Asics; Rapido Asic; Em Asic N2300; Em Asic N2200 - Nokia n81 Service Manual

RM-179; RM-223
System Module and User Interface
Figure 72 Hall sensor connection

ASICs

RAPIDO ASIC

Rapido ASIC is a 3G Radio Application Processor.

EM ASIC N2300

The EM ASIC (N2300) includes the following functional blocks:
• Core supply generation
• Charge control circuitry
• Level shifter and regulator for USB/FBUS
• Current gauge for battery current measuring
• LED driver for backlights
• Digital interface (CBUS)

EM ASIC N2200

The EM ASIC (N2200) includes the following functional blocks:
• Start up logic and reset control
• Charger detection
• Battery voltage monitoring
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