Figure 3 – Transmitter (TX) Output Wave form
Figure 4 – Transmitter (TX) Output offset
LAST BIT
t
f
*
90%
Magnified View
OUTPUT OFFSET
*
17V P-P MIN
24V P-P MAX
0 Volts
0 volts
OUTPUT OFFSET
*
10%
2.5 µsec
t
r
*
* Rise and fall times measured at point A-A’ in Fig 5
*Offset measured at point A-A’ in Fig 5
Figure 5 – Typical Transformer connection
Figure 6 – Power Dissipation vs. Duty Cycle
4.0
35Ω N1:N2
A
170Ω
A’
TX DATA OUT
RX DATA IN
RX DATA IN
Transformer turns ratio:
N1:N2 = 1:1
Use Aeroflex 25T1553-1
0
0
10
20
30
40
50
60
70
80
90 100
35Ω
POWER DISSIPATION
WATTS
3.5
3.0
2.5
2.0
1.5
1.0
0.5
(TYPICAL)
TX DATA OUT
DUTY CYCLE, PERCENT
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.
Aeroflex Circuit Technology
5
SCD4435 REV B 2/3/99 Plainview NY (516) 694-6700
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
