ShutDown

Mode

EN=high

Powerup

EN=low

2-channel

Active

Mode

EN=low

Powerup

EN=high

1-channel

Active

Mode

EN=high

EN=Vcc/2

EN=low

EN=Vcc/2

Powerup

EN=Vcc/2

SN75DP119

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SLLSE12A – NOVEMBER 2009 – REVISED JULY 2014

9.4 Device Functional Modes

9.4.1 Status Detect and Operating Modes Flow Diagram

The SN75DP119 switches between the power saving and the active modes in the following way:

Figure 8. SN75DP119 Operational Modes Flow Chart

Table 2. Description of SN75DP119 Modes

MODE

CHARACTERISTICS

CONDITIONS

ShutDown Mode

Least amount of power consumption (all circuitry turned off); outputs are high-

EN is low

impedance

Data transfer (normal operation); The device outputs OUTx represents the data

EN is high

2- channel Active

received on the input INx. The input EQ and output pre-emphasis and output swing (both main link outputs

Mode

voltage level are controlled through the external control pins.

enabled)

Data transfer (normal operation); The device output OUT0 represents the data

EN is VCC/2

1-channel Active

Mode

EQ and output pre-emphasis and output swing voltage level are controlled through

enabled)

the external control pins.

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