LiteOn QCA6174A-3 User manual

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USER’S MANUAL
WCBN3515A
QCA6174A-3
Version 1.5
Change History
Revision
Date
Author
Change List
Version 1.0
2019/02/11
Peggy Hsu
Preliminary
Version 1.1
2019/10/04
Peggy Hsu
Modify operating temperature
Modify packing drawing
Update module photo
Remove BT function description
Version 1.2
2020/11/25
Peggy Hsu
Update TX/RX specification
Add power consumption specification
Change mechanical drawing
Change module label
Change module photo
Change packing drawing
Add FCC statement
Version 1.3
2021/02/17
Peggy Hsu
Add output power spec (5M/10M)
Version 1.4
2021/02/28
Peggy Hsu
Add power sequence
Version 1.5
2021/03/03
Peggy Hsu
Modify FCC statement
* This document contains confidential proprietary information and is property of LTC. The contents of
this document should not be disclosed to unauthorized persons without the written consent of LTC.

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DESCRIPTION
QCA6174A-3 is a wireless local area network(WLAN) solution to support 2x2 multiple input,
multiple output (MIMO) with two spatial streams IEEE802.11 a/b/g/n/ac WLAN standards.
PRODUCT FEATURES
Support low power SDIO3.0 interface for WLAN
Highly integrated wireless local area network (WLAN) system-on-chip (SoC) for
5GHz 802.11ac, or 2.4/5 GHz 802.11n WLAN applications.
Supports 20/40 MHz at 2.4 GHz and supports 20/40/80 MHz at 5 GHz (SW PL
determines 2.4 GHz HT40/VHT 40 support)
Support external PA and LNA with control logics
Pb free, RoHS compliant, and halogen free.

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PRODUCT SPECIFICATIONS
MAIN CHIPSET
Qualcomm QCA6174A-3
FUNCTIONAL SPECIFICATIONS
Wi-Fi Function
Standard
IEEE802.11a; IEEE802.11b; IEEE 802.11g; IEEE 802.11n;
IEEE802.11ac
Bus Interface
SDIO 3.0
Data Rate
802.11a:
54, 48, 36, 24, 18, 12, 9, 6 Mbps
802.11b:
11, 5.5, 2, 1 Mbps
802.11g:
54, 48, 36, 24, 18, 12, 9, 6 Mbps
802.11n:
MCS 0 to 7 for HT20MHz
MCS 0 to 7 for HT40MHz
802.11ac:
MCS 0 to 9 for HT80MHz
Media Access Control
CSMA/CA with ACK
Modulation Technique
802.11a:
64QAM, 16QAM, QPSK, BPSK
802.11b:
CCK, DQPSK, DBPSK
802.11g:
64QAM, 16QAM, QPSK, BPSK
802.11n:
64QAM, 16QAM, QPSK, BPSK
802.11ac:
256QAM, 64QAM, 16QAM, QPSK, BPSK
Network Architecture
Infrastructure mode
Operation Channel
2.4GHz
11: (Ch. 1-11) –United States
13: (Ch. 1-13) –Europe
14: (Ch. 1-14) –Japan
5GHz
21: USA
19: EU
8: Japan
Frequency Range
802.11bg
2.400 ~ 2.4835 GHz
802.11a
5.15 ~ 5.85 GHz

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Operating Voltage
5 V ±5% I/O supply voltage
Power Consumption
Mode
Average
Peak
2.4G
5G
2.4G
5G
TX
250mA 250mA 1A 1.3A
30mA 40mA 1A 1.3A
2mA
RX
Standby
Operating Voltage
3.3 V ±5% I/O supply voltage
Power Consumption
Mode
Average
Peak
2.4G
5G
2.4G
5G
TX
130mA 200mA 250mA 450mA
130mA 200mA 250mA 450mA
10mA
RX
Standby
Operating Voltage
1.8 V ±5% I/O supply voltage
Power Consumption
Mode
Average
Peak
2.4G
5G
2.4G
5G
TX
15mA 15mA 50mA 50mA
15mA 15mA 50mA 50mA
10mA
RX
Standby
Antenna Type
Dual MHF Antenna connectors for WiFi
RECOMMENDED OPERATION CONDITIONS
Symbol
Parameter
Min
Typ
Max
Units
VDD33
3.3V Supply Voltage
3.135
3.3
3.465
V
VDD_1P8
Voltage supply
1.71
1.8
1.89
V

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MECHANICAL

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ENVIRONMENTAL
OPERATING
Operating Temperature: -10 to 70 C (14 to 158 F)
Relative Humidity: 5-90% (non-condensing)
STORAGE
Temperature: -40 to 80 C (-40 to 176 F)
Relative Humidity: 5-95% (non-condensing)

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WARNINGS
FCC Statement:
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 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 a 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 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.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate this equipment.
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)
this device must accept any interference received, including interference that may
cause undesired operation.
For product available in the USA/Canada market, only channel 1~11 can be operated.
Selection of other channels is not possible.
This device and its antenna(s) must not be co-located with any other transmitters
This device and its antenna(s) must not be co-located or operating in conjunction
with any other antenna or transmitter
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 20 cm between the radiator & your body.
This module is intended for OEM integrator. The OEM integrator is responsible for the
compliance to all the rules that apply to the product into which this certified RF module
is integrated.
Additional testing and certification may be necessary when multiple modules are
used.

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20 cm minimum distance has to be able to be maintained between the antenna and
the users for the host this module is integrated into. Under such configuration, the
FCC radiation exposure limits set forth for an population/uncontrolled environment
can be satisfied.
Any changes or modifications not expressly approved by the manufacturer could void
the user's authority to operate this equipment.
This module has been approved to operate with the antenna types listed below, with
the maximum permissible gain indicated.
Antenna
Type
Model
Number
Gain(dBi)
2400-2483.5MHz
5150-5250MHz
5725-5850MHz
Dipole
ANW-3001
2.8
3.5
4.6
Patch
Patch-3001
3.6
4.6
3.2
USERS MANUAL OF THE END PRODUCT:
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.
The antenna(s) used for this transmitter must be installed to provide a separation
distance of at least 20 cm from all persons.
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)
this device must accept any interference received, including interference that may
cause undesired operation.
This device and its antenna(s) must not be co-located or operating in conjunction with
any other antenna or transmitter.
LABEL OF THE END PRODUCT:
The host product must be labeled in a visible area with the following " Contains FCC
ID: PPQ-WCBN3515A ".
The end product shall bear the following 15.19 statement: 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) this device must accept any
interference received, including interference that may cause undesired operation.
This module has been approved under stand-alone configuration.
OEM integrator has be limited the operation channels in channel 1-11 for 2.4GHz
band.
The separate approval is required for all other operating configurations, including
portable configurations with respect to Part 2.1093 and different antenna
configurations
The information on how to configure test modes for host product evaluation for

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different operational conditions for a stand-alone modular transmitter in a host, ,
versus with multiple, simultaneously transmitting modules or other transmitters in a
host can be found at KDB Publication 996369 D04
Appropriate measurements (e.g. 15 B compliance) and if applicable additional
equipment authorizations (e.g. SDoC) of the host product to be addressed by the
integrator/manufacturer.
This module is only FCC authorized for the specific rule parts 15.247, 15.407 listed on
the grant, and the host product manufacturer is responsible for compliance to any
other FCC rules that apply to the host product as being Part 15 Subpart B compliant.
Japan Statement:
5GHz band (W52, W53): Indoor use only