5

SCD4462D Rev E 10/9/07

Aeroflex Plainview

ELECTRICAL CHARACTERISTICS – DRIVER SECTION con’t

OUTPUT CHARACTERISTICS (H009)

PARAMETER

CONDITION

SYMBOL

MIN

TYP

MAX

UNIT

Differential output level at point A-A’ on

Figure 9

(Pin 21 set at

16

21

24

Vp-p

Rise and fall times

(10% to 90% of p-p output)

200

-

300

nS

Output offset at point A-A’ on Figure 9, 2.5 µS

after midpoint crossing of the last bit

-

-

±265

mVpeak

Delay from 50% point of TX DATA or

TX DATA input to zero crossing of

differential signal (Note 1)

-

270

400

nS

OUTPUT CHARACTERISTICS (Macair & MIL-STD-1553/1760)

Differential output Level, Figure 11 Point B-B'

(Pin 21 set at

20

21

24

Vp-p

Output offset at point A-A on Figures 11 or 12,

2.5µS after midpoint crossing of the last bit

-

-

±90

mVpeak

Output rise / fall times (10% to 90% of p-p output)

200

250

300

nS

Delay from 50% point of TX DATA or TX DATA

input to zero crossing of differential output (Note 1)

-

270

400

nS

ELECTRICAL CHARACTERISTICS – RECEIVER SECTION (H009, MACAIR & MIL-STD-1553)

PARAMETER

CONDITION

SYMBOL

MIN

TYP

MAX

UNIT

Differential Input Impedance (Note 1)

f = 1MHz

20K

-

-

Ω

Differential Input Voltage Range

--

40

Vp-p

Input Common Mode Voltage Range

Note 1

10

-

-

Vp-p

Common Mode Rejection Ratio

Point A-A on

Figure 12

CMRR

40

-

-

dB

STROBE CHARACTERISTICS (LOGIC "0" INHIBITS OUTPUT)

"0" Input Current

-

-0.2

-0.4

mA

"1" Input Current

-1

+40

µA

"0" Input Voltage

--

0.7

V

"1" Input Voltage

2.0

-

-

V

Strobe Delay (turn-on or turn-off)

-

-

150

nS

THRESHOLD CHARACTERISTICS (SINEWAVE INPUT )

Internal Threshold Voltage

100K - 1MHz

1.2

1.8

2.3

Vp-p

MacAir/1553 – Figure 11 or 12, Point A - A'

0.70

0.90

1.10

Vp-p

OUTPUT CHARACTERISTICS, RX DATA AND RX DATA

"1" State

2.5

3.6

-

V

"0" State

-

0.35

0.5

V

Delay, (average) from differential input zero

crossings to RX DATA and RX DATA output

50% points

-

275

450

nS