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The flip phone architecture

A clear way in which the cellular phone manufacturer can differentiate is through the use of optimized hardware. The core requirement for certain power supplies has reached a point of stability. For example, a popular voltage seen in the cellular handset is 1.8V core and 3.0V for I/O devices such as a baseband processor. For this type a voltage a certain type and range of power is always needed. A modern day cellular handset is shown in Figure 1. The typical power blocks inside a cellular handset includes; the main processor, the modem, the peripherals, the energy system, and the flip section. Each section has distinct power supply requirement which can be easily quantified.

Figure 1 - Modern day flip phone architecture

The Top Flip

The flip phone platform provides a unified power platform for the ODM / OEM provider. The top level flipper architecture is shown next.

Figure 2 -- Top flip architecture

Figure 3 - The flip architecture in detail

Page 2: Processor/main board platform
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