Nokia N72

Figure 100 ALS HW implementation
Table 19 ALS resistor values
Symbol R1 R2 R3 R4 R5 R6 R7 NTC-res
Value 5 kOhm
15
kOhm
30
kOhm
50
kOhm
470
kOhm
100
kohm
470
kohm
47
kOhm
ASICs
RAP ASIC
RAP ASIC is a 2G Radio Application Processor.
In general RAP consists of three separate parts:
• Processor subsystem (PSS) that includes the main processor and related functions
• MCU peripherals that are mainly controlled by MCU
• DSP peripherals that are mainly controlled by DSP
RAP core voltage (1.4 V) is generated from the EM ASIC (N2300) VCORE and I/O voltage (1.8 V) is from the EM
ASIC (N2200) VIO. The core voltage in sleep mode is 1.05 V.
EM ASIC N2200
EM ASIC N2200 includes the following functional blocks:
• Start up logic and reset control
• Charger detection
RM-180
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