UPB1003GS datasheet(7/16 Pages) NEC

7 / 16 page

Preliminary Data Sheet P14016EJ1V0DS00

µµµµPB1005K

PIN EXPLANATION

No.

Pin Name

Applied

Voltage

(V)

Voltage

(V)

Function and Application

Internal Equivalent Circuit

RX-MIXout



1.68

Output pin of RF mixer.

1st IF filter must be inserted

between pin 33 & 35.

VCC (RF-MIX)

2.7 to 3.3



Supply voltage pin of RF mixer

block. This pin must be

decoupled with capacitor

(example: 1 000 pF).

1RF-MIXin



1.20

Input pin of RF mixer.

1 575.42 MHz band pass filter

can be inserted between pin 1

and external LNA.

GND (RF-MIX)



Ground pin RF mixer.

1stLO

-OSC

3VCC

(1stLO-OSC)

2.7 to 3.3



Supply voltage pin of differential

amplifier for 1st LO oscillator

circuit.

41stLO-OSC1



1.88

51stLO-OSC2



1.88

Pin 4 & 5 are each base pin of

differential amplifier for 1st LO

oscillator. These pins should be

equipped with LC and varactor

to oscillate on 1 636.80 MHz as

VCO.

6GND

(1stLO-OSC)



Ground pin of differential

amplifier for 1st LO oscillator

circuit.

RF-MIX or

Prescaler

input

VCC

7VCC (phase

detector)

2.7 to 3.3



Supply voltage pin of phase

detector and active loop filter.

8N.C.



Non connection

PD-Vout3

Pull-up

with

resistor



PD-Vout2



Output in

accordance

with phase

difference

PD-Vout1

Pull-up

with

resistor



Pins of active loop filter for

tuning voltage output.

The active transistors

configured with darlington pair

are built on chip. Pin 11 should

be pulled down with external

resistor. Pin 9 to 10 should be

equipped with external RC in

order to adjust dumping factor

and cutoff frequency. This

tuning voltage output must be

connected to varactor diode of

1st LO-OSC.

GND (phase

detector)



Ground pin of phase detector +

active loop filter.

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