CYS25G0101DX_07 Datasheet, PDF (14/17 Pages) Cypress Semiconductor – SONET OC-48 Transceiver

CYS25G0101DX
Typical IO Terminations
Limiting Amp
OUT+
OUT–
0.1 µ F
0.1 µF
Figure 7. Serial Input Termination
CY S25G0101DX
Zo=50 Ω
IN+
100 Ω
IN–
Zo=50 Ω
CY S25G0101DX
OUT+
OUT–
0.1 µ F
0.1 µF
Figure 8. Serial Output termination ^[13]
Optical Module
Zo=50 Ω
IN+
100 Ω
IN–
Zo=50 Ω
CY S25G0101DX
HSTL
OUTPU
T
Figure 9. TXCLKO/ RXCLK Termination
FRAMER
Zo=50 Ω
VDDQ=1.5V
100 Ω
HSTL
INPUT
100 Ω
CY S25G0101DX
HSTL
OUTPU
T
Figure 10. RXD[15:0] Termination
FRAMER
Zo=50 Ω
HSTL
INPUT
VDDQ=3.3V
RXD[15; 0],
RXCLK,
TXCLKO _OUTPUT
CY S25G0101DX
Figure 11. LVPECL Compliant Output Termination
137 Ω
Zo=50 Ω
VDDQ=3.3V
80.6Ω
FRAMER
LVPECL INPUT
121 Ω
Note
13. Serial output of CYS25G0101DX is source matched to 50Ω transmission lines (100Ω differential transmission lines).
Document Number: 38-02009 Rev. *K
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