전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

ST20-GP1 데이터시트(PDF) 11 Page - STMicroelectronics

부품명 ST20-GP1
상세설명  GPS PROCESSOR
Download  116 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST20-GP1 데이터시트(HTML) 11 Page - STMicroelectronics

Back Button ST20-GP1 Datasheet HTML 7Page - STMicroelectronics ST20-GP1 Datasheet HTML 8Page - STMicroelectronics ST20-GP1 Datasheet HTML 9Page - STMicroelectronics ST20-GP1 Datasheet HTML 10Page - STMicroelectronics ST20-GP1 Datasheet HTML 11Page - STMicroelectronics ST20-GP1 Datasheet HTML 12Page - STMicroelectronics ST20-GP1 Datasheet HTML 13Page - STMicroelectronics ST20-GP1 Datasheet HTML 14Page - STMicroelectronics ST20-GP1 Datasheet HTML 15Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 116 page
background image
ST20-GP1
11/116
®
3
Digital signal processing module
The ST20-GP1 chip includes 12 channel GPS correlation DSP hardware. It is designed to handle
twelve satellites, two of which can be initialized to support the RTCA-SC159 specification.
The digital signal processing (DSP) module extracts GPS data from the incoming IF (Intermediate
Frequency) data. There are a number of stages of processing involved; these are summarized
below and in Figure 3.1. After the 12 pairs of hardware correlators, the data for all channels are
time division multiplexed onto the appropriate internal buses (i.e. values for each channel are
passed in sequence, for example: I1, Q1, I2, Q2 ... I12, Q12, I1, Q1).
Figure 3.1 DSP module block diagram
The main stages of processing are as follows:
Data sampling
This stage removes any meta-stability caused by the asynchronous input data coming from an
analogue source (the radio receiver). The data at this point consists of a carrier of nominally
4.092 MHz with a bandwidth of approximately
±1 MHz.
This stage is common to all 12 channels.
Frequency conversion (A)
The first frequency converter mixes the sampled IF data with the (nominal) 4.092 MHz signal. This
is done twice with a quarter cycle offset to produce I and Q (In-phase and Quadrature) versions of
the data at nominal zero centre frequency (this can actually be up to
±132 KHz due to errors such
I correlator
(x 12)
Q correlator
(x 12)
frequency
converter A
frequency
converter B
accumulator
ST20 CPU accessible
data
sampler
4 MHz IF
input
generator
(x 12)
Numerically
controlled
oscillator
registers
Pseudo random
noise sequence
DMA
interface


유사한 부품 번호 - ST20-GP1

제조업체부품명데이터시트상세설명
logo
STMicroelectronics
ST20-GP6 STMICROELECTRONICS-ST20-GP6 Datasheet
1Mb / 123P
   GPS PROCESSOR
More results

유사한 설명 - ST20-GP1

제조업체부품명데이터시트상세설명
logo
STMicroelectronics
ST20-GP6 STMICROELECTRONICS-ST20-GP6 Datasheet
1Mb / 123P
   GPS PROCESSOR
logo
ATMEL Corporation
ATR0620 ATMEL-ATR0620 Datasheet
365Kb / 15P
   GPS BASEBAND PROCESSOR
ATR0621 ATMEL-ATR0621 Datasheet
396Kb / 20P
   GPS Baseband Processor
ATR0622P1 ATMEL-ATR0622P1 Datasheet
266Kb / 11P
   GPS Baseband Processor
ATR0622 ATMEL-ATR0622 Datasheet
410Kb / 26P
   GPS Baseband Processor
ATR0621P1 ATMEL-ATR0621P1 Datasheet
346Kb / 14P
   GPS Baseband Processor
ATR0622P ATMEL-ATR0622P_08 Datasheet
504Kb / 27P
   GPS Baseband Processor
ATR0625P1 ATMEL-ATR0625P1 Datasheet
262Kb / 12P
   GPS Baseband Processor SuperSense
ATR0625 ATMEL-ATR0625 Datasheet
335Kb / 26P
   GPS Baseband Processor SuperSense
logo
Zarlink Semiconductor I...
GP4020 ZARLINK-GP4020 Datasheet
207Kb / 17P
   GPS Receiver Baseband Processor
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com