lxt6155 Intel Corporation, lxt6155 Datasheet - Page 34

• Manufacturer Part Number: lxt6155
• Description: 155 Mbps Sdh/sonet/atm Transceiver
• Manufacturer: Intel Corporation

34
LXT6155 — 155 Mbps SDH/SONET/ATM Transceiver
330 nF
68nF
15k,
1%
Figure 16. 3.3 V LVPECL to 3.3 V LVPECL Interface
NC
47
49
48
4
1) R1,R2,R5,R6 = 127 Ohms, 1%
2) R3,R4,R7,R8 = 87.5 Ohms 1%
3) Transmission lines should be 50 ohm,
controlled impedance strip lines. Keep length
as short as possible.
4) Vcc = 3.3V for both resistor network, and
Fiber Optic module.
RXISH
VBIAS
TXISH
ATST
LXT6155
LXT6155
TRING1
RRING
TTIP1
RTIP
51
63
52
62
R3
R1
Vcc
R2
R4
R5
R7
Vcc
impedance
controlled
50 ohm
R6
R8
TD*
RD
RD*
TD
3.3V Fiber Optic module
Datasheet