Rainbow-electronics MAX9258 Manual do Utilizador descarregar pdf (Página 3)

MAX9257/MAX9258

_______________________________________________________________________________________ 3

Fully Programmable Serializer/Deserializer

with UART/I

C Control Channel

MAX9257 DC ELECTRICAL CHARACTERISTICS (continued)

CC_

= +3.0V to +3.6V, R

= 50Ω ±1%, T

= -40°C to +105°C, unless otherwise noted. Typical values are at V

CC_

= +3.3V,

= +25°C.) (Notes 2, 3)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

= 100µA 0.1

Low-Level Output Voltage V

= 2mA 0.3

Shorted to GND -44 -10

Output Short-Circuit Current I

Shorted to V

CC_

10 44

C/UART I/O

Input Leakage Current I

ILKG

= V

-1 +1 µA

High-Level Input Voltage SDA/RX V

IH2

0.7 x

Low-Level Input Voltage SDA/RX V

IL2

0.3 x

Low-Level Output Voltage

SCL, SDA

OL2

PULLUP

= 1.6k

0.4 V

LVDS OUTPUTS (SDO+, SDO-)

Differential Output Voltage V

250 350 460 mV

Change in V

Between

Complimentary Output States

20 mV

Common-Mode Voltage V

1.050 1.25 1.375 V

Change in V

Between

Complimentary Output States

Preemphasis off

(Figure 1)

20 mV

Output Short-Circuit Current I

SDO+

or V

SDO-

= 0 or 3.6V -15 +15 mA

Magnitude of Differential Output

Short-Circuit Current

OSD

= 0 15 mA

CONTROL CHANNEL TRANSCEIVER

Differential Output Voltage V

250 350 460 mV

HYST+

Differential low-to-high threshold 25 90 135

Input Hysteresis

(Figure 2)

HYST-

Differential high-to-low threshold -25 -90 -135

1 2 3 4 5 6 7 8 ... 53 54

MAX9257/MAX9258 1
C Control Channel 1

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