TFDT4000
Edition January 7, 1996
Optoelectronic characteristics
Tamb = 25°C, Vcc=5V unless otherwise noted.
Parameter
Test condition
Symbol
MIN
TYP
MAX
Unit Remark
Receiver, cont.
Rise time @load=
C=15pF, R=2.2k
tr
tf
20
20
200
200
20
ns
ns
µs
Fall time @load=
C=15pF, R=2.2k
Rxd signal electrical
output pulse width
2.4 kBit/s, input
pulse length
tp
1.41
1.41µs to 3/16 of
bit length
Rxd signal electrical
output pulse width
115.2 kBit/s,
input pulse
length 1.41µs to
3/16 of bit length
tp
1.41
0.8
8
µs
Rxd signal electrical
output pulse width
500 kHz, duty
cycle 50%
tp
1
1
1.2
2
µs
µs
Vcc = 5 V only
Output delay time
(Rxd)
Output level =
tdl
Delay of leading edge
of output signal
related to leading
edge of optical input
signal
0.5*Vcc
@
2
E =0.040 W/m
e
Jitter, leading edge of
output signal
Over a period of
10bit, 115.2 kBd
tj
2
µs
µs
Output delay time
(Rxd)
Output level =
0.5*Vcc
tdt
6.5
Delay of trailing edge
of output signal
related to trailing edge
of optical input signal
Latency
tL
100
800
µs
Recovery from
last transmitted
pulse to
1.1 threshold
*
sensitivity
Transmitter
Driver current
IRED
Current limiting
resistor in series
to IRED:
Id
0.3
0.5
A
Id can be adjusted by
variation of RS, see
appl. hint page 6
R = 8.2 W
S
@ 5 Vcc2=5V
Logic Low Transmitter
Input Voltage
V
(Txd)
(Txd)
0
0.8
Vcc
V
V
IL
Logic High Transmitter
Input Voltage
V
2.4
IH
4
TEMIC [ TEMIC SEMICONDUCTORS ]
