N50P111 austriamicrosystems, N50P111 Datasheet - Page 9

• Manufacturer Part Number: N50P111
• Description: SW NAV JOYSTICK MOD CONTACTLESS
• Manufacturer: austriamicrosystems
• Series: EasyPoint™r
• Type: Navigation Switch, PCB Mountr

Specifications of N50P111

• Output: Contactless Magnetic Switch
• Switch Function: 2 Axis with Select
• Actuator Type: Joystick
• Termination Style: SMD (SMT) Tab
• Operating Force: 70/180gf
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Contact Rating @ Voltage: -

EasyPoint
Datasheet - U s i n g t h e N 5 0 P 111 M o d u l e
8 Using the N50P111 Module
8.1 Powering up the Module
The N50P111 module has a Power ON Reset (POR) cell to monitor the VDD voltage at startup and reset all the internal registers. After the
internal reset is completed, the POR cell is disabled in order to save current during normal operation.
If VDD drops below 2.7V down to 0.2V, the POR cell will not be enabled back, and the registers will not be correctly reseted or can get random
values.
Note: It is highly recommended to control the external RESETn signal by applying a LOW pulse of >100ns once VDD has reached 2.7V and
Figure 5. Power-up Sequence
8.2 Registers Initialization
After Power Up, the following sequence must be performed:
www.austriamicrosystems.com/N50P111
RESETn
1. VDD and VDDp Power up, and reached their nominal values (VDD>2.7V, VDDp>1.7V).
2. Initialization:
3. Perform an Offset Calibration (X and Y coordinate compensation for zero position)
4. Configure the Dead Zone Area for Wake-up function (if needed)
5. Configure the wanted Power Mode and INT function into register [0Fh] (Idle mode / Low Power Mode with Timebase configuration, INT
6. X Y coordinates are ready to be read.
VDD
VDDp reached 1.7V.
for Wake-up or Coordinates ready)
a. RESETn pulse LOW during >100ns, then RESETn HIGH
b. Loop check register [0Fh] until the value F0h or F1h is present (reset finished, registers to default values)
c. Write value 16h into register [2Dh]
(>1.7V)
VDDp
TM
2.7V
0V
External RESETn pin, and without Power on Reset (POR)
0
VDD @ t=0 between 0V
N50P111
Power up phase
and 2.7V
>100ns
>1000us
Revision 1.1
VDD
2.7V
0.2V
0V
VDD @ t=0 between
Power up phase
0V and 0.2V
Power on Reset (POR) only
>1000us
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