NB7L72M

http://onsemi.com

2

VT1 SEL1 GND VCC

VT0 SEL0 GND VCC

Q0

Q0

Q1

Q1

IN0

IN0

IN1

IN1

56

7

8

16

15

14

13

12

11

10

9

1

2

3

4

NB7L72M

Exposed Pad (EP)

Figure 2. Pin Configuration (Top View)

Table 1. INPUT/OUTPUT SELECT TRUTH TABLE

SEL0*

SEL1*

Q0

Q1

L

L

IN0

IN0

L

H

IN0

IN1

H

L

IN1

IN0

H

H

IN1

IN1

*Defaults HIGH when left open

Table 2. PIN DESCRIPTION

Pin

Name

I/O

Description

1

IN0

LVPECL, CML,

LVDS Input

Noninverted Differential Input. (Note 1)

2

IN0

LVPECL, CML,

LVDS Input

Inverted Differential Input. (Note 1)

3

IN1

LVPECL, CML,

LVDS Input

Inverted Differential Input. (Note 1)

4

IN1

LVPECL, CML,

LVDS Input

Noninverted Differential Input. (Note 1)

5

VT1

−

Internal 50 W Termination Pin for IN1 and IN1.

6

SEL1

LVCMOS Input

Input Select logic pin for IN0 or IN1 Inputs to Q1 output. See Table 1, Input/Output Select Truth

Table; pin defaults HIGH when left open.

7

GND

Negative Supply Voltage

8

VCC

−

Positive Supply Voltage

9

Q1

CML Output

Noninverted Differential Output. (Note 1)

10

Q1

CML Output

Inverted Differential Output. (Note 1)

11

Q0

CML Output

Inverted Differential Output. (Note 1)

12

Q0

CML Output

Noninverted Differential Output. (Note 1)

13

VCC

−

Positive Supply Voltage

14

GND

−

Negative Supply Voltage

15

SEL0

LVCMOS Input

Input Select logic pin for IN0 or IN1 Inputs to Q0 output. See Table 1, Input/Output Select Truth

Table; pin defaults HIGH when left open.

16

VT0

−

Internal 50 W Termination Pin for IN0 and IN0

−

EP

−

The Exposed Pad (EP) on the QFN−16 package bottom is thermally connected to the die for

improved heat transfer out of package. The exposed pad must be attached to a heat−sinking

conduit. The pad is electrically connected to the die, and is recommended to be electrically and

thermally connected to GND on the PC board.

1. In the differential configuration when the input termination pins (VT0, VT1) are connected to a common termination voltage or left open, and

if no signal is applied on INx/INx input, then the device will be susceptible to self−oscillation.

2. All VCC and GND pins must be externally connected to a power supply for proper operation.