Magic Asic - Upp Interface - Nokia NPL-4 Series Manual

NPL-4/5/RM-104
System Module and User Interface
H3 SRVdd2 Power
supply
G4 InXm Analog
Input
H4 InXp Analog
Input
H5 InYm Analog
Input
G5 InYp Analog
Input
G7 Vbridge Analog
Output
F7 Tank- Analog
Charge Output
F8 Avdd Power
supply
E7 GndShield Ground
E8 Avss Analog
ground
MagIC ASIC – UPP interface
MagIC MagIC
Pad
Pin Name Pin Type
B2 CbusClk Digital
input
C3 Clk Digital
Input
A4 CbusDa Digital I/
O
Copyright © 2005 Nokia Corporation. All rights reserved.
Page 54
from UEME via MagIC to tank charge
capacitor (1uf)
14 Vo- to magnetic sensor XOUT-
(A) (A)
3 Vo+ to magnetic sensor XOUT+
(A) (A)
10 Vo- Magnetic sensor YOUT-
(B) (B)
16 Vo+ Magnetic sensor YOUT+
(B) (B)
4 Vcc Magnetic sensor Vbridge voltage
to tank charge (external) capacitor
UEME
GND
GND
Table 24: MagIC-UPP interface
UPP
Connection
Pin Name
CBUSCLK UPP – UEME - MagIC
bidirectional bus
GenIO3 from UPP general I/O
generated from system clock
CBUSDA UPP - UEME – MagIC
bidirectional bus
Nokia Customer Care
Vdd supply for S/R
(two power pads on
die, double bonding to
one pin)
x-axis negative input
for A/ converter
x-axis positive input
for A/ converter
y-axis negative input
for A/ converter
y-axis positive input
for A/ converter
Common voltage bias
for all sensor bridges
(2.2V) trought MagIC
ASIC
Charges the SR tank
cap during power-up
only (Vdda can go up/
down during PD)
Positive Analog Power
supply
Dedicated pin to cre-
ate a clean substrate
supply (guard ring
between analog and
digital)
Negative Analog
Power supply
Function
C bus clock, alterna-
tively system clock for
MagIC
MagIC ASIC system
clock = 13MHz
CBUS data
Issue 2 05/05