Rainbow-electronics MAX3345E Bedienungsanleitung PDF herunterladen (Seite 4)

Typical Operating Characteristics

= 5V, V

= 3.3V, T

= +25°C, unless otherwise noted.)

MAX3344E/MAX3345E

±15kV ESD-Protected USB Transceivers

in UCSP with USB Detect

4 _______________________________________________________________________________________

TIMING CHARACTERISTICS (continued)

= 4V to 5.5V, GND = 0, V

= 1.65V to 3.6V, ENUM = V

, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

= 5V, V

= 2.5V, T

= +25°C.) (Figures 2–6) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Rise Time D+/D- t

= 50pF, 10% to 90% of

- V

420ns

Fall Time D+/D- t

= 50pF, 90% to 10% of

- V

420ns

Rise- and Fall-Time Matching t

(Note 3) 90 111 %

Output Signal Crossover V

CRS

(Note 3) 1.3 2.0 V

DIFFERENTIAL RECEIVER (Figures 5 and 6a)

PLH

(

RCV

)

18 ns

D+/D- to RCV Propagation Delay

PHL

(

RCV

)

18 ns

SINGLE-ENDED RECEIVERS (Figures 5 and 6a)

PLH(SE)

18 ns

D+/D- to VPI or VMI Propagation

Delay

PHL(SE)

18 ns

Note 2: Parameters are 100% production tested at 25°C, limits over temperature are guaranteed by design.

Note 3: Guaranteed by design, not production tested.

1.5 2.11.8 2.4 2.7 3.0 3.3 3.6

DIFFERENTIAL RECEIVER PROPAGATION

DELAY vs. V

MAX3344E/45E toc01

(V)

PROPAGATION DELAY (ns)

= -40°C

= +25°C

= +85°C

4.00 4.504.25 4.75 5.00 5.25 5.50

DIFFERENTIAL RECEIVER PROPAGATION

DELAY vs. V

MAX3344E/45E toc02

(V)

PROPAGATION DELAY (ns)

= -40°C

= +25°C

= +85°C

1.5 2.11.8 2.4 2.7 3.0 3.3 3.6

SINGLE-ENDED RECEIVER PROPAGATION

DELAY vs. V

MAX3344E/45E toc03

(V)

PROPAGATION DELAY (ns)

= -40°C

= +25°C

= +85°C

1 2 3 4 5 6 7 8 9 ... 14 15

MAX3344E/MAX3345E 1

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