UPC1687GV datasheet(3/5 Pages) CEL

Part #	UPC1687GV

Description	900 MHz SILICON RFIC DOWN CONVERTER

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Manufacturer	CEL [California Eastern Labs]

Direct Link	http://www.cel.com

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OUTPUT POWER AND

INTERMODULATION DISTORTION

vs. INPUT POWER

CIRCUIT CURRENT vs.

SUPPLY VOLTAGE

Input Power (RF), PIN (dBm)

Each Tone

Supply Voltage, VCC (V)

1

2

3

4

5

6

50

40

30

20

10

0

VCC = 5 V

RF = 500 MHz

IF = 50 MHz

POUT

IM 3

-40

-20

0

+20

0

-40

-20

UPC1687GV

TYPICAL PERFORMANCE CURVES (TA = 25°C)

Internal

Equivalent

No.

Name

Description

Circuit

1

OSC Base

Input pins for the internal oscillator which consists

(bypass)

of a balanced amplifier. Pin 1 should be bypassed to ground

through a capacitor. Pins 2 and 3 should be externally

2

OSC Base

equipped with a tank resonator. Note that pin 3 is an open

(feedback)

collector and must be supplied voltage through an external

resistor or choke coil.

3

OSC

Collector (Coupling)

4VCC

Supply voltage pin. This pin should be externally equipped

with a bypass capacitor to minimize ground impedance.

5

IF Output

IF output pin from the single-ended push-pull amplifier.

This pin is an emitter follower output with a constant

resistive impedance of 50

Ω.

6

GND

Ground pin. This pin must be connected to system ground.

Form ground pattern as wide as possible to minimize

ground impedance.

7

RF Input 1

RF input pins. Pins 7 and 8 are each base inputs to a

(bypass)

double balanced mixer. Either pin can be assigned as the

input. The unused pin should be bypassed to ground

8

RF Input 2

through a capacitor.

PIN DESCRIPTION

3

2

1

VCC

to OSC

Buffer

Amp

VREF

5

VCC

IF

Output

from IF

Pre amp

RF

Inputs

VCC

from

OSC

Buffer

to IF

Amp

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UPC1687GV Datasheet(PDF) 3 Page - California Eastern Labs

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