SFP Laser Controller and
Diagnostic IC
Functional Diagrams (continued)
V CC
TX-D
TXDC
R PU
TXDS
V CC
HTXP flag
C
C
R
Q
DISABLE DACs
FPOL
FETG
HTXP ENABLE
D
S
Q
HBAL flag
HBAL ENABLE
MINT
INV
TX-F
HBAL flag
LTXP flag
HTXP flag
LTXP flag
LTXP ENABLE
FAULT RESET TIMER
(130ms)
HBWA flag
INTX-F
OUT
IN
OUT
Figure 12. Block Diagram, Shutdown
INV1
IN1C
IN1
IN1S
SELC
RSEL
SELS
LOSC
INVL
1
INLOS
MUX
0
LOS flag
Figure 13. Block Diagram, Outputs
IN
RX-LOS
OUT1
RSELOUT
POWER-ON RESET
____________________________________________________________________
15
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