SmartACFL

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V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications

16

Conexant

Doc. No. 100444A

Proprietary Information

LSD Hardware Pins and Signals

MDP Interface (Through DIB)

The DIB interface signals are:

• Clock (CLK); input

• Digital Power (PWR+); input power

• Digital Ground (DGND); digital ground

• Data Positive (DIB_P); input

• Data Negative (DIB_N); input

Telephone Line Interface

The telephone line interface signals are:

• RING AC Coupled (RAC1); input

• TIP AC Coupled (TAC1); input

• Electronic Inductor Resistor (EIR); output

• TIP and RING DC Measurement (TRDC); input

• DAC Output Voltage (DAC); output

• Electronic Inductor Capacitor (EIC)

• Electronic Inductor Output (EIO)

• Electronic Inductor Feedback (EIF)

• Resistive Divider Midpoint (DCF)

• Transmit Analog Output (TXA); output

• Receive Analog Input (RXI); input

• Receiver Gain (RXG); output

• MOV Enable (MOVEN); output

• World-wide Impedance 0 (ZW0); input

• US Impedance 0 (ZUS0); input

• Transmit Feedback (TXF); input

• Transmit Output (TXO); output

LSD Signal Interface and Pin Assignments

The LSD (20463) 32-pin TQFP hardware interface

signals are shown by major interface in Figure 7.

The LSD (20463) 32-pin TQFP pin signals are

shown in Figure 8.