BC9824 datasheet(4/22 Pages) HOLTEK

4 / 22 page

Rev. 1.00

October 20, 2015

BC9824

Name

Parameter (Condition)

Min

Typical

Max

Unit

Comment

C/I +2ND

ACS C/I 2MHz (1Mbps)

—

-24

—

C/I -2ND

ACS C/I 2MHz (1Mbps)

—

-12

—

C/I +3RD

ACS C/I 3MHz (1Mbps)

—

-28

—

C/I -3RD

ACS C/I 3MHz (1Mbps)

—

-16

—

C/I CO

Co-channel C/I (250Kbps)

—

C/I +1ST

ACS C/I 1MHz (250Kbps)

—

-13

—

C/I -1ST

ACS C/I 1MHz (250Kbps)

—

-16

—

C/I +2ND

ACS C/I 2MHz (250Kbps)

—

-25

—

C/I -2ND

ACS C/I 2MHz (250Kbps)

—

-9

—

C/I +3RD

ACS C/I 3MHz (250Kbps)

—

-33

—

C/I -3RD

ACS C/I 3MHz (250Kbps)

—

-33

—

Note:*DeviceisESDsensitive.HBM(HumanBodyMode)isbasedonMIL-STD-883HMethod3015.8.MM

(MachineMode)isbasedonJEDECEIA/JESD22-A115.

Function Description

State Control

State Control Diagram

• Pinsignal:VDD,CE

• SPIregister:PWR_UP,PRIM_RX,EN_AA,NO_

ACK,ARC,ARD

• Systeminformation:Timeout,ACKreceived,

ARDelapsed,ARC_CNT,TXFIFOempty,ACK

packettransmitted,Packetreceived

BC9824hasbuilt-instatemachinesthatcontrolthe

statetransitionbetweendifferentmodes.

Whenautoacknowledgefeatureisdisabled,state

transitionwillbefullycontrolledbyMCU.

Power Down Mode

InpowerdownmodeBC9824isinsleepmodewith

minimalcurrentconsumption.SPIinterfaceisstillac-

tiveinthismode,andallregistervaluesareavailable

bySPI.Powerdownmodeisenteredbysettingthe

PWR_UPbitintheCONFIGregistertolow.

Standby-I Mode

BysettingthePWR_UPbitintheCONFIGregisterto

1andde-assertingCEto0,thedeviceentersstandby-I

mode.Standby-Imodeisusedtominimizeaverage

currentconsumptionwhilemaintainingshortstart-

uptime.Inthismode,partofthecrystaloscillator

isactive.ThisisalsothemodewhichtheBC9824

returnstofromTXorRXmodewhenCEissetlow.

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