EDAN INSTRUMENTS ALXC28 WIFI Module User Manual
- June 16, 2024
- EDAN INSTRUMENTS
Table of Contents
ALXC28 User manual
Introduction
1.1 overview
ALXC28 is a small size, low power consumption, dual band IEEE802.11 a/b/g/n
WLAN module. It can provide network connection through SDIO, UART, SPI, PCM
and other interfaces.
The ALXC28 ,highly integrates MAC, Base band, RF, RF front end.
1.2 Hardware Block Diagram
ALXC28 wifi module integrates a Wi-Fi BB/MAC/RF SoC and RF front end.
1.3 Interface
The module includes various different host interfaces to communicate with Host
CPU. Below table lists the basic descriptions of the Wi-Fi SoC and the
interfaces.
Table 1 MCU and Interfaces
| Model | ALXC28 |
|---|---|
| Wi-Fi Technology | IEEE802.11 a/b/g/n |
| Frequency Band | 2.4GHz & 5GHz, Dual Band |
| Host Interfaces | UART x 1 |
| SDIO x 1 | SDIO 2.0, 25MHz & 50MHz, 1bit & 4bit mode |
| I2S/PCM | 16bit, 16KHz (256 kbps ) |
1.4 Package Info
1.5 PIN Description
Table 3 Pin Descriptions
No| Type| Name (main function)| Description| PIN
connection (not use )
---|---|---|---|---
1| I/O| SDIO_CMD| SDIO command|
2| I| SDIO_CLK| SDIO clock input|
3| I/O| SDIO_DATA°| SDIO data0|
4| I/O| SDIO_DATA1| SDIO data 1|
5| I/O| SDIO_DATA2| SDIO data 2|
6| I/O| SDIO_DATA3| SDIO data 3|
7| I| WL_DIV_WAKE| WLAN device wakeup| Suspended
8| O| WL_HOST_WAKE| WLAN host wakeup| Suspended
9| S| GND| Ground|
10| O| BT_UART_RTS_N| UART request send| Suspended
11| I| BT_UART_CTS_N| UART clear send| Suspended
12| I| BT_UART_RXD| UART serial receiving| Suspended
13| O| BT_UART_TXD| UART serial transmitting| Suspended
14| I| EXT_SLEEP_CLK| External sleep clock ( 32.768kHz) or Ground|
15| O| BT_HOST_WAKE| Host wakeup| Suspended
16| I| BT_DEV_WAKE| Device wakeup| Suspended
17| S| GND| Ground|
18| I| BT_PCM_IN| PCM data in| Suspended
19| O| BT_PCM_OUT| PCM data out| Suspended
20| I/O| BT_PCM_CLK| PCM clock| Suspended
21| 1/0| BT_PCM_SYNC| PCM sync| Suspended
22| I| BT_12S_DI| 12C data in| Suspended
23| I/O| BT_PCM_WS| 12S WS| Suspended
24| I/O| BT_PCM_SCK| 12S clock| Suspended
25| O| BT_PCM_DO| I2S data out| Suspended
26| S| GND| Ground|
27| S| GND| Ground|
28| S| GND| Ground|
29| I/O| RFOUT| WLAN 5G,2.4GHz and Bluetooth RF input/output|
30| S| GND| Ground|
31| S| GND| Ground|
32| I| BT_REG_ON| 6T power on/off|
33| I| WL_REG_ON| WLAN power onfoff|
34| I| VBAT| SR VBAT and PAPMU VBAT power input|
35| I| VIO| 1.8V-3.3V VDDIO input|
36| S| GND| Ground|
37| S| GND| Ground|
38| S| GND| Ground|
39| S| GND| Ground|
40| S| GND| Ground|
Feature Highlights
2.1 Wi-Fi
- Dual–band 2.4 GHz and 5 GHz IEEE 802.11 a/b/g/n.
- Single–stream IEEE 802.11n support for 20 MHz and 40 MHz channels provides PHY layer rates up to 150 Mbps for typical upper–layer throughput in excess of 90 Mbps.
- Supports the IEEE 802.11n STBC (space–time block coding) RX and LDPC (low–density parity check) TX options for improved range and power efficiency.
