CT1775 Datasheet, PDF (7/14 Pages) Aeroflex Circuit Technology – CT1775 Universal MacAir/1553 Dumb RTU Hybrid

19
ESC OUT
START CYCLE
ENC ENABLE
0
1
STROBE SYNC
110ns MAX
180ns MIN
2
3
4
STROBE DATA
SYNC SELECT
SEND DATA
(LOAD DATA)
LATCH DATA
TRI-STATE DATA
DATA SELECT
190ns MIN
240ns MIN
DON’T CARE
DON’T CARE
DON’T CARE
80ns MAX
80ns MIN
130ns MIN
80ns MIN
100ns MIN
70ns MIN
130ns MIN
FIGURE 4 – ENCODER DETAIL TIMING
SCDCT1775 Rev B
5
6
7
DSC OUT
TAKE DATA
100ns MAX
COMM / DATA SYNC PREVIOUS
150ns MAX
CURRENT SYNC
SERIAL DATA OUT
15
14
DATA SELECT
TRI-STATE DATA
VALID WORD
MODE CODE
RT ENABLE
DON’T CARE
BROADCAST
VAL CMD WD
0
1
2
100ns MAX
CURRENT
0
50ns MIN
50ns MAX
CURRENT DATA
100ns MAX
60ns MAX
60ns MAX
100ns MAX
110ns MAX
FIGURE 5 – DECODER DETAIL TIMING
7