above sequence, a high
input on DECODER RESET during a
low-to-high transition of DECODER SHIFT
CLOCK will abort transmission and initialize
the Decoder to start looking for a new sync
character.
Timing
0 1 2 3 4 5 6 7 8 16 17 18 19
Decoder
Shift Clock
Bipolar
One In
Bipolar
Zero In
Take Data
Command/Data
Sync
Serial Data Out
1st 2nd 15 14 13 12 11 10
Half Half
Sync Sync 15 14 13 12 11 10
210 P
210 P
Undefined
15 14 13 12
43210
Valid Word
(From Previous
Reception)
12
34
Aeroflex Circuit Technology
Figure 10: Decoder Operation
7
SCD15530 REV B 7/28/99 Plainview NY (516) 694-6700

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