Integrated GPS receiver architecture
First Claim
Patent Images
1. A semiconductor die comprising:
- a low noise amplifier adapted to receive a GPS input signal from a passive GPS antenna and produce an amplified GPS signal;
a RF subsystem operatively associated with said low noise amplifier and adapted to down-convert and filter said amplified GPS signal; and
sampling circuitry operatively associated with said RF subsystem and adapted to provide a digitized output signal including GPS information carried in said GPS input signal, said low noise amplifier, said RF subsystem, and said sampling circuitry formed on a single semiconductor die.
0 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a single semiconductor die having an integrated low noise amplifier, a radio frequency (RF) subsystem, and sampling circuitry for use in a GPS receiver. The low noise amplifier has electrical performance suitable to receive a GPS signal from a unity gain antenna, thereby eliminating the need for external gain or an active antenna. After being amplified, the GPS signal is processed by a RF subsystem such that the signal is filtered and downconverted to a baseband signal, and the baseband signal is digitized by the sampling circuitry.
-
Citations
24 Claims
-
1. A semiconductor die comprising:
-
a low noise amplifier adapted to receive a GPS input signal from a passive GPS antenna and produce an amplified GPS signal;
a RF subsystem operatively associated with said low noise amplifier and adapted to down-convert and filter said amplified GPS signal; and
sampling circuitry operatively associated with said RF subsystem and adapted to provide a digitized output signal including GPS information carried in said GPS input signal, said low noise amplifier, said RF subsystem, and said sampling circuitry formed on a single semiconductor die. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A semiconductor die fabricated in a SiGe semiconductor process comprising:
-
a low noise amplifier adapted to receive a GPS input signal from a unity gain antenna and produce an amplified GPS signal;
a RF subsystem operatively associated with said low noise amplifier and adapted to downconvert and filter said amplified GPS signal; and
sampling circuitry operatively associated with said RF subsystem adapted to provide a digitized output signal including GPS information carried in said GPS input signal, said low noise amplifier, said RF subsystem, and said sampling circuitry formed on a single semiconductor die fabricated in a SiGe semiconductor process. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
-
Specification