5.5 Regulated Power Supply Input (VCC)

Pin

 

Name

 

Direction

 

Function

 

 

 

 

 

 

 

2

 

VCC

 

Input

 

DC power

4

 

VCC

 

Input

 

DC power

6

 

VCC

 

Input

 

DC power

8

 

VCC

 

Input

 

DC power

10

 

VCC

 

Input

 

DC power

12

 

VCC

 

Input

 

DC power

Power is supplied to the wireless modem VCC pins, from an external source.

User application circuitry should connect all VCC pins together in to carry the current drawn by the wireless modem.

The electrical characteristics for VCC are shown in the following table.

 

 

Parameter

 

 

Mode

 

 

Limit

 

 

 

 

 

 

 

 

 

 

 

VCC Supply voltage

 

 

Nominal

 

 

3.6 V

 

 

 

 

 

Min

 

 

3.2 V

 

 

 

 

 

Max

 

 

4.5 V

 

 

 

 

 

Absolute maximum limit

 

 

-0.3V to 6.5V

 

 

 

 

 

Maximum supply ripple

 

 

<100mV @<200kHz

 

 

 

 

 

 

 

<20mV @>200kHz

 

 

 

 

 

 

 

 

 

 

Maximum allowable voltage drop

 

Transmission burst

 

 

200mV

 

 

Maximum current consumed

 

 

Full power (2W) transmit

 

 

2100 mA peak

 

 

 

 

 

 

340 mA average

 

 

 

 

 

 

 

 

!

WARNING

Stresses in excess of the absolute maximum limits can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the normal Min & Max values stated. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.

LZT 123 1836

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