Optoway
RECOMMENDED CIRCUIT SCHEMATIC
1) Recommended DC Coupled Interface Circuit
PHY DEVICE
Vcc3.3V
BTRS-5940G
4
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MICROSTRIP1
terminate in transceiver inputs
100R
Z=50R
MICROSTRIP2
Z=5OR
L1
10
9
8
7
6
1uH
C1
TD-
TD+
TDis
Veet
Vcct
10nF
U1
SFF2X5
Veer
Vccr
SD
RD-
RD+
C2
10uF
C5
10nF
L2
1uH
C6
10uF
R3
130R
Vcc3.3V
R4
130R
TD-
LVPECL
TD+
TDis(LVTTL)
C3
1
2
3
4
5
10nF
C4
Terminate at device input
10uF
RD+
Vcc3.3V
MICROSTRIP3
Z=50R
MICROSTRIP4
Z=5OR
R1
150R
R2
150R
R5
100R
LVPECL
RD-
Vcc3.3V
R6
130R
SD
R7
82R
2) Recommended AC Coupled Interface Circuit
Terminate in Tranceiver inputs
Vcc3.3V
PHY DEVICE
R8
82R
R9
82R
R10
130R
R11
130R
Vcc3.3V
C7
100nF
C8
100nF
MICROSTRIP5
Z=50R
MICROSTRIP6
Z=5OR
R14
130R
Vcc3.3V
R15
130R
TD-
LVPECL
TD+
TDis(LVTTL)
L3
10
9
8
7
6
1uH
C9
TD-
TD+
TDis
Veet
Vcct
10nF
U2
SFF2X5
Veer
Vccr
SD
RD-
RD+
C10
10uF
L4
1uH
C15
10nF
C16
10uF
Vcc3.3V
C11
1
2
3
4
5
10nF
C12
10uF
R16
130R
RD+
Vcc3.3V
Vcc3.3V
C13
100nF
C14
100nF
R12
150R
R13
150R
MICROSTRIP7
Z=50R
MICROSTRIP8
Z=5OR
Vcc3.3V
R17
82R
R18
130R
RD-
LVPECL
R19
82R
R20
130R
SD
R21
82R
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OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
10/1/2005 V3.0
OPTOWAY [ OPTOWAY TECHNOLOGY INC ]
