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DS21Q55

Signal Name:

TTIP x and TRINGx

Signal Description:

Transmit Tip and Ring

Signal Type:

Output

Analog line driver outputs. These pins connect via a 1:2 step-up transformer to the network. See Line Interface Unit for details.

3.7 Supply Pins

Signal Name:

DVDD

Signal Description:

Digital Positive Supply

Signal Type:

Supply

3.3V ±5%. Should be tied to the RVDD and TVDD pins.

Signal Name:

RVDD

Signal Description:

Receive Analog Positive Supply

Signal Type:

Supply

3.3V ±5%. Should be tied to the DVDD and TVDD pins.

Signal Name:

TVDD

Signal Description:

Transmit Analog Positive Supply

Signal Type:

Supply

3.3V ±5% Should be tied to the RVDD and DVDD pins.

Signal Name:

DVSS

Signal Description:

Digital Signal Ground

Signal Type:

Supply

Should be tied to the RVSS and TVSS pins.

Signal Name:

RVSS

Signal Description:

Receive Analog Signal Ground

Signal Type:

Supply

0.0V. Should be tied to DVSS and TVSS .

Signal Name:

TVSS

Signal Description:

Transmit Analog Signal Ground

Signal Type:

Supply

0.0V. Should be tied to DVSS and RVSS.

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Please contact telecom.support@dalsemi.com or search http://www.maxim-ic.com for updated

information.

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Maxim DS21Q55 specifications Supply Pins