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C-127-1250-FDFB-SLC2 Datasheet, PDF (4/7 Pages) Source Photonics, Inc. – 1.25 Gbps Single Mode SFF LC Transceiver | |||
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1.25 Gbps Single Mode SFF LC Transceiver
C-1xx-1250(C)-FDFB-SLCx
Recommended Circuit Schematic
C-1xx-1250-FDFB-SLCx
TERMINATE AT
TRANSCEIVER INPUTS
100�
Z=50�
Z=50�
PHY DEVICE
Vcc(+3.3V)
TD-
TD+
130� 130�
LVPECL
10 9 8 7 6
Tx
Rx
12 3 4 5
1�H
C2
1�H
C1
130� 130�
NOTE:C1=C2=C3=100nF
Vcc(+3.3V)
C3 10�F
Tx Disable
LVTTL
Z=50�
Z=50�
Z=50�
Vcc(+3.3V)
RD+
100�
RD-
Vcc(+3.3V)
LVPECL
130�
SD
82�
LVPECL
TERMINATE AT
DEVICE INPUTS
C-1xx-1250C-FDFB-SLCx
TERMINATE AT
TRANSCEIVER INPUTS
100�
Z=50�
Z=50�
PHY DEVICE
Vcc(+3.3V)
TD-
TD+
130� 130�
LVPECL
10 9 8 7 6
Tx
Rx
12 3 4 5
1�H
C2
1�H
C1
Vcc(+3.3V)
C3 10�F
Tx Disable
LVTTL
Z=50�
Z=50�
Vcc(+3.3V)
RD+
100�
RD-
Vcc(+3.3V)
LVPECL
NOTE:C1=C2=C3=100nF
Z=50�
SD
LVTTL
TERMINATE AT
DEVICE INPUTS
The split-loaded terminations for ECL signals need to be located at the input of devices receiving those ECL signals.
The power supply ï¬ltering is required for good EMI performance. Use short tracks from the inductor L1/L2 to the module Rx Vcc and Tx Vcc.
A GND plane under the module is required for good EMI and sensitivity performance.
LUMINENTOIC.COM
20550 Nordhoff St. ⢠Chatsworth, CA 91311 ⢠tel: 818.773.9044 ⢠fax: 818.576.9486
9F, No 81, Shui Lee Rd. ⢠Hsinchu, Taiwan, R.O.C. ⢠tel: 886.3.5169222 ⢠fax: 886.3.5169213
4
LUMNDS771-Nov2707
Rev A.1
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