Rainbow-electronics MAX3469 Manual do Utilizador descarregar pdf (Página 3)

MAX3465–MAX3469

+5V, Fail-Safe, 40Mbps, Profibus RS-485/

RS-422 Transceivers

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= +5V ±5%, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V

= +5V and T

= +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Receiver Differential Threshold

Voltage

-7V ≤ V

≤ +12V -200 -125 -50 mV

Receiver Input Hysteresis ∆V

= 0 20 mV

Receiver Output High Voltage V

= -4mA, V

- V

= V

- 1.5 V

Receiver Output Low Voltage V

= 4mA, V

- V

= V

0.4 V

Three-State Output Current at

Receiver

OZR

0 ≤ V

≤ V

±1µA

Receiver Input Resistance R

-7V ≤ V

≤ +12V 48 kΩ

Receiver Output Short-Circuit

Current

OSR

0 ≤ V

≤ V

±7 ±95 mA

ESD Protection

A, B, Y, and Z pins

(MAX3467/MAX3468/MAX3469)

±6 kV

SUPPLY CURRENT

N or m al O p er ati on

( S tati c C ond i ti on)

No load, DI = V

or DI = GND 2.5 4 mA

Supply Current in SHDN I

SHDN

DE = GND and RE = V

, or SHDN = V

110µA

SWITCHING CHARACTERISTICS

PLH

Driver Propagation Delay

PHL

Figures 6 and 7, R

DIFF

= 54Ω,

= 50pF

15 ns

Driver Differential Output Rise or

Fall Time

Figures 6 and 7, R

DIFF

= 54Ω,

= 50pF

10 ns

Driver Output Skew |t

PLH

- t

PHL

SKEW

Figures 6 and 7, R

DIFF

= 54Ω,

= 50pF, TXP = GND or floating

2ns

Driver Output Transition Skew Guaranteed by design 1 ns

Maximum Data Rate 30 40 Mbps

Driver Enable to Output High t

Figures 8 and 9, S2 closed, R

= 500Ω,

= 50pF

30 ns

Driver Enable to Output Low t

Figures 8 and 9, S1 closed, R

= 500Ω,

= 50pF

30 ns

Driver Disable Time from Low t

Figures 8 and 9, S1 closed, R

= 500Ω,

= 50pF

30 ns

Driver Disable Time from High t

Figures 8 and 9, S2 closed, R

= 500Ω,

= 50pF

30 ns

Driver Enable Skew Time |t

ZL -

= 500Ω, C

= 50pF, S1 closed (Figures

8 and 9), output low

5ns

Driver Disable Skew Time |t

ZL -

= 500Ω, C

= 50pF, S2 closed (Figures

8 and 9), output high

5ns

PLH

Receiver Propagation Delay

PHL

Figure 10, C

= 15pF (Note 4) 20 ns

1 2 3 4 5 6 7 8 ... 13 14

Comentários a estes Manuais

Sem comentários

Rainbow-electronics MAX3469 Manual do Utilizador Página 3

Comentários a estes Manuais

Manuais e produtos relacionados com Painel de controlo Rainbow-electronics MAX3469