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Saturday 11 October 2008
Products
RF, Microwave & Optoelectronics
SiGe claims smallest GPS receiver IC
Monday 12 February 2007
SiGe Semiconductor claims to have the smallest Global Navigation Satellite System (GNSS) receiver ICs for use in mobile handsets.
The SE4110S GPS receiver and the SE4120S GPS/Galileo receiver use chip-scale package technology and measure just 2.2x2.2x0.4mm.
According to the supplier, this is 70 per cent smaller than the existing 24-lead QFN-packaged versions of these devices.
The SE4120S is based on SiGe’s SE4120L, a GNSS receiver with built-in support for software-defined satellite signal processing for both GPS and Galileo.
The integrated architecture includes an on-chip high-gain LNA capable of delivering 18dB of gain at a low noise figure of 1.6 dB without the need for bulky active antennas and external amplification, said the firm.
The SE4110S is based on the SE4110L GPS receiver, which incorporates the IF filter, a linear AGC amplifier, 2-bit ADC, VCO, tank circuit, image reject mixer, PLL, LNA, and low power reference oscillator. The on-chip LNA delivers a low noise figure of 1.6dB, resulting in an overall system noise figure of 2.5dB typical.
The device also features a multi-bit output, which according to the firm increases sensitivity for software GPS applications and improves resistance to jamming and interference.
The SE4110S and SE4120S are both optimised for the lowest possible power consumption, each operating at less than 10mA from a 2.7-3.3 V supply.
The SE4110S GPS receiver and the SE4120S GPS/Galileo receiver use chip-scale package technology and measure just 2.2x2.2x0.4mm.
According to the supplier, this is 70 per cent smaller than the existing 24-lead QFN-packaged versions of these devices.
The SE4120S is based on SiGe’s SE4120L, a GNSS receiver with built-in support for software-defined satellite signal processing for both GPS and Galileo.
The integrated architecture includes an on-chip high-gain LNA capable of delivering 18dB of gain at a low noise figure of 1.6 dB without the need for bulky active antennas and external amplification, said the firm.
The SE4110S is based on the SE4110L GPS receiver, which incorporates the IF filter, a linear AGC amplifier, 2-bit ADC, VCO, tank circuit, image reject mixer, PLL, LNA, and low power reference oscillator. The on-chip LNA delivers a low noise figure of 1.6dB, resulting in an overall system noise figure of 2.5dB typical.
The device also features a multi-bit output, which according to the firm increases sensitivity for software GPS applications and improves resistance to jamming and interference.
The SE4110S and SE4120S are both optimised for the lowest possible power consumption, each operating at less than 10mA from a 2.7-3.3 V supply.
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