Figure 1	Figure 2
A designer can implement a GPS receiver in many ways using a chip set from SiRF or other vendors. For low-volume applications, an assembled and fully tested module may be more cost-effective than a chip-level design.	For high-volume designs, a fully integrated chip-level design minimizes the bill of materials and, therefore, the cost.
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Figure 3	Figure 4
Interfaces such as the PC Card (formerly, PCMCIA) allow designers to place the GPS receiver on a removable modular card yet still harness the horsepower of the host CPU.	For PC applications, designers can embed the GPS chip set on the motherboard or place it on an ISA- or a PCI-bus card and, in all cases, leverage the host CPU.
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