AFE1124 datasheet(4/17 Pages) TI1

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AFE1124

PIN #

TYPE

NAME

DESCRIPTION

No Connection

Power

DVDD

Digital Supply (+3.3 to +5V)

Ground

DGND

Digital Ground

Input

txbaudCLK

Transmit Baud Clock (584kHz for E1)

Input

tx48xCLK

Transmit Clock at 48x baud clock (28.032MHz for E1)

Input

Data In

Input Data Word

Input

rxbaudCLK

Receive baud clock (584kHz for E1)

Input

rx48xCLK

Receive clock at 48x baud clock (28.032MHz for E1)

Output

Data Out

Output Data Word

Power

DVDD

Digital Supply (+3.3 to +5V)

Ground

DGND

Digital Ground

Power

AVDD

Analog Supply (+5V)

Input

rxHYB–

Negative input from hybrid network

Input

rxHYB+

Positive input from hybrid network

Input

rxLINE–

Negative line input

Input

rxLINE+

Positive line input

Ground

AGND

Analog Ground

Output

vrREFP

Positive reference output

Output

VCM

Common-mode voltage (buffered)

Output

vrREFN

Negative reference output

Power

AVDD

Analog Supply (+5V)

Ground

AGND

Analog Ground

Output

txLINE–

Negative line output

Power

AVDD

Output buffer supply (+5V)

Output

txLINE+

Positive line output

Ground

AGND

Output buffer ground

No Connection

PIN DESCRIPTIONS

BLOCK DIAGRAM

Pulse

Former

Filter

txbaudCLK

tx48xCLK

Data In

rxbaudCLK

rx48xCLK

Data Out

Output

Buffer

Voltage

Reference

∆Σ

Modulator

Transmit

Control

Receive

Control

Decimation

Filter

txLINE–

txLINE+

REFP

VCM

REFN

rxLINE+

rxLINE–

rxHYB+

rxHYB–

AFE1124 Datasheet(PDF) 4 Page - Texas Instruments

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