參數(shù)資料
型號(hào)： BU-65142D2-450L
廠商： DATA DEVICE CORP
元件分類： 微控制器/微處理器
英文描述： 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQIP78
封裝： 45.70 X 53.30 MM, 5.30 MM HEIGHT, CERAMIC, QIP-78
文件頁數(shù)： 26/28頁
文件大?。?/td> 264K
代理商： BU-65142D2-450L
7
Data Device Corporation
www.ddc-web.com
BU-65142 SERIES
V-01/03-0
FIGURE 3. BUILT-IN-TEST (BIT) WORD REGISTER
DATA SYNC
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
P
CHANNEL A/B - TRANSMITTER TIMEOUT
HANDSHAKE FAILURE
CHANNEL A/B - LOOP TEST FAILURE
MODE CODE - T/R ERROR
{
ILLEGAL OR RESERVED MODE CODE
ILLEGAL USE OF BROADCAST WITH MODE CODE
MESSAGE SERVICING ABORTED DUE TO LOW WORD COUNT
MESSAGE SERVICING ABORTED DUE TO HIGH WORD COUNT
NON-MODE BROADCAST COMMAND TO TRANSMIT
ALWAYS ZERO
CHANNEL B - TRANSMITTER TIMEOUT
CHANNEL B - LOOP TEST FAILURE
CHANNEL B - TRANSMITTER SHUTDOWN
CHANNEL A - LOOP TEST FAILURE
CHANNEL A - TRANSMITTER SHUTDOWN
CHANNEL A - TRANSMITTER TIMEOUT
1. BITS 3-7 ARE CLEARED IN THE BEGINNING OF EACH NEW MESSAGE AND UPDATED AT THE END OF THE MESSAGE.
THEY ONLY REFLECT THE PRESENT COMMAND WORD.
2. BITS 0-2 AND 10-13 ARE LATCHED AND ONLY CLEARED BY A MODE RESET COMMAND OR A MASTER RESET (RESET).
NOTES
3. BITS 8 AND 9 ARE SET ONLY BY THE MODE COMMAND FOR "TRANSMITTER SHUTDOWN" AND ARE CLEARED BY THE MODE COMMAND
FOR "OVERRIDE TRANSMITTER SHUTDOWN" OR "RESET REMOTE TERMINAL". BITS 8 AND 9 ARE ALSO CLEARED BY RESET.
{
NOTE:
The B-2204, B-2388, and 2344 transformers have a slightly different turns ratio on the direct coupled taps than the turns ratio of the BU-
29854 direct-coupled taps. They do, however, have the same transformer coupled ratios. For transformer coupled applications, either transformer
may be used. The transceiver in the BU-65142D2, and BU-65142F2 was designed to work with a 1:0.83 ratio for direct-coupled applications. For
direct-coupled applications, the 1:0.83 turns ratio is recommended, but the 1.25:1 may be used. The 1.25:1 turns ratio will result in a slightly lower
transmitter amplitude (approximately 3.6% lower) and a slight shift in the RT’s receiver threshold.
TABLE 5 ISOLATION TRANSFORMER GUIDE
B-2388, DESC
M21038/27 -13,
B-2334, DESC
M21038/27 -18
BUS-29854
1:0.83
SURFACE
MOUNT
B-2387, B-2343,
DESC
M21038/27 -12,
M21038/27 -17
LPB-5002
LPB-5009
LPB-6002
LPB-6009
LPB-5001
LPB-5008
LPB-6001
LPB-6008
RECOMMENDED XFORMER
PLUG-IN
BUS-25679,
B-2203,
DESC
M21038/27-02
B-2204,DESC
M21038/27-03
XFORMER
COUPLED
2:1
1:0.67
1.25:1
(See Note)
BU-65142D2
BU-65142F2
1.41:1
BU-65142D1
BU-65142F1
DIRECT
COUPLED
RT PART
NUMBER
TURNS RATIO
BU-65142D3
BU-65142F3
1:2.5
(See
Note)
1:1.79
See Table 4
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