DS1875T+T&R Maxim Integrated Products, DS1875T+T&R Datasheet - Page 84
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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 D8h to F7h: EMPTY
Table 02h, Register F8h to F9h: MAN BIAS
Table 02h, Register FAh: MAN_CNTL
84
______________________________________________________________________________________
FAh
F8h
F9h
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
When BIAS EN (Table 02h, Register 80h) is written to 0, bit 0 of this byte controls the updates of the MAN BIAS
value to the BIAS output. The values of MAN BIAS should be written with a separate write command. Setting bit 0
to a 1 clocks the MAN BIAS value to the output DAC.
RESERVED
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
1.
2.
3.
BIT 7
When BIAS EN (Table 02h, Register 80h) is written to 0, writes to these bytes control the BIAS DAC.
RESERVED
BIT 7
Write the MAN BIAS value with a write command.
Set the MAN_CLK bit to a 1 with a separate write command.
Clear the MAN_CLK bit to a 0 with a separate write command.
2
7
RESERVED
RESERVED
2
6
00h
PW2
PW2 and BIAS EN = 1
Volatile
RESERVED
00h
PW2
PW2 and BIAS EN = 1
Volatile
2
2
12
5
RESERVED
2
2
11
4
RESERVED
2
2
10
3
RESERVED
2
2
9
2
RESERVED
2
2
8
1
MAN_CLK
BIT 0
BIT 0
2
2
7
0
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