niu C22J User manual


1.
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This
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d
any
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2.
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cap
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leve
req
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y
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WAR
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devicecom
p
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itions:(1)T
h
interference
Prod
u
The C22J

m
a
bilities.The
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m
bedsFlash,
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lofthemod
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irements.
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Smartphon
e
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SmartLighti
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ING
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ctfea
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oduleis
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le,fewexte
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tionsinclud
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esignedto
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nalcompon
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medevices
C22J 
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CRules.Op
e
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armfulinte
r
f
erencethat
m
offer high

a
sfollow.
F
matchnet
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limitedtoth
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rationissu
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ference,and
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aycauseu
n
integration,
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w
orkandetc.
W
d
edtosatisf
y
efollowing:
b
jecttothef
o
(2)thisdevi
c
n
desiredope
r
ultra‐low
p
W
iththehig
h
y
customers’
u
o
llowingtwo 
c
emustacce
p
r
ation.
p
owerapplic
a
h
integration
u
ltra‐lowcos
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t
a
tion
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



3.
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G

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F
l
C22
J
1)
2)
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R


Keyf
e
eneralfeatu
Upto7GPI
2xUARTs,
D
24bitsaud
i
Operating
t
SupportsBl
l
ashfeature
s
J
modulee
m
Total2Mbit
.
RAM768KB
Ffeatures
e
ature
s
res
Os
D
ownloadan
i
oquality
t
emperature
uetooth5.0
s

m
bedsFlash
w
.

.
c
s

d Communi
range:‐20
℃
classicandl
w
ithfeature
C22J 
c

ation, clock
r
℃
~+85℃
owenergy
sbelow:
r
atecanbefrom3.2kHzto6.5MHz





4.


5.


No
1 
2 
3 
4 
5 
6 
7 
8 
9 
10
11
12
13
14
15
16
Pinla
Pinfu
PinName
GPIO1
GND
ANT
GND
GPIO32
VBAT
VBAT
GPIO31
BT_UART1_
T
BT_UART1_
BT_UART2_
BT_UART2_
T
GPIO33
AUDLP
AUDLN
GPIO12
yout
nctio
n
Type
DigitalI/
O
GND
Analog
GND
DigitalI/
O
PWR
PWR
DigitalI/
O
T
XDigitalO
RXDigitalI
RXDigitalI
T
XDigitalO
DigitalI/
O
AnalogO
AnalogO
DigitalI/
O
n
s
Desc
r
O
Gener
a
GND
RFsing
GND
O
Gener
a
Power
,
Power
,
O
Gener
a
DL_U
A
DL_U
A
UART
2
UART
2
O
Gener
a
Audio
Audio
O
Gener
a
C22J 
TOP view
r
iption
a
linput/outpu
al
a
linput/outpu
,
3.6Vmaxpo
w
,
3.6Vmaxpo
w
a
linput/outpu
A
RT1TX
A
RT1RX
2
RX
2
TX
a
linput/outpu
leftchannelp
o
rightchannel
p
a
linput/outpu
w
er
w
er
o
sitiveoutput
p
ositiveoutput




6.
7.


8.
9.

F
C
FCC
PCB
We
w
pro
d
Size
13.4(
m
Absol
u
Auxili
a
PCBA Anten
n
Anten
Please ens
u
requiremen
t
1.
2.
C
C State
m
standards:F
C
Antennawit
w
illretainco
d
uctisassur
e
m
m)*11.4(m
m
u
tem
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a: PCBA_B
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nape
r
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re the pe
a
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s if the
m
m
ent
C
CCFRTitle
4
hantennag
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ntroloverth
e
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)*2.8(mm)
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ximu
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ipme
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odule is
u
Type
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Wire
4
7Part15S
u
a
in‐3.04dBi
efinalinstall
ses,anoper
a
C22J 
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rati
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ype)
a
nces
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o
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sed in yo
u
ntenna
Antenna
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bpartCSect
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ationofthe
m
a
tingconditi
o
n
gs
o
oth antenn
a
u
r designs.
i
on15.247 
m
odulesuch
o
nonthelim
a
meets
Peak Gain
-3.04dBi
-3.04dBi
thatcomplia
itmoduleap
the follo
nceofthee
n
provalforth
e

wing
n
d
e


C22J 


modulemustbeonlyapprovedforusewheninstalledindevicesproducedbyaspecific
manufacturer.IfanyhardwaremodifyorRFcontrolsoftwaremodifywillbemadebyhost
manufacturer,C2PCornewcertificateshouldbeapplytogetapproval,ifthosechangeand
modificationmadebyhostmanufacturernotexpresslyapprovedbythepartyresponsiblefor

