CLC730045 National Semiconductor, CLC730045 Datasheet

CLC730045

Manufacturer Part Number

CLC730045

Description

BOARD EVAL FOR SGL BUFFER SOIC

Manufacturer

National Semiconductor

Datasheet

1.CLC730045.pdf (2 pages)

Specifications of CLC730045

Channels Per Ic

1 - Single

Amplifier Type

Buffer

Board Type

Bare (Unpopulated)

Utilized Ic / Part

8-SOIC Package

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Operating Temperature

Output Type

Current - Output / Channel

Voltage - Supply, Single/dual (±)

-3db Bandwidth

Slew Rate

Current - Supply (main Ic)

Current page: 1 of 2
Download datasheet (45Kb)

The CLC730012 is an evaluation board intended for the

evaluation of single buffers in the DIP package. The

CLC730045 is a similar board, but laid out for an SOIC

package.

To obtain optimum performance from a high speed

device, a good Printed Circuit Board (PCB) layout is

essential. The importance of the layout becomes greater

as the frequency of operation increases.

Comlinear’s buffers have bandwidths in excess of 800

MHZ, therefore it is vital that sound PCB layout tech-

niques be used when designing with these devices. The

CLC730012 and CLC730045 are examples of good PCB

layouts which designers are encouraged to copy.

To minimize capacitive feedthrough and noise, the pins

not connected internally, should be connected to the

ground plane. Input and output traces should be laid out

as transmission lines with the appropriate termination

resistors very near the device. On a 0.0065” (FR4 or

equivalent) a 0.1” wide trace over ground plane on the

opposite side of the board will exhibit a characteristic

impedance of 50 .

Figure 1 shows recommended power supply bypassing.

The ferrite beads are optional and are recommended only

where additional isolation is needed from high-frequency

(>400MHz) resonances of the power supply.

Parasitic or load capacitance directly on the output of a

buffer will introduce additional phase shift in the device. If

excessive, this phase shift can lead to peaking in the fre-

quency response or, in extreme cases, oscillation. A

small series resistor in series with a capacitive load effec-

tively decouples it from the buffer output and removes the

undesirable effects of excess phase shift. Further detail

on the selection of these resistors can be found in the indi-

vidual buffer data sheets.

Parts List

Printed in the U.S.A.

OUT

, L

, C

select for desired input resistance

select for desired output resistance

0.1 F capacitor

6.8 F capacitor

Optional ferrite bead inductors

Some of

CLC109/110/111 Evaluation Boards

Part Numbers CLC730012, CLC730045

Figure 2: Component Placement Guide

Figure 1: Recommended Circuit and

Evaluation Board Schematic

http://www.national.com

August 1996

Related parts for CLC730045

CLC730045 Summary of contents

Page 1

... N The CLC730012 is an evaluation board intended for the evaluation of single buffers in the DIP package. The CLC730045 is a similar board, but laid out for an SOIC package. To obtain optimum performance from a high speed device, a good Printed Circuit Board (PCB) layout is essential. The importance of the layout becomes greater as the frequency of operation increases. Comlinear’ ...

Page 2

... Figure 5: 730045 Solder Side (bottom) viewed from Component Side (top) Customer Design Applications Support National Semiconductor is committed to design excellence. For sales, literature and technical support, call the National Semiconductor Customer Response Group at 1-800-272-9959 or fax 1-800-737-7018. Life Support Policy National’s products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of National Semiconductor Corporation ...

Related keywords

CLC730045 datasheet
CLC730045 data sheet
CLC730045 pdf datasheet
CLC730045 component
CLC730045 part
CLC730045 distributor
CLC730045 RoHS
CLC730045 datasheet download