UPB1008K-E1 データシートの表示（PDF） - NEC => Renesas Technology

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UPB1008K-E1

REFERENCE FREQUENCY 27.456 MHz, 2ndIF FREQUENCY 132 kHz RF/IF FREQUENCY DOWN-CONVERTER + PLL FREQUENCY SYNTHESIZER IC FOR GPS RECEIVER

NEC => Renesas Technology 

PIN EXPLANATION

Pin

Pin Name

No.

Function and Application

1

GND LNA Ground pin of LNA.

2

LNAin

Input pin of low noise amplifier.

It is a single-ended open

collector design. Capacitive

coupling is required; external

matching will improve gain or

NF.

µPB1008K

Internal Equivalent Circuit

3

36

2

VCC

Regulator

6.5 kΩ

3

VCCrf

Supply voltage pin of LNA, RF

mixer and VCO voltage

regulator.

4

GNDLO

Ground pin of 1stLO oscillator

circuit and RF Mixer.

5

1stLO-OSC1 Pin 5 & 6 are base pins of the

differential amplifier for 1stLO

oscillator. These pins requre an

LC (varacator) tank circuit to

6

1stLO-OSC2 oscilate at around 1 400 MHz.

7

VCCLO

Supply voltage pin of oscillator

circuit for 1stLO oscillator and

RF mixer.

8

PDout

This is a cirrent mode charge

pump output. For connection to

a passive RC loop filter for

driving external varactor diode

of 1stLO oscillator.

9

VCCdig

Supply voltage pin of digital

portion of the chip.

1

7

410 Ω

3

6

VCC

400 Ω

400 Ω

1.8 pF 1.8 pF

5

4.4 kΩ

4.4 kΩ

Regulator

idc = 941µ

4

Source

Control

Sink

Control

9

ESD

8

ESD

11

4

Data Sheet PU10282EJ01V0DS

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