1

4

3

2

LMH0344

12

9

10

11

8

5

6

7

13

16

15

14

SDI

SDI

SDO

SDO

LMH0344

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SNLS233O – APRIL 2007 – REVISED JULY 2015

5 Pin Configurations and Functions

RUM Package

16-Pin WQFN

Top View

The exposed die attach pad is a negative electrical terminal for this device. It should be connected to the negative

power supply voltage.

Pin Functions – RUM Package

PIN

I/O

DESCRIPTION

NAME

WQFN

AEC+

5

I/O, Analog

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

AEC-

6

I/O, Analog

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

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

BYPASS

7

I, LVCMOS

This pin does not have an internal pulldown. If the bypass function is not used, this pin requires

an external pulldown resistor to disable bypass.

CD

15

O, LVCMOS

Carrier detect. CD is high when no signal is present. CD has no function in BYPASS mode.

Output mute. To disable the mute function and enable the output, MUTE must be tied to GND

MUTE

14

I, LVCMOS

pin to inhibit the output when no input signal is present. MUTE has no function in BYPASS

mode.

Mute reference. Sets the threshold for CD and (with CD tied to MUTE) determines the

8

I, Analog

connected to ground for maximum equalization.

NC

—

—

No connect.

SDI

2

I, Analog

Serial data true input.

SDI

3

I,Analog

Serial data complement input.

SDO

11

O, Analog

Serial data true output.

SDO

10

O, Analog

Serial data complement output.

13

Power

Positive power supply (+3.3V).

16

DAP

1

4

Ground

Negative power supply (ground). Note Figure 7 for layout example.

9

12

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