AEC+

Equalizer

Filter

AEC-

CD/MUTE

MUTEREF

CLI

DC

Restoration/

Level Control

Automatic

Equalization

Control

SDI

SDI

SDO

SDO

BYPASS

Output

Driver

6

Carrier

Detect/

Mute

Energy

Detect

Energy

Detect

LMH0034

SNLS213H – JANUARY 2006 – REVISED APRIL 2013

www.ti.com

PIN DESCRIPTIONS

Pin #

Name

Description

1

CLI

Cable length indicator. Provides a voltage inversely proportional to the cable length being equalized.

2

VCC

Positive power supply (+3.3V).

3

VEE

Negative power supply (ground).

4

SDI

Serial data true input.

5

SDI

Serial data complement input.

6

VEE

Negative power supply (ground).

7

AEC+

AEC loop filter external capacitor (1µF) positive connection.

8

AEC-

AEC loop filter external capacitor (1µF) negative connection.

9

BYPASS

Bypasses equalization and DC restoration when high. No equalization occurs in this mode.

10

MUTEREF

Mute reference. Determines the maximum cable to be equalized before muting. May be unconnected

for maximum equalization.

11

VEE

Negative power supply (ground).

12

SDO

Serial data complement output.

13

SDO

Serial data true output.

14

VEE

Negative power supply (ground).

15

VCC

Positive power supply (+3.3V).

16

CD/MUTE

Bi-directional carrier detect and output mute. CD/MUTE is high when no signal is present. If

unconnected, MUTE is controlled automatically by carrier detect. To force MUTE on, tie to VCC. To

disable MUTE, tie to GND. CD/MUTE has no function in BYPASS mode.

Block Diagram

4

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