UPC2722GV-E1 datasheet(3/12 Pages) NEC

Teilenummer	UPC2722GV-E1

Bauteilbeschribung	GENERAL PURPOSE L-BAND DOWN CONVERTER ICs

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Hersteller	NEC [NEC]

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Data Sheet P11102EJ4V0DS00

3

µµµµPC2721, µµµµPC2722

No.

SYMBOL

PIN VOLT

TYP.(V)

Function and Explanation

Equivalent circuit

1

OSC base

(bypass)

2.9

Internal oscillator consists in balance

amplifier. 2 pin and 3 pin should be

externally equipped with tank resonator

circuit in order to oscillate with feedback

loop.

2

OSC base

(feedback)

2.9

3OSC

collector

(coupling)

5.0

4VCC

5.0

Supply voltage pin for the IC.

5

IF output

µPC2721

2.9

In

µPC2721, IF amplifier is designed as

single-end push-pull amplifier.

This pin is assigned for the emitter follower

output with 50

Ω constant resistive

impedance in wide band.

µPC2721

µPC2722

5.0

In

µPC2722, IF amplifier is designed as

balance amplifier.

This pin is assigned for the open collector

output with high impedance dependent on

external inductance.

µPC2722

6

GND

0.0

GND pin for the IC.

7

RF input 2

(bypass)

2.4

7 pin and 8 pin are inputs for mixer

designed as double balanced type. Either

pin can be assigned for input and another

for ground.

8

RF input 1

2.4

1 pin should be grounded through

coupling capacitor to 0.5 pF.

3 pin is defined as open collector. This pin

should be coupled through resistor or

chock coil in order to adjust Q and be

supplied voltage. In case of abnormal

oscillation, adjust its Q lower to stabilize

the operation.

3

1

VCC

2

5

8

7

Ähnliche Beschreibung - UPC2722GV-E1

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