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GP1020CGGPKR 반도체 회로 부품 판매점

SIX-CHANNEL PARALLEL CORRELATOR CIRCUIT FOR GPS OR GLONASS RECEIVERS



Zarlink Semiconductor Inc 로고
Zarlink Semiconductor Inc
GP1020CGGPKR 데이터시트, 핀배열, 회로
FEBRUARY 1994
DS3605-2.2
GP1020
SIX-CHANNEL PARALLEL CORRELATOR CIRCUIT
FOR GPS OR GLONASS RECEIVERS
The GP1020 is a six-channel CMOS digital correlator which
has been designed to work with the GP1010 L1-channel down-
converter or other integrated circuits, and may be used to acquire
and track the GPS C/A code or the GLONASS signals.
For each of the six channels the GP1020 includes independ-
ent digital down-conversion to baseband, C/A code generation,
correlation, and accumulate-and-dump registers.
The GP1020 interfaces with a microprocessor via a 16-bit
data bus to control the acquisition and tracking processes using
the various registers on the chip.
FEATURES
s Six Fully Independent Correlation Channels
s Switchable to Receive GPS or GLONASS Codes
s Input Multiplexer for Multiple GPS Front-Ends – Allows
Antenna Diversity
s Input Multiplexer for GLONASS Multiple (Separate
Channels) Front-Ends
s Digital Interface Compatible with Most 16 or 32-Bit
Microprocessors
s Fully Compatible with GP1010 GPS Receiver Front-End
s Sideways Stackable to give Multiples of Six Channels
s 120-pin Plastic Quad Flatpack
s Power Dissipation Less Than 500mW
APPLICATIONS
s GPS or GLONASS Navigation Systems
s High Integrity Combined Receivers
s GPS Geodetic Receivers
s GPS Time Reference
ORDERING INFORMATION
The GP1020 is available in 120-pin Quad Flatpacks (Gullwing
formed leads) in both Commercial (0°C to 170°C) and Industrial
(240°C to 185°C) grades. The ordering codes below are for
standard screened devices.
ORDERING CODES
GP1020 CG GPKR Commercial - Plastic 120-pin QFP (GP120)
GP1020 IG GPKR Industrial - Plastic 120-pin QFP (GP120)
90
91
61
60
GP1020
120 31
1 30 GP120
Fig 1 Pin connections - top view
ABSOLUTE MAXIMUM RATINGS
These are not the operating conditions, but are the absolute
limits which if exceeded, even momentarily, may cause perma-
nent damage. To ensure sustained correct operation the device
should be used within the limits given under Electrical Character-
istics.
Supply voltage (VDD) from ground (VSS):
20·3V to16·0 V
Input voltage (any input pin):
VSS20·3V to VDD10·3 V
Output voltage (any output pin):
VSS20·3V to VDD10·3 V
Storage temperature:
255°C to 1125°C
RELATED PRODUCTS
Part
Description
DW9255 35·42MHz SAW Filter
GP1010 GPS Receiver Front-End
Datasheet
Reference
DS3861
DS3076


GP1020CGGPKR 데이터시트, 핀배열, 회로
GP1020
TYPICAL GPS RECEIVER (Fig. 2)
All satellites use the same L1 frequency of 1575·42MHz, but different Gold codes, so a single front-end may be used. To
achieve better sky coverage it may be desirable to use more than one antenna, in which case separate front-ends will be needed.
GND
15V
MASTERRESET
NAVIGATION
SOLUTION
GP1010
&
FILTER
MULTIPLE ANTENNAS TO GIVE
WIDER SKY COVERAGE
MASTER CLK
SAMPLE CLK
SIGN
MAG
VSS MASTER/SLAVE VDD CS
SIGN 0
MAG 0
SIGN 1
MAG 1
GP1020
(MASTER)
TIC OUT INT OUT
DECODE
DATA BUS (16)
ADDR BUS (8)
CONTROL 3
OPTIONAL
SECOND
GP1010
&
FILTER
TIC IN INT IN
CS
SIGN 0
MAG 0
OPTIONAL SECOND
SIGN 1
GP1020
MAG 1
(SLAVE)
VDD MASTER/SLAVE VSS
DECODE
15V
GND
MASTERRESET
Fig. 2 GPS receiver simplified block diagram
TYPICAL GLONASS RECEIVER (Fig. 3)
Each satellite will use a different ‘L1’ carrier frequency, in the range 1602·5625 to 1615·500MHz, with 0·5625MHz spacing,
but all with the same 511-bit spreading code. The normal method for receiving these signals is to use several front-ends, perhaps
with the first LNA and mixer common, but certainly with different final local oscillators and mixers.
L-BAND
DOWN
CONVERTER
GLONASS FRONT-END
FILTERS, AMPLIFIERS
AND MIXERS
FREQUENCY
GENERATOR
CHANNEL
SELECTION
AND ADC
CHANNEL
SELECTION
AND ADC
CHANNEL
SELECTION
AND ADC
CHANNEL
SELECTION
AND ADC
CHANNEL
SELECTION
AND ADC
CHANNEL
SELECTION
AND ADC
GND
15V
VSS MASTER/SLAVE VDD
SAMPLE CLK SAMP CLK
SIGN
SIGN 0
MAG
MAG 0
SIGN
MAG
SIGN 1
MAG 1
CS
SIGN
MAG
SIGN
MAG
SIGN
MAG
SIGN 2
MAG 2 GP1020
SIGN 3
MAG 3
INT OUT
SIGN 4
MAG 4
SIGN
MAG
SIGN 5
MAG 5
MASTER
CLOCK
NAVIGATION
SOLUTION
MASTERRESET
DECODE
DATA BUS (16)
ADDR BUS (8)
CONTROL 3
OSCILLATOR
FREQUENCY
SELECTION
Fig. 3 GLONASS receiver simplified block diagram
2




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GP1020CGGPKR receiver

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SIX-CHANNEL PARALLEL CORRELATOR CIRCUIT FOR GPS OR GLONASS RECEIVERS - Zarlink Semiconductor Inc