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 

µPB1008K

Pin

Pin Name

No.

Function and Application

10

REFin

Input pin of reference frequency

buffer. This pin should be

equipped with external 27 MHz

oscillator (e.g. TCXO).

11

GNDdig

Ground pin of digital portion of

the chip.

Internal Equivalent Circuit

9

ESD

10

ESD

20 kΩ

500 Ω

50 kΩ

idc = 22 µ

20 kΩ

500 Ω

5.4 pF

idc = 9.7µ

30 kΩ

12

IQ cntl

The voltage on this pin controls

the Q channel IF amplifier gain

control of ±2 dB can be

achieved for 0 to 3 V.

idc = 23.5 µ

Leave open-circuited if not

used.

200 kΩ

12

11

28

IREF

12 kΩ

idc = 23.5 µ

CCCS

13

PD1

Standby mode control.

Low = whole chip OFF & High =

Whole chip ON.

7.1 kΩ

7.1 kΩ

7.1 kΩ

32

VCC

7.1 kΩ

ESD

13

ESD

28 kΩ

11

Data Sheet PU10282EJ01V0DS

5

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