AS3911 datasheet(10/149 Pages) AMSCO

10 / 149 page

AS3911 – 10

ams Datasheet, Confidential: 2013-Oct [2-03]

E l ec t r i c al C h a r ac teri sti c s

IWU

Supply current in

Wake-up mode

3.6

μA

MCU_CLK), register 01h set to 80h (3V

supply mode), register 02h set to 04h

(enable Wake-up mode), register

03hset to 08h, register 31h set to 08h

(100ms timeout, IRQ at every timeout),

other registers in default state.

ICS

Capacitive sensor

supply current

1.1

MCU_CLK), register 01h set to 80h (3V

supply mode), register 02h set to 00h,

analog test mode 14, other registers in

default state.

IRD

Supply current in

Ready mode

5.4

7.5

MCU_CLK), register 01h set to C0h (3V

supply mode, disable VSP_D), register

02h set to 80h, register 03h set to 08h,

other registers in default state, short

VSP_A and VSP_D.

IAL

Supply current all

active

8.7

12.5

to C0h (3V supply mode, disable

VSP_D), register 02h set to E8h (one

channel Rx, enable Tx), register 03h set

to 08, register 0Bhset to 00, register 27h

set to FF (all RFO segments disabled),

other registers in default state, short

VSP_A and VSP_D.

ILP

Supply current all

active, low power

receiver mode

6.8

to C0h (3V supply mode, disable

VSP_D), register 02h set to E8h (one

channel Rx, enable Tx), register 03h set

to 08, register 0Bh set to 80 (low power

mode), register 27h set to FF (all RFO

segments disabled), other registers in

default state, short VSP_A and VSP_D.

Symbol

Parameter

Min

Typ

Max

Unit

Comments

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