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

Numéro de référence GP1020
Description SIX-CHANNEL PARALLEL CORRELATOR CIRCUIT FOR GPS OR GLONASS RECEIVERS
Fabricant Zarlink Semiconductor Inc 
Logo Zarlink Semiconductor Inc 





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GP1020 fiche technique
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

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