Aeroflex Circuit Technology

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

5

Notes:

1. Characteristics guaranteed by design, not production tested.

2. Measured at 1mHz at point A-A’, power on or off.

3. Specifications apply over the temperature range of -55°C to +125°C (case temperature)

unless otherwise noted.

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

Figure 3 – Transmitter (TX) Output Wave form

Figure 4 – Transmitter (TX) Output offset

Figure 5 – Typical Transformer connection

Figure 6 – Power Dissipation vs. Duty Cycle

0

10

20

30

40

50

60

70

80

90 100

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

DUTY CYCLE, PERCENT

17V P-P MIN

24V P-P MAX

90%

10%

* Rise and fall times measured at point A-A’ in Fig 5

0 Volts

OUTPUT OFFSET

*

OUTPUT OFFSET

*

LAST BIT

2.5 µsec

*Offset measured at point A-A’ in Fig 5

N1:N2

A

A’

TX DATA OUT

TX DATA OUT

RX DATA IN

RX DATA IN

35

Ω

35

Ω

Transformer turns ratio:

N1:N2 = 1:1

Use Aeroflex 25T1553-1

0 volts

Magnified View

170

Ω

(TYPICAL)