SCD4480-DFI Rev B 2/27/2013

3

Aeroflex Plainview

ELECTRICAL CHARACTERISTICS

– RECEIVER SECTION 1/ 2/

Parameter

Condition

Symbol

Min

Typ

Max

Unit

Differential Voltage Range

3/

Point A - A'

-

-

20

Common Mode Rejection Ratio

3/

-

45

-

-

dB

"0" Input Current

IIL

-

- 0.2

- 0.4

mA

"1" Input Current

IIH

-

1

+ 40

µA

"0" Input Voltage

-

VIL

-

-

0.7

V

"1" Input Voltage

-

VIH

2.0

-

-

V

Strobe Delay (turn-on or turn-off)

-

-

90

150

nS

THRESHOLD CHARACTERISTICS (Sinewave Input )

Internal Threshold Voltage, Point A-A'

Figure 5

1MHz

1.5

2.0

3.0

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

6/

50% points

-

300

450

nS

POWER SUPPLY CURRENT

Duty Cycle

Condition

Symbol

Typ

Max

Unit

Transmitter Standby

Point A - A'

12

30

32

20

50

40

50%

Figure 5

52

70

32

66

90

40

mA

100%

95

112

32

120

130

40

Notes:

2. All typical values are measured at +25°C.

3. Characteristics guaranteed by design, not production tested.

4. Power ON/OFF, measured 1MHz at Point A-A' Figure 4.

5. At point A-A' on Figure 4 or 5, 2.5µS after midpoint crossing of the parity bit of the last word.

6. This test is performed while the Transceiver is reading its own transmission. This condition is called "Wraparound". Standard TTL

loads applied to RX DATA Outputs.