1340-Type Lightwave Receiver
Data Sheet
January 2000
Recommended User Interfaces
(continued)
+5.0 V
2.2 µF
†
FERRITE
BEAD
‡
0.1 µF
11
0.1 µF
82 •
82 •
0.1 µF
FLAG*
12
1340
14
9
DATA
†
FLAG*
7
DATA
124 •
124 •
†
* TTL (CMOS) compatible level.
† DATA and DATA are 50
Ω
impedance transmission lines; both lines can be ac- or dc-coupled into the next device.
‡ Fair-Rite Products Corporation part number 2743037447 or equivalent.
1-500(C).c
Figure 4. Interfacing to the 622 Mbits/s and 1.25 Gbits/s 1340 Receivers
+5 V
V
EE
2.2 µF †
FERRITE
BEAD ‡
0.1 µF
0.1 µF
0.1 µF
0.1 µF
0.1 µF
11
82 •
82 •
12
1340
9*
0.1 µF
0.1 µF
124 •
18
V
EE
16
D
Q
11
124 •
166 •
166 •
0.1 µF
FLAG*
DATA †
FLAG*
124 •
124 •
14
7*
0.1 µF
17
D
100314
Q
10
DATA †
100 •
250 •
250 •
100 •
82 •
19
–
0.1 µF
+
10 µF
6, 7
82 •
V
BB
1-572(C).b
* 50
Ω
to (V
CC
– 2) V.
† 50
Ω
to –2 V. DATA and DATA are 50
Ω
impedance transmission lines.
‡ Fair-Rite Products Corporation part number 2743037447 or equivalent.
Figure 5. Interfacing the 155 Mbits/s 1340 Receiver to a True ECL Circuit
6
Agere Systems Inc.
AGERE [ AGERE SYSTEMS ]
