The PMB 2520 Hammerhead is a IC sulution for GPS that producted by the Infineon Technologies. It allows the usage of assistance data by surpporting A-GPS standards.
Modules of the Hammerhead
The Hammerhead consists of the following modules:
RF front-end with on-chip, high gain and low noise, LNA, I/Q mixers, on-chip polyphase complex IF filter, digitally controlled AGC, and 3-bits ADC for the I and Q paths.
Sigma-Delta RF PLL with on-chip PCO and on-chip loop filter.
Embedded PLL and NCO for baseband clock generation.
Multiple channels digital mixers and parallel correlator engines to enable real time correlation of the PRN code for up to 14 satellites.