Pni SENtral Manual de usuario descargar pdf (Pagina 8)

PNI Sensor Corporation Doc #1018049 R03

SENtral Technical Data Sheet Page 7

Table 2-3: Operating Conditions

Parameter

Symbol

Min

Typical

Max

Units

Supply Voltage

1.6

3.3

VDC

Power-On Reset Threshold, V

REG

POR

REG

– 0.125

VDC

High Level Input Voltage

0.7*V

VDC

Low Level Input Voltage

0.3*V

VDC

High Level Output Current, V

= V

– 0.3V

-1

Low Level Output Current, V

= 0.3V

Current

Consumption @

1.8 V

Normal Operation

100 – 300

µA

Pass-Through State

µA

Standby State

µA

C Interface

Data Rate

Host Bus

3400

kbits/sec

Sensor Bus

1000

kbits/sec

Pass-Through

400

kbits/sec

Decoupling Capacitor (ESR <2)

reg

0.33

0.5

1.8

µF

Operating Temperature

-40

+25

+85

Footnotes:

1. SENtral’s current consumption in normal operation is dependent on a number of variables,

including the sensor update rates and the I

C sensor bus rate. The range given will be

typical for most customers. There is a trade-off between sensor update rates and current

consumption, as more frequent sensor update rates result in improved motion-tracking

performance, while less frequent sensor update rates result in reduced current

consumption. Faster I

C sensor bus rates result in lower current consumption.

2. Pass-Through current consumption assumes SENtral previously was in Standby State,

which is recommended, and a sensor bus rate of 400 kbits/s (Fast mode).

3. SENtral’s I

C Host Interface supports Standard, Fast, Fast Plus, and High Speed Modes.

High Speed Mode (3400 kHz) is supported with a reduced range of V

and bus

capacitance. SENtral’s I

C sensor bus interface supports Standard, Fast, and Fast Plus

Modes. Pass-Through State, which connects the sensor bus and host bus, supports

Standard and Fast Modes.

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