Hw Block Diagram; Hw Block Functions; Fig 15 Block Diagram - Nokia NPL-4 Series Manual

NPL-4/5/RM-104
System Module and User Interface

HW Block Diagram

Functionally NPL-4/5 electronic compass consists some main blocks.
VBAT
UEME
GenIO01
GenIO03
also camera
UPP
GenIO
I2C inter-
Face
DCT 4
Engine
Not used functionality and features of MagIC ASIC on NPL-4/5 compass implementation.
2
• I BUS (additional communication channel)
• UART (additional communication channel)
• z - channel A/D converter

HW block functions

Magnetometer sensor (2-axis)
• x and y direction magnetic field sensitivity sensors
• set/reset circuitry for
i
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Page 46
Figure 15: Block Diagram
Ext. power supply, also for other functions
AV
VIO
DV
10nF
AV
DV
PURX
ClrX
Clk
CBUSENX
CBUSCLK
interfaces
CBUSDA
I2CCLK
I2CDA interface
UART inter-
face
MagIC
ASIC
-differential outputs to MagIC ASIC
-compensating offset effect
-improving performance and linearity
DD
Vbridge
DD
InXp
ss
InXm
ss
InYp
InYm
AVss
CBUS
SROp
100nF
SROm
I2C
SRVdd
1uF
SRVss
VBAT
Reg_Ctrl
Nokia Customer Care
VB
X-Direction
Y-Direction
GND
SET/RESET
Circuit
Offset
Circuit
Constant
current
source
Issue 2 05/05