ds22-l100-041 Conexant Systems, Inc., ds22-l100-041 Datasheet - Page 32

• Manufacturer Part Number: ds22-l100-041
• Description: Cx84100-41/-23 Scxv.22bis Modem V.22bis Modem With Cx20493 Smartdaa? Line Side Device
• Manufacturer: Conexant Systems, Inc.

3.2
3.2.1
3.2.1.1
3.2.1.2
3.2.1.3
3-8
CX20493 LSD 28-Pin QFN Hardware Pins and Signals
CX20493 LSD 28-Pin QFN Signal Summary
CX84100 V.22bis Modem Interface (Through DIB)
The DIB interface, power, and ground signals are:
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Telephone Line Interface
The telephone line interface signals are:
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Voltage References
There are three reference voltage pins:
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CX84100-41/-23 SCXV.22bis Modem Data Sheet
Clock: CLK, pin 26; input
Digital Power: PWR+, pin 7; unregulated input power
Regulated Digital Voltage Supply: DVdd, pin 24
Digital Ground: DGnd, pin 23; digital ground
Regulated Analog Voltage Supply: AVdd, pin 2
Analog Ground: AGnd, pin 6; analog ground
Data Positive: DIB_P, pin 27; input/output
Data Negative: DIB_N, pin 28; input/output
RING 1 AC Coupled: RAC1, pin 21; input
TIP 1 AC Coupled: TAC1, pin 20; input
RING 2 AC Coupled: RAC2, pin 19; input
TIP 2 AC Coupled: TAC2, pin 18; input
TIP and RING DC Measurement: TRDC, pin 12; input
Electronic Inductor Capacitor: EIC, pin 11
Electronic Inductor Output: EIO, pin 17
Electronic Inductor Feedback: EIF, pin 16
Receive Analog Input: RXI, pin 9; input
Transmit Output: TXO, pin 14; output
Transmit Feedback: TXF, pin 13; input
Virtual Impedance 0: VZ, pin 10; input
Electronic Inductor Ground: DC_GND, pin 15
Output Middle: Center Reference Voltage: Vc, pin 3; output for decoupling
Output Reference Voltage: VRef, pin 4; output for decoupling
Bias Resistor: RBias, pin 5; input
Conexant
102339C