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GP2010 Dataheets PDF



Part Number GP2010
Manufacturers Mitel Networks Corporation
Logo Mitel Networks Corporation
Description GPS Receiver RF Front End
Datasheet GP2010 DatasheetGP2010 Datasheet (PDF)

GP2010 GPS Receiver RF Front End Supersedes edition in August 1996 Global Positioning Products Handbook, HB4305-1.0 DS4056 - 3.4 October 1996 The GP2010 is Mitel Semiconductor second generation RF Front-end for Global Positioning System (GPS) receivers. The GP2010 uses many innovative design techniques and a leading-edge bipolar process to offer a low power, low cost and high reliability RF Front End solution . The GP2010 is designed to operate from either 3 or 5 Volt power supplies. The input .

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GP2010 GPS Receiver RF Front End Supersedes edition in August 1996 Global Positioning Products Handbook, HB4305-1.0 DS4056 - 3.4 October 1996 The GP2010 is Mitel Semiconductor second generation RF Front-end for Global Positioning System (GPS) receivers. The GP2010 uses many innovative design techniques and a leading-edge bipolar process to offer a low power, low cost and high reliability RF Front End solution . The GP2010 is designed to operate from either 3 or 5 Volt power supplies. The input to the device is the L1 (1575.42MHz) CoarseAcquisition (C/A) code Global Positioning signal from an antenna (via a low-noise pre-amplifier). The output is 2-bit quantised for subsequent signal processing in the digital domain. The GP2010 contains an on-chip synthesiser, mixers, AGC and a quantiser which provides Sign and Magnitude digital outputs. A minimum of external components is required to make a complete GPS front-end. The device has been designed to operate with the GP2021 12-channel Global Positioning Correlator, and DW9255 SAW filter, both also available from Mitel Semiconductor. Pin 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 22 21 20 19 18 17 16 15 14 13 12 34 35 36 37 38 39 40 41 42 43 44 GP2010 GP44 Name Name IF Output PLL Filter 1 PLL Filter 2 VEE (OSC) VCC (OSC) VEE (OSC) VEE (REG) PRef PReset VEE (IO) CLK MAG SIGN OPC IKOPC IK+ VDD (IO) PDN TEST LD VEE (DIG) AGC AGC + 11 10 9 8 7 6 5 4 3 2 1 Pin 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 FEATURES s Low Voltage Operation (3V - 5V) s Low Power - 200mW typ. (3V supply) s C/A Code Compatible s On-chip PLL Including Complete VCO s Triple Conversion Receiver s 44-Lead Surface Mount Quad Flat-Pack Package s Sign and Magnitude Digital Outputs s Compatible with GP2021 CMOS Correlator APPLICATIONS s C/A Code Global Positioning by Satellite Receivers s Time Standards s Navigation s Surveying ORDERING INFORMATION The GP2010 is available in 44 pin Quad Flat pack (gullwing formed leads) to Industrial (-40°C to +85°C) grade. VCC (DIG) REF 2 REF 1 VCC (RF) VEE (RF) VEE (RF) RF Input VEE (RF) VEE (RF) VCC (RF) O/P 1O/P 1+ VCC (2) I/P 2I/P 2+ VEE (IF) VEE (IF) O/P 2O/P 2+ VCC (3) I/P 3I/P 3+ Fig. 1 Pin connections - top view RELATED PRODUCTS AND PUBLICATIONS Part DW9255 GP2021 GPSBuilder-2 GP2010 GP2015 GP2015 Description 35.42MHz SAW Filter Twelve-Channel Correlator Twelve-Channel GPS receiver development system Design with the GP2010 Small RF Format Front End Design with the GP2015 Data Reference DS3861 DS4057 DS4004 AN4364 DS4374 AN4533 ORDERING CODE GP2010 IG GPBR Industrial - Plastic 44-pin PQFP GP2010 ABSOLUTE MAXIMUM RATINGS (Non-simultaneous) Max. Supply Voltage 7V Max. RF Input +15dBm Max. voltage on any pin VCC/VDD + 0.5V except LD (pin 19) and PReset (pin 9), which are 5.5V Min. voltage on any pin VEE - 0.5V Storage Temperature -65°C to +150°C Operation Junction Temperature -40°C to +150°C 10MHz Reference Input 1.5V pk -pk IF STRIP The input signal to the GP2010 is the GPS L1 signal received via an antenna and a suitable LNA. The L1 input is a spread spectrum signal at 1575.42MHz with 1.023Mbps BPSK modulation. The signal level at the antenna is about -130dBm, spread over a 2.046MHz bandwidth, so the wanted signal is actually buried in noise. The high RF input compression point of the GP2010 means that with subsequent IF filtering it is possible to reject large out of band jamming signals, in particular 900MHz as used by mobile telephones.The on-chip PLL generates the first local-oscillator frequency at 1400MHz. The output of the front-end mixer (Stage 1) at 175.42 MHz can then be filtered before being applied to the second stage. The double-balanced stage 1 mixer outputs are open-collectors, and require external dc bias to VCC. The second stage contains further gain and a mixer with a local oscillator signal at 140 MHz giving a second IF at 35.42 MHz. The second stage mixer is also double-balanced with open-collector outputs requiring external dc bias to VCC. The signal from stage 2 is passed through an external filter with a 1dB bandwidth of 1.9MHz. The performance of this filter is critical to system performance and it is recommended that a SAW filter is used (part number DW9255, also available from Mitel Semiconductor). The output of the filter then feeds the main IF amplifier. This includes 2 AGC amplifiers and a third mixer with a local oscillator signal at 31.111 MHz giving a final IF at 4.309 MHz. There is an on-chip filter after the third mixer which provides filtering centred on 4.309 MHz. The IF output, which has 1kΩ output impedance, is provided for test purposes. All of the signals within the IF amplifier are differential including the filter inputs and outputs, except the IF output (pin 1), to reduce any common mode interference. ESD PROTECTION The GP2010 device is static sensitive. The most sensitive pins withstand a 750V test by the human body model. Theref.


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