DS1873 データシートの表示（PDF） - Maxim Integrated

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DS1873

SFP+ Controller with Analog LDD Interface

Maxim Integrated 

SFP+ Controller with Analog LDD Interface

MOD, BIAS, DAC1, DAC2 ELECTRICAL CHARACTERISTICS

(VCC = +2.85V to +3.9V, TA = -40°C to +95°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

Main Oscillator Frequency

fOSC

Delta-Sigma Input-Clock

Frequency

fDS

Reference Voltage Input (REFIN)

Output Range

VREFIN Minimum 0.1μF to GND

Output Resolution

Output Impedance

RDS

MIN TYP MAX UNITS

5

MHz

fOSC/2

MHz

2

VCC

V

0

VREFIN

V

10

Bits

35

100

ANALOG QUICK TRIP CHARACTERISTICS

(VCC = +2.85V to +3.9V, TA = -40°C to +95°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MON2, TXP HI, TXP LO Full-

Scale Voltage

VAPC

HBIAS LOS Full-Scale Voltage

MON2 Input Resistance

Resolution

Error

Integral Nonlinearity

TA = +25°C

Differential Nonlinearity

Temperature Drift

LOS Offset

MIN TYP MAX UNITS

2.5

V

1.25

V

35

50

65

k

8

Bits

±2

%FS

-1

+1

LSB

-1

+1

LSB

-2.5

+2.5 %FS

-5

mV

ANALOG VOLTAGE MONITORING CHARACTERISTICS

(VCC = +2.85V to +3.9V, TA = -40°C to +95°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

ADC Resolution

Input/Supply Accuracy

(MON1–MON4, VCC)

ACC At factory setting

Update Rate for Temperature,

MON1–MON4, and VCC

tRR

Input/Supply Offset

(MON1–MON4, VCC)

MON1–MON4

Factory Setting VCC

MON3 Fine

VOS (Note 3)

(Note 4)

MIN TYP MAX UNITS

13

Bits

0.25 0.50 %FS

64

75

ms

0

5

LSB

2.5

V

6.5536

312.5

μV

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