Data Sheet
January 2000
1340-Type Lightwave Receiver
Recommended User Interfaces (continued)
+5.0 V
†
‡
2.2 µF
0.1 µF
FERRITE
BEAD
0.1 µF
82 •
0.1 µF
11
12
14
82 •
9
7
DATA †
DATA †
FLAG*
FLAG*
1340
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
V
EE
+5 V
†
2.2 µF
FERRITE
‡
0.1 µF
0.1 µF
BEAD
0.1 µF
0.1 µF
124 •
0.1 µF
0.1 µF
166 •
124 •
0.1 µF
82 •
11
18
166 •
0.1 µF
82 •
V
EE
12
14
9*
7*
16
17
11
10
FLAG*
FLAG*
†
Q
Q
DATA
D
D
1340
0.1 µF
†
DATA
100314
100 •
124 •
124 •
250 •
250 •
100 •
10 µF
82 •
82 •
19
V
BB
–
+
0.1 µF
6, 7
1-572(C).b
* 50 Ω to (VCC – 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 toa True ECL Circuit
6
Agere Systems Inc.
AGERE [ AGERE SYSTEMS ]
