GS2993 datasheet(4/23 Pages) SEMTECH

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GS2993 Dual Output Adaptive Cable Equalizer

Data Sheet

53966 - 4

August 2012

4 of 23

Propietary & Confidential

1. Pin Out

1.1 GS2993 Pin Assignment

Figure 1-1: GS2993 Pin Out

1.2 GS2993 Pin Descriptions

Ground Pad

(bottom of package)

GS2993

24-pin QFN

(top view)

AGC

VCC_A

GAIN_SEL

VEE_A

SDI

VEE_02

SDO1

SDO2

VEE_01

SDO1

SDO2

Table 1-1: GS2993 Pin Descriptions

Pin Number

Name

Timing

Type

Description

VCC_A

Analog

Power

Most positive power supply connection for the input buffer, core

and control circuits of the device.

Connect to +3.3V DC.

VEE_A

Analog

Power

Most negative power supply connection for the input buffer, core

and control circuits.

Connect to GND.

3, 4

SDI, SDI

Analog

Input

Serial digital differential input.

5GAIN_SEL

Not

Synchronous

Input

Input Sensitivity Control.

When LOW, the sensitivity is 800mV.

When HIGH, the sensitivity is 400mV.

Includes an internal pull-down resistor.

6, 7

AGC, AGC

Analog

–

External AGC capacitor.

Connect pin 5 and pin 6 together as shown in the Typical

Application Circuit on page 19.

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