UPC1678 datasheet(3/16 Pages) NEC

Part #	UPC1678

Description	5 V-BIAS, 7.5 dBm OUTPUT, 2.0 GHz WIDEBAND Si MMIC AMPLIFIER

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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Data Sheet P11491EJ4V0DS00

3

µµµµPC1678G

PIN EXPLANATION

No.

Pin Name

Applied

Voltage

(V)

Function and Applications

Internal Equivalent Circuit

1

INPUT

–

Signal input pin. A internal matching

circuit, configured with resisters, enables

50

Ω connection over a wide band.

A multi-negative feedback circuit is

designed to cancel the deviations of hFE

and resistance.

This pin must be coupled to signal source

with capacitor for DC cut.

2

3

4

6

7

GND

0

Ground pin. This pin should be

connected to system ground with

minimum inductance. Ground pattern on

the board should be formed as widely as

possible. All the ground pins must be

connected together with wide ground

pattern to decrease impedance

difference.

5

OUTPUT

Voltage

as same

as VCC

through

external

inductor

Signal output pin. The inductor must be

attached between VCC and output pins to

supply current to the internal output

transistors.

8VCC

4.5 to 5.5

Power supply pin, which biases the

internal input transistors.

This pin should be externally equipped

with bypass capacitor to minimize its

impedance.

5

8

1

IN

6

7

2

4

3

VCC

OUT

GND

2, 3, 4, 6 and 7 are shorted by a lead frame.

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