MAX2745 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX2745

Single-Chip Global Positioning System Receiver Front-End

Maxim Integrated 

Single-Chip Global Positioning System

Receiver Front-End

Typical Application Circuit

TCXO

PIN 47

PIN 48

OPTIONAL XTAL INPUT

48 47 46 45 44 43 42 41 40 39 38 37

RBIAS 1

CBIAS 2

MAX2745

VCXO

VDD 3

VDD 4

BIAS

GND 5

PFD

DIVIDER

CHG

PUMP

GND 6

LNA/MIXER

VCO

fIN

RFIN 7

1575.42MHz

GND 8

TEMPERATURE

SENSOR

VSPORT

VDD 9

IEXT_LNA 10

BANDPASS FILTER

AGC

QUANTIZER

VDD 11

AGC_FIL 12

FILTER AUTOMATIC TUNING

VOLTAGE

BOOSTER

36 BPF_CTRL

35 ODS

34 CFS

33 COE

32 VDD

31 SCLK

30 GND

29 VOUT+

28 VOUT-

27 VDD

26 GND

25 VDD

13 14 15 16 17 18 19 20 21 22 23 24

8 _______________________________________________________________________________________

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