Fea tures
Low cost
CMOS and TTL compatible
No mounting hardware required
SMA and ST* style ports
Wave Solderable
Wide temperature range
De scrip tion
The OPF2412 is a low cost digital output
fiber optic receiver. The lensed optical
system keeps the receiver response
consistent for all fiber sizes which makes it
ideal for use on fibers as small as
50/125
m.
The OPF2412 contains a monolithic
photo-IC comprised of a photodetector
and DC amplifier driving an open collector
output Schottky transistor. The output
makes the OPF2412 compatible with TTL
and CMOS logic.
The receiver is designed to operate from a
single +5 V supply. A bypass capacitor
(0.1
F ceramic) should be connected
from Pin 2 (V
CC
) to Pin 3 (Common) of the
receiver.
*ST is a registered trademark of AT&T.
Ab so lute Maxi mum Rat ings (T
A
= 25
o
C un less oth er wise noted)
Stor age Tem pera ture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +85
o
C
Op er at ing Tem pera ture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +85
o
C
Lead Sol der ing Tem pera ture (for 10 sec.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
o
C
Sup ply Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7.0 V
Out put Cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA
Out put Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 18.0 V
Open Col lec tor Power Dis si pa tion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mW
Fan Out (TTL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
(1)
See Me chani cal Di men sions page 8-19 for Me chani cal Draw ings.
"T" suf fix = Threaded ST* pack age.
Prod uct Bul le tin OPF2412
De cem ber 1997
5MBd Fi ber Op tic Re ceiver
Types OPF2412, OPF2412T
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972) 323- 2200 Fax (972) 323- 2396
PIN
FUNCTION
1**
N.C.
2
V
CC
(5V)
3*
Common
4**
N.C.
5**
N.C.
6
Data
7*
Common
8**
N.C.
Bot tom View
* Pins 3 & 7 are electrically connected to
header.
** Pins 1,4,5 & 8 are electrically connected.
8-8
This component is susceptible to damage from electrostatic discharge (ESD). Normal
static precautions should be taken in handling and assembly of this component to
prevent ESD damage or degradation.
Types OPF2412 , OPF2412T
Op tek re serves the right to make changes at any time in or der to im prove de sign and to sup ply the best prod uct pos si ble.
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972)323- 2200 Fax (972)323- 2396
Elec tri cal Char ac ter is tics (T
A
= 25
o
C un less oth er wise noted)
4.75
V
CC
5.25, Fi ber Sizes
100 Mi crons, N.A.
0.35, BER
10
-9
Sym bol
Pa rame ter
Min
Typ Max Units
Test Con di tion
I
OH
High Level Output Current
5
250
A
V
O
= 18 V, P
R
< -40 dBm
V
OL
Low Level Output Voltage
0.4
0.5
V
I
O
= 8 mA, P
R
> -24 dBm
I
CCH
High Level Supply Current
3.5
6.3
mA
V
CC
= 5.25 V, P
R
< -40 dBm
I
CCL
Low Level supply Current
6.2
10
mA
V
CC
= 5.25 V, P
R
> -24 dBm
P
RH
Peak Input Power Level Logic HIGH
-40
dBm
p = 840 nm
(2)
0.1
W
P
RL
Peak Input Power Level Logic LOW
-25.4
-9.2
dBm
p = 840 nm, I
OL
= 8 mA
(2)
2.9
120
W
-24
-10
dBm
-40
o
C
T
A
+85
o
C
4.0
100
W
t
PLHR
Propagation Delay LOW to HIGH
65
ns
P
R
= -21 dBm, Data Rate = 5 MBd
t
PHLR
Propagation Delay HIGH to LOW
49
ns
Notes:
(1) 8 mA load (5 x 1.6 mA), R
L
= 560
.
(2) Measured at the end of 100/140
m fiber cable with a large area detector.
Ap pli ca tion Cir cuit
8-9
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