Product Preview DS21Q55
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information.
Signal Name: TTIPx 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: DV
DD
Signal Description: Digital Positive Supply
Signal Type: Supply
3.3V ±5%. Should be tied to the RV
DD
and TV
DD
pins.
Signal Name: RV
DD
Signal Description: Receive Analog Positive Supply
Signal Type: Supply
3.3V ±5%. Should be tied to the DV
DD
and TV
DD
pins.
Signal Name: TV
DD
Signal Description: Transmit Analog Positive Supply
Signal Type: Supply
3.3V ±5% Should be tied to the RV
DD
and DV
DD
pins.
Signal Name: DV
SS
Signal Description: Digital Signal Ground
Signal Type: Supply
Should be tied to the RV
SS
and TV
SS
pins.
Signal Name: RV
SS
Signal Description: Receive Analog Signal Ground
Signal Type: Supply
0.0V. Should be tied to DV
SS
and TV
SS
.
Signal Name: TV
SS
Signal Description: Transmit Analog Signal Ground
Signal Type: Supply
0.0V. Should be tied to DV
SS
and RV
SS
.