compliance,thenitisillegal.
FCC Radiation Exposure Statement
Themodulecanbeinstalledorintegratedinmobileorfixdevicesonly.Thismodulecannotbe 
installedinanyportabledevice.ThismodularcomplieswithFCCRFradiationexposurelimitsset 
forthforanuncontrolledenvironment.Thistransmittermustnotbeco‐locatedoroperatingin
conjunctionwithanyotherantennaortransmitter.
IftheFCCidentificationnumberisnotvisiblewhenthemoduleisinstalledinsideanotherdevice,

thentheoutsideofthedeviceintowhichthemoduleisinstalledmustalsodisplayalabel
referringtotheenclosedmodule.Thisexteriorlabelcanusewordingsuchasthefollowing:
“ContainsTransmitterModuleFCCID:2AZ6G‐C22JOrContainsFCCID:2AZ6G‐C22J”
OEM INTEGRATION INSTRUCTIONS:
ThisdeviceisintendedonlyforOEMintegratorunderthefollowingconditions:
Themodulemustbeinstalledinthehostequipment,andthetransmittermodulemaynotbe

co‐locatedwithanyothertransmitterorantenna.Themoduleshallbeonlyusedwiththe 
internalon‐boardantennathathasbeenoriginallytestedandcertifiedwiththismodule.
Externalantennasarenotsupported.Aslongasthese3conditionsabovearemet,further

transmittertestwillnotberequired.
However,theOEMintegratorisstillresponsiblefortestingtheirend‐productforanyadditional
compliancerequirementsrequiredwiththismoduleinstalled(forexample,digitaldevice

emissions,PCperipheralrequirements,etc.).Theend‐productmayneedVerificationtesting, 
DeclarationofConformitytesting,aPermissiveClassIIChangeornewCertification.Please 
involveaFCCcertificationspecialistinordertodeterminewhatwillbeexactlyapplicableforthe 
end‐product.
Validityofusingthemodulecertification:
Intheeventthattheseconditionscannotbemet(forexamplecertainlaptopconfigurationsor

co‐locationwithanothertransmitter),thentheFCCauthorizationforthismoduleincombination
withthehostequipmentisnolongerconsideredvalidandtheFCCIDofthemodulecannotbe

usedonthefinalproduct.Inthesecircumstances,theOEMintegratorwillberesponsiblefor 
re‐evaluatingtheendproduct(includingthetransmitter)andobtainingaseparateFCC
authorization.Insuchcases,pleaseinvolveaFCCcertificationspecialistinordertodetermineifa

PermissiveClassIIChangeornewCertificationisrequired.
UpgradeFirmware:
ThesoftwareprovidedforfirmwareupgradewillnotbecapabletoaffectanyRFparametersas

certifiedfortheFCCforthismodule,inordertopreventcomplianceissues.
Endproductlabeling:
Thefinalendproductmustbelabeledinavisibleareawiththefollowing:“Contains2AZ6G‐C22J”.
Informationthatmustbeplacedintheendusermanual:
TheOEMintegratorhastobeawarenottoprovideinformationtotheenduserregardinghowto
installorremovethisRFmoduleintheuser'smanualoftheendproductwhichintegratesthis
module.Theendusermanualshallincludeallrequiredregulatoryinformation/warningasshow

inthismanual.
Whenthemoduleisinstalledinsideanotherdevice,theusermanualofthehostmustcontainbelow
warningstatements;

C22J 

1. Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowingtwoconditions:
(1) Thisdevicemaynotcauseharmfulinterference,and
(2) (2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause  undesired
operation.
AnyChangesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliance
 couldvoid
theuser'sauthoritytooperatetheequipment.
Note:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,
pursuanttopart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonable
 protectionagainst
harmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates,
 usesandcanradiateradio
frequencyenergyand,ifnotinstalledandusedinaccordancewiththe
 instructions,maycauseharmful
interferencetoradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurin
particularinstallation.Ifthisequipmentdoescause
 harmfulinterferencetoradioortelevisionreception,
whichcanbedeterminedbyturningthe
 equipmentoffandon,theuserisencouragedtotrytocorrectthe
interferencebyoneormore
 ofthefollowingmeasures:
—Reorientorrelocatethereceivingantenna.
—Increasetheseparationbetweentheequipmentandreceiver.
—Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected.
—Consultthedealeroranexperiencedradio/TVtechnicianforhelp.
2. Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliance  couldvoidthe
user'sauthoritytooperatetheequipment.Thedevicesmustbeinstalledandused  instrictaccordancewith
themanufacturer’sinstructionsasdescribedintheuserdocumentationthatcomeswiththeproduct.Any
companyofthehostdevicewhichinstallthismodularwithlimitmodularapprovalshouldperformthetest
ofradiated&conductedemissionandspuriousemission,etc.accordingtoFCCCFRPart15C:15.247and
15.209&15.209,15BclassB
 requirement,OnlyifthetestresultcomplywithFCCCFRPart15C:15.247and
15.209&15.209,
15BclassBrequirement thenthehostcanbesoldlegally.

