SP211H Ver la hoja de datos (PDF) - Signal Processing Technologies

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SP211H

+5V High–Speed RS-232 Transceivers

Signal Processing Technologies 

POWER UP WITH SD ACTIVE (Charge pump in shutdown mode)

t0 (POWERUP)

+5V

ROUT

0V

ENABLE

SD

DISABLE

tWAIT

DATA VALID

POWER UP WITH SD DISABLED (Charge pump in active mode)

t0 (POWERUP)

+5V

ROUT

0V

ENABLE

SD

DATA VALID

tENABLE

DISABLE

EXERCISING WAKE–UP FEATURE

t0 (POWERUP)

+5V

ROUT

0V

DATA VALID

DATA VALID

tENABLE

tENABLE

DATA VALID

tENABLE

SD

DISABLE

ENABLE

tWAIT

VCC = +5V ±10%; TA = 25°C

tWAIT = 2ms typical, 3ms maximum

tENABLE = 1ms typical, 2ms maximum

DISABLE

Figure 6. Wake–Up Timing

TGoddard/SP207H/9614R0

SP207H/SP211H High–Speed Transceivers

8

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