4
Optoway
BTRS-3720G
*********************************************************************************************************************************************************************
RECOMMENDED CIRCUIT SCHEMATIC
1) Recommended DC Coupled Interface Circuit
PHY DEVICE
Vcc3.3V
MICROSTRIP1
TD-
terminate in transceiver inputs
Z=50R
LVPECL
100R
MICROSTRIP2
TD+
Z=5OR
R3
130R
R4
130R
L1
TDis(LVTTL)
Vcc3.3V
1uH
C1
C2
C5
C6
10nF
10nF
10uF
10uF
L2
U1
SFF2X5
1uH
C3
C4
Terminate at device input
Vcc3.3V
10nF
10uF
RD+
R5
100R
LVPECL
MICROSTRIP3
Z=50R
MICROSTRIP4
RD-
Z=5OR
Vcc3.3V
R1
150R
R2
150R
R6
130R
SD
R7
82R
2) Recommended AC Coupled Interface Circuit
Vcc3.3V
Terminate in Tranceiver inputs
PHY DEVICE
Vcc3.3V
R8
82R
R9
82R
R10
130R
R11
130R
C7
MICROSTRIP5
TD-
Z=50R
MICROSTRIP6
100nF
C8
LVPECL
TD+
Z=5OR
100nF
R14
130R
R15
130R
L3
TDis(LVTTL)
Vcc3.3V
1uH
C9
10nF
C10
C15
10nF
C16
10uF
10uF
L4
1uH
U2
SFF2X5
Vcc3.3V
C11
10nF
C12
R16
130R
Vcc3.3V
10uF
RD+
Vcc3.3V
R17
82R
MICROSTRIP7
LVPECL
C13
100nF
C14
100nF
R18
130R
Z=50R
MICROSTRIP8
RD-
Z=5OR
Vcc3.3V
R19
82R
R12
150R
R13
150R
R20
130R
SD
R21
82R
*********************************************************************************************************************************************************************
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 10/1/2009 V4.0
OPTOWAY [ OPTOWAY TECHNOLOGY INC ]
