DS1886T+T datasheet(11/92 Pages) MAXIM

Part #	DS1886T+T

Description	SFP and PON ONU Controller with Digital LDD Interface

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Manufacturer	MAXIM [Maxim Integrated Products]

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11 / 92 page

DS1886

SFP and PON ONU Controller

with Digital LDD Interface

11

DAC ELECTRICAL CHARACTERISTICS

(VCC = +2.97V to +3.63V, TA = -40NC to +95NC, unless otherwise noted.) (Note 1)

ANALOG VOLTAGE MONITORING CHARACTERISTICS

(VCC = +2.97V to +3.63V, TA = -40NC to +95NC, unless otherwise noted.) (Note 1)

DIGITAL THERMOMETER CHARACTERISTICS

(VCC = +2.97V to +3.63V, TA = -40NC to +95NC, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Delta-Sigma Input Clock

Frequency

fDS

2.1

MHz

Reference Voltage Input (REFIN)

VREFIN

Minimum 0.1µF to GND

2

VCC

V

Output Range

0

VREFIN

V

Output Resolution

See the Delta-Sigma Output and Reference

section for details (DAC FS[9:2] = FFh)

10

Bits

Output Impedance

RDS

VREFIN = 2.5V

45

100

I

Recovery After Power-Up

tINIT_DAC From VCC > VCC LO alarm or warning

See the Startup Timing

Characteristics table

ms

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

ADC Resolution

(Note 4)

13

Bits

INL

TA = +25NC

-3

+3

LSB

DNL

-1

+1

LSB

Update Rate for Temperature,

TXMON (TXB/TXP),

RSSIP-RSSIN, VCC

tRR

RSSIP-RSSIN requires only a coarse

conversion (Note 5)

30

ms

Update Rate for RSSIP-RSSIN

tR/R2

RSSIP-RSSIN requires a fine conversion

36

ms

Input/Supply Offset (TXMON,

RSSIP, RSSIN, VCC)

VOS

(Notes 5, 6)

-1

0

+1

LSB

Factory Setting Full Scale

TXMON and RSSIP-RSSIN coarse

(Notes 6, 7)

2.5

V

VCC (Note 7)

6.5536

RSSIP-RSSIN fine (Note 7)

312.5

µV

Temperature LSB Weighting

1/256

N

C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Thermometer Error

TERR

-40NC to +95NC, guaranteed by design

-3

+3

N

C

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