ACT3492 datasheet(4/49 Pages) AEROFLEX

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Aeroflex Circuit Technology

SCD3492 REV B 6/26/01 Plainview NY (516) 694-6700

Analog Transceiver Characteristics (Over Full Temperature Range)

Parameter

Symbol

Test Conditions

Min

Max

Unit

Notes

Differential Output

Voltage

35 ohm load, Point A

70 ohm load, Point C

Figure 4

6.0

9.0

Vp-p

Differential Output

Noise

VON

Inhibited

Figure 4, Point A

mVp-p

Terminal Input

Impedance

ZIN

Transmitter off

1 Mhz sine wave

As measured from the 1553

bus (direct coupled).

Figure 4 Point A

2.0

Ω

Differential Offset

Voltage

Vos

35 ohm load, Point A

70 ohm load, Point C

Figure 4

±90

±250

1, 3, 5

1,5

Rise Time

35 or 70 ohm load

Figure 4, Points A,C

100

300

nSec

Fall Time

35 or 70 ohm load

Figure 4, Points A,C

100

300

nSec

Analog Transceiver Power Supply Characteristics (Each Channel)

Parameter

Symbol

Test Conditions

Min

Max

Unit

Notes

Supply Current

ICC1

Standby

1,2

ICC2

25% duty cycle

160

1,2

ICC3

50% duty cycle

290

1,2

ICC4

100% duty cycle

550

1,2,3

Notes:

VCC = 5.0 Volts dc +/-0.1 Volts dc unless otherwise specified.

All specifications and limits are for a single channel with no connections made to the other channel.

Parameters shall be tested as part of device initial characterization and after design and process

changes. Parameter shall be guaranteed to limits specified in above tables for all lots not specifically

tested.

Threshold determined by first no response to a receive 32 word command.

Measured 2.5µSec after the mid-bit zero crossing of the last parity bit of a 660µSec transmission.

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