DS1875 查看數據表（PDF） - Maxim Integrated

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产品描述 (功能)

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DS1875

PON Triplexer and SFP Controller

Maxim Integrated 

PON Triplexer and SFP Controller

PWM CHARACTERISTICS

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

PARAMETER

PWM-DAC Full-Scale Voltage

PWM-DAC Resolution

SYMBOL

VPWM-DAC

CONDITIONS

VPWM-DAC Full-Scale Voltage

Error

TA = +25°C

VPWM-DAC Integral Nonlinearity

VPWM-DAC Differential

Nonlinearity

VPWM-DAC Temperature Drift

SW Output Impedance

SW Frequency Error

SW Duty Cycle

Error-Amplifier Source Current

Error-Amplifier Sink Current

COMP High-Voltage Clamp

COMP Low-Voltage Clamp

fSWER

DMAX

(Note 9)

Error-Amplifier

Transconductance

GM

Error-Amplifier Output

Impedance

REA

FB Pin Capacitance

MIN TYP MAX UNITS

1.25

V

8

Bits

1.25

%

-1

1

LSB

-1

1

LSB

-2

+2

%FS

20

-5

+7

%

89

90

91

%

-10

μA

+10

μA

2.1

V

0.8

V

425

μS

260

M

5

pF

TIMING CHARACTERISTICS (CONTROL LOOP AND QUICK TRIP)

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

PARAMETER

SYMBOL

CONDITIONS

MIN

First BMD Sample Following BEN

tFIRST (Note 10)

Remaining Updates During BEN tUPDATE (Note 10)

BEN High Time

tBEN:HIGH

400

BEN Low Time

tBEN:LOW

96

Output-Enable Time Following POA tINIT

10

BIAS and MOD Turn-Off Delay

tOFF

BIAS and MOD Turn-On Delay

tON

FETG Turn-On Delay

tFETG:ON

FETG Turn-Off Delay

tFETG:OFF

TYP MAX UNITS

ns

ns

ms

5

μs

5

μs

5

μs

5

μs

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