- Supports IEEE 802.15.2 external coexistence interface to optimize bandwidth utilization with other co–located wireless technologies such as GPS, WiMAX, or UWB
- Alternative host interface supports HSIC v1.0 (short–distance USB device)
2.2 Security
- WPA™ and WPA2™ (Personal) support for powerful encryption and authentication
- AES in WLAN hardware for faster data encryption and IEEE 802.11i compatibility
- Reference WLAN subsystem provides Cisco® Compatible Extensions (CCX, CCX 2.0, CCX 3.0, CCX 4.0, CCX 5.0)
- Reference WLAN subsystem provides Wi–Fi Protected Setup(WPS)
2.3 Network Connection Indication
Indications include:
- AP connecting
- AP connected
- AP disconnected
- Server connecting
- Server connected
- Server disconnected
Wi-Fi Specification
3.1 Wireless Specification
Table 4 2.4GHz Wireless Specification
| Features | Specification |
|---|---|
| WLAN Standards | IEEE802.11 b/g/n |
| Antenna Port | 1T/R |
| Frequency Band | 11b |
| 11g/n 20MHz | 2412-2472 MHz |
| 11n 40MHz | 2422-2462 MHz |
| Modulation | DSSS(DBPSK,DQPSK,CCK), OFDM(BPSK,QPSK,16-QAM,64-QAM) |
| Link Data Rate | 11b |
| 11g | 6,9,12,18,24,36,48,54 |
| 11n | MCS 0,1,2,3,4,5,6,7 |
Table 5 5GHz Wireless Specification
| Features | Specification |
|---|---|
| WLAN Standards | IEEE802.11 a/n |
| Antenna Port | 1T/R |
| Frequency Band | 11a/n 20MHz |
| 11n 40MHz | 5190-5795 MHz |
| Modulation | DSSS(DBPSK,DQPSK,CCK), OFDM(BPSK,QPSK,16-QAM,64-QAM) |
| Support data rates | 11a |
| 11n | MCS 0,1,2,3,4,5,6,7 |
3.2 Rx Sensitivity
Table 6 2.4GHz Rx Sensitivity
| Receiver Characteristics | TYP. | Unit |
|---|---|---|
| 1 Mbps DSSS | -99 | dBm |
| 11 Mbps CCK | -89 | dBm |
| 54 Mbps OFDM | -77 | dBm |
| MCS0 (20 MHz) | -92 | dBm |
| MCS7 (20 MHz) | -73 | dBm |
| MCS0 (40 MHz) | -89 | dBm |
| MCS7 (40 MHz) | -69 | dBm |
Table 7 5GHz Rx Sensitivity
| Receiver Characteristics | TYP. | Unit |
|---|---|---|
| 6 Mbps DSSS | -90.5 | dBm |
| 54 Mbps OFDM | -73.5 | dBm |
| MCS0 (20 MHz) | -90.5 | dBm |
| MCS7 (20 MHz) | -70.5 | dBm |
| MCS0 (40 MHz) | -87.5 | dBm |
| MCS7 (40 MHz) | -68.5 | dBm |
Federal Communications Commission (FCC) 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.
Note: 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 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.
Warning: Changes or modifications made to this device not expressly
approved by Edan Instruments, Inc. may void the FCC authorization to operate
this device.
Note: The manufacturer is not responsible for any radio or TV
interference caused by unauthorized modifications to this equipment. Such
modifications could void the user’s authority to operate the equipment.
RF exposure statement:
The transmitter must not be co-located or operated in conjunction with any
other antenna or transmitter. This equipment complies with the FCC RF
radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with a Minimum distance of 20cm
between the radiator and any part of your body.
Integration instructions for host product manufacturers according to KDB
996369 D03 OEM Manual v01r01
2.2 List of applicable FCC rules
CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the
modular transmitter.
2.3 Specific operational use conditions
This Modular Approval is limited to OEM installation for mobile and fixed
applications only. The antenna installation and operating configurations of
this transmitter, including any applicable source-based time averaging duty
factor, antenna gain, and cable loss must satisfy MPE categorical Exclusion
Requirements of 2.1091.
2.4 Limited module procedures
Not applicable.
2.5 Trace antenna designs
Not applicable
2.6 RF exposure considerations
The modular can be installed or integrated in mobile or fix devices only. This
modular cannot be installed in any portable device if without further certify
such as C2PC with SAR. This modular complies with FCC RF radiation exposure
limits set forth for an uncontrolled environment. This modular must be
installed and operated with a minimum distance of 20 cm between the radiator
and user body.
2.7 Antennas
This radio transmitter has been approved by Federal Communications Commission
to operate with the antenna types listed below, with the maximum permissible
gain indicated. Antenna types not included in this list that have a gain
greater than the maximum gain indicated for any type listed are strictly
prohibited for use with this device if without further certify such as C2PC.
| Type | Antenna type | Frequency Range | Antenna Gain |
|---|---|---|---|
| LBS-037A | PIFA Antenna | 2.4GHz – 2.5 GHz | |
| 5.15GHz – 5.85 GHz | 4.08 dBi |
3.47 dBi
2.8 Label and compliance information
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: SMQALXC28” Or “Contains FCC ID:SMQALXC28”
2.9 Information on test modes and additional testing requirements
Host manufacturer which install this modular with limit modular approval
should perform the test of radiated emission and spurious emission according
to FCC part 15C:15.247 and 15.209 requirement, only if the test result comply
with the requirement, then the host can be sold legally.
2.10 Additional testing, Part 15 Subpart B disclaimer
Host manufacturer is responsible for compliance of the host system with module
installed with all other applicable requirements for the system such as Part
15 B.
2.11 Note EMI Considerations
Host manufacture is recommended to use D04 Module Integration Guide
recommending as “best practice” RF design engineering testing and evaluation
in case non-linear interactions generate additional non-compliant limits due
to module placement to host components or properties.
2.12 How to make changes
This module is stand-alone modular. If the end product will involve the
Multiple simultaneously transmitting condition or different operational
conditions for a stand-alone modular transmitter in a host, host manufacturer
have to consult with module manufacturer for the installation method in end
system. According to the KDB 996369 D02 Q&A Q12, that a host manufacture only
needs to do an evaluation (i.e., no C2PC required when no emission exceeds the
limit of any individual device (including unintentional radiators) as a
composite. The host manufacturer must fix any failure.
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