MIC3000_07 datasheet(10/68 Pages) MICREL

10 / 68 page

MIC3000

Micrel

M9999-101204

October 2004

Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Units

Control and Status I/O Timing, TXFAULT, TXDISABLE, RSIN, RSOUT, and RXLOS

tOFF

TXDISABLE Assert Time

From input asserted to optical output at

µs

10% of nominal, CCOMP = 10nF.

tON

TXDISABLE De-assert Time

From input de-asserted to optical output

at 90% of nominal, CCOMP = 10nF.

tINIT

Initialization Time

From power on or transmitter enabled to

300

optical output at 90% of nominal and

TX_FAULT de-asserted.(4)

tINIT2

Power-on Initialization Time

From power on to APC loop enabled.

200

tFAULT

TXFAULT Assert Time

From fault condition to TXFAULT

µs

assertion.(4)

tRESET

Fault Reset Time

Length of time TXDISABLE must be

µs

asserted to reset fault condition.

tLOSS_ON

RXLOS Assert Time

From loss of signal to RXLOS asserted.

µs

tLOSS_OFF

RXLOS De-assert Time

From signal acquisition to LOS

100

µs

de-asserted.

tDATA

Analog Parameter Data Ready

From power on to valid analog parameter

400

data available.(4)

tPROP_IN

TXFAULT, TXDISABLE, RXLOS,

Time from input change to corresponding

µs

RSIN Input Propagation Time

internal register bit set or cleared.(4)

tPROP_OUT

TXFAULT, RSOUT, /INT Output

From an internal register bit set or cleared

µs

Propagation Time

to corresponding output change.(4)

Fault Comparators

FLTTMR

Fault Suppression Timer Clock

Note 4

0.475

0.5

0.525

Period

Accuracy

-3

%F.S.

tREJECT

Glitch Rejection

Maximum length pulse that will not cause

4.5

µs

output to change state.(4)

VSAT

Saturation Detection Threshold

High level

%VDDA

Low level

%VDDA

Power-On Hour Meter

Timebase Accuracy

0°C - TA - +70°C(4)

–5

–40°C - TA - +105°C

+10

–10

Resolution

Note 4

hours

Non-Volatile (FLASH) Memory

tWR

Write Cycle Time(8)

From STOP of a one to four-byte write

transaction.(4)

Data Retention

100

years

Endurance

Minimum Permitted Number Write

10,000

cycles

Cycles

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