DS1876T+ Maxim Integrated Products, DS1876T+ Datasheet - Page 60

• Manufacturer Part Number: DS1876T+
• Description: IC CTRLR SFP DUAL LDD 28TQFN
• Manufacturer: Maxim Integrated Products
• Type: SFP Laser Controllerr

Specifications of DS1876T+

• Input Type: Logic
• Output Type: Logic
• Interface: I²C
• Current - Supply: 10mA
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SFP Controller with Dual LDD Interface
Table 02h, Register C6h: POLARITY
60
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C6h
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
A2h AND B2h MEMORY
MEMORY TYPE
RESERVED
BITS 7:4
BIT 7
BIT 3
BIT 2
BIT 1
BIT 0
RESERVED
MOD2P: MOD2 DAC polarity. The MOD2 DAC (Table 02h, Registers C8h–C9h) range is
000h–3FFh. A setting of 000h creates a pulse-density of zero and 3FFh creates a pulse-density of
1023/1024. This polarity bit allows the user to use GND or V
of MOD2 DAC is 000h; thus an application that needs V
inverted polarity.
0 = Normal polarity. A setting of 000h results in a pulse-density output of zero held at GND, and a
setting of 3FFh results in a pulsed-density output of 1023/1024 held mostly at V
1 = Inverted polarity. A setting of 000h results in a pulse-density output of zero held at V
a setting of 3FFh results in a pulsed-density output of 1023/1024 held mostly at GND.
APC2P: APC2 DAC polarity. The APC2 DAC (Table 02h, Registers CAh–CBh) range is 000h–3FFh.
A setting of 000h creates a pulse-density of zero, and 3FFh creates a pulse-density of 1023/1024.
This polarity bit allows the user to use GND or V
is 000h; thus an application that needs V
0 = Normal polarity. A setting of 000h results in a pulse-density output of zero held at GND, and a
setting of 3FFh results in a pulsed-density output of 1023/1024 held mostly at V
1 = Inverted polarity. A setting of 000h results in a pulse-density output of zero held at V
a setting of 3FFh results in a pulsed-density output of 1023/1024 held mostly at GND.
MOD1P: MOD1 DAC polarity. The MOD1 DAC (Table 02h, Registers CCh–CDh) range is
000h–3FFh. A setting of 000h creates a pulse-density of zero and 3FFh creates a pulse-density of
1023/1024. This polarity bit allows the user to use GND or V
of MOD1 DAC is 000h; thus an application that needs V
inverted polarity.
0 = Normal polarity. A setting of 000h results in a pulse-density output of zero held at GND, and a
setting of 3FFh results in a pulsed-density output of 1023/1024 held mostly at V
1 = Inverted polarity. A setting of 000h results in a pulse-density output of zero held at V
a setting of 3FFh results in a pulsed-density output of 1023/1024 held mostly at GND.
APC1P: APC1 DAC polarity. The APC1 DAC (Table 02h, Registers CEh–CFh) range is 000h–3FFh.
A setting of 000h creates a pulse-density of zero, and 3FFh creates a pulse-density of 1023/1024.
This polarity bit allows the user to use GND or V
DAC is 000h; thus an application that needs V
polarity.
0 = Normal polarity. A setting of 000h results in a pulse-density output of zero held at GND, and a
setting of 3FFh results in a pulsed-density output of 1023/1024 held mostly at V
1 = Inverted polarity. A setting of 000h results in a pulse-density output of zero held at V
a setting of 3FFh results in a pulsed-density output of 1023/1024 held mostly at GND.
RESERVED
0Fh
PW2 or (PW1 and RWTBL2) or (PW1 and RTBL2)
PW2 or (PW1 and RWTBL2)
Common A2h and B2h memory location
Nonvolatile (SEE)
RESERVED
RESERVED
REFIN
REFIN
to be the off state should use the inverted polarity.
MOD2P
REFIN
REFIN
to be the off state should use the inverted
as the reference. The power-on of APC DAC
as the reference. The power-on of APC1
REFIN
REFIN
REFIN
REFIN
APC2P
to be the off state should use the
to be the off state should use the
as the reference. The power-on
as the reference. The power-on
MOD1P
REFIN
REFIN
REFIN
REFIN
.
.
.
.
REFIN,
REFIN,
REFIN,
REFIN,
APC1P
BIT 0
and
and
and
and