DS1875T+T&R Maxim Integrated Products, DS1875T+T&R Datasheet - Page 78
DS1875T+T&R
Manufacturer Part Number
DS1875T+T&R
Description
IC SFP CTRLR/TRIPLEXER 38-TQFN
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1875TTR.pdf
(92 pages)
Specifications of DS1875T+T&R
Applications
Fiber Optics
Interface
I²C
Voltage - Supply
2.85 V ~ 3.9 V
Package / Case
*
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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PON Triplexer and SFP Controller
Table 02h, Register BCh: HTXP
Table 02h, Register BDh: LTXP
78
______________________________________________________________________________________
BCh
BDh
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
Fast comparison DAC threshold adjust for high TXP. This value is added to the APC DAC value recalled from
Table 04h. If the sum is greater than 0xFF, 0xFF is used. Comparisons greater than V
V
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
Fast-comparison DAC threshold adjust for low TXP. This value is subtracted from the APC DAC value recalled
from Table 04h. If the difference is less than 0x00, 0x00 is used. Comparisons less than V
against V
BMD
BIT 7
BIT 7
2
2
, create a TXP HI alarm. The same ranging applied to the APC DAC should be used here.
7
7
BMD
, create a TXP LO alarm. The same ranging applied to the APC DAC should be used here.
2
2
6
6
00h
PW2
PW2
Nonvolatile (SEE)
00h
PW2
PW2
Nonvolatile (SEE)
2
2
5
5
V
V
HTXP
LTXP
=
=
Full Scale
Full Scale
255
255
2
2
4
4
(
(
HTXP + APC DAC
APC DAC LTXP
2
2
3
3
)
)
2
2
2
2
HTXP
2
2
, compared against
1
1
LTXP
, compared
BIT 0
BIT 0
2
2
0
0
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