AM1808AZCED3 datasheet(196/264 Pages) TI

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MDCLK

MDIO

(input)

MDCLK

MDIO

(output)

AM1808

SPRS653A – FEBRUARY 2010 – REVISED APRIL 2010

www.ti.com

6.23.2 Management Data Input/Output (MDIO) Electrical Data/Timing

Table 6-105. Timing Requirements for MDIO Input (see Figure 6-50 and Figure 6-51)

1.3V, 1.2V, 1.1V, 1.0V

NO.

UNIT

MIN

MAX

tc(MDCLK)

Cycle time, MDCLK

400

tw(MDCLK)

Pulse duration, MDCLK high/low

180

tt(MDCLK)

Transition time, MDCLK

tsu(MDIO-MDCLKH)

Setup time, MDIO data input valid before MDCLK high

th(MDCLKH-MDIO)

Hold time, MDIO data input valid after MDCLK high

Figure 6-50. MDIO Input Timing

Table 6-106. Switching Characteristics Over Recommended Operating Conditions for MDIO Output

(see Figure 6-51)

1.3V, 1.2V,

1.1V, 1.0V

NO.

UNIT

MIN

MAX

td(MDCLKL-MDIO)

Delay time, MDCLK low to MDIO data output valid

100

Figure 6-51. MDIO Output Timing

196

Peripheral Information and Electrical Specifications

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AM1808AZCED3 Datasheet(PDF) 196 Page - Texas Instruments

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