Aeroflex Circuit Technology

SCD4435 REV B 2/3/99 Plainview NY (516) 694-6700

4

Electrical Characteristics, Receiver Section

Parameter

Condition

Symbol

Min

Typ

Max

Unit

Differential Input Impedance (Note 1)

f= 1MHz

20K

Ω

Differential Input Voltage Range

40

V p-p

Input Common Mode Voltage Range

Note 1

10

V p-p

Common Mode Rejection Ratio

Point A-A on

Figure 5

CMRR

40

dB

Strobe Characteristics (Logic “O” inhibits output)

"0" Input Current

I

IL

-0.2

-0.4

mA

"1" Input Current

1.0

+40

µA

"0" Input Voltage

0.7

V

"1" Input Voltage

2.0

V

Strobe Delay (turn-on or turn-off)

Note 1.

150

nS

Threshold Characteristics (Sinewave input)

Internal Threshold Voltage

(Referred to the bus) Pins 6 and 11 to GND

For 4435-701 only – Pins 6 and 11 to GND

100KHz-1MHz

0.60

1.2

0.80

1.6

1.15

2.3

V P-P

V P-P

External Threshold

Pins 6 & 11 open, Pin 5 with a 5.9K resistor to GND, Pin 12

with a 6.65K resistor to GND, 1MHZ Sinewave applied to

point A-A

1.65

1.95

2.24

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

Power Data

Power Supply Currents (Power supplies set at +15V, -15V, +5V)

Duty Cycle

+V

-V

5V

TYP

MAX

TYP

MAX

TYP

MAX

Transmitter Standby

45mA

60mA

65mA

75mA

28mA

35mA

25% duty cycle

60mA

80mA

85mA

95mA

50% duty cycle

75mA

105mA

100mA

120mA

100% duty cycle

110mA

140mA

130mA

160mA

Recommended Power Supply Voltage Range

+V

+11.4 Volts to +15.75 Volts

-V

-11.4 Volts to -15.75 Volts

Logic

+4.5 Volts to +5.5 Volts