Table of Contents
1. Overview
1.1. A43364A
1.2. A43364C
1.3. A43364x Features and Benefits
1.4. Theory of Operation
1.5. Applications
2. Approvals and Usage
2.1. Product Approvals
2.1.1. U.S.: Federal Communications Commission (FCC)
2.1.1.1. FCC Labeling Requirements
2.1.1.2. End User Manual
2.1.1.3. RF Exposure
2.1.2. Canada: Industry Canada (IC)
2.1.2.1. IC Labeling Requirements
2.1.2.2. RF Exposure
2.1.3. Europe: Conformité Européenne (CE)
2.2. Potential Interference Sources
2.2.1. WLAN
2.2.2. Classic Bluetooth
®
2.2.3. Microwave Ovens
2.2.4. Other Interference
2.3. Approved Usage
2.3.1. U.S. and Canada
2.3.2. Europe
3. Electrical Characteristics
3.1. Absolute Maximum Ratings
3.2. Operating Conditions
3.3. Digital I/O Characteristics
3.4. Pinout
3.5. Pin Description
3.5.1. Internal Connections Between the Radio and the Microcontroller
3.6. Recommended Layout
3.6.1. Module Usage Guidelines
3.7. Radio Module Details
3.7.1. A43364A
3.7.2. A43364C
3.8. Packaging Details
3.8.1. Matrix Tray Packaging
3.8.2. Tape-Reel Packaging
3.9. Soldering
3.9.1. Manual Mounting Procedure
3.9.2. Automated Mounting
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1. Overview
1
Anaren AIR for Wi-Fi A43364x modules are based on the CYW43364 chipset from Cypress. They are surface-
mounted 2.4GHz radio frequency (RF) transceivers incorporating Wi-Fi technology that conforms to the WLAN
IEEE 802.11b/g/n. The CYW43364 chipset integrates an ARM
®
Cortex
®
-M3 processor and on-chip memory
for complete WLAN subsystem functionality, minimizing the need to wake up the applications processor for
standard WLAN functions. All control lines are provided at the module level for full control of the operation. Also
incorporated in the modules are a STMicroelectronics STM32F412 ARM Cortex-M4-based microcontroller, two
26MHz crystals (one for the radio and the other for the microcontroller), the required RF matching and filtering
for regulatory compliance, and filtering for noise reduction and sensitivity.
The module is available in two variations: A43364A and A43364C. The A43364A has an integral antenna, and
the A43364C uses an external antenna through a U.FL connector. Each module measures 11mm x 19mm x
2.5mm, and are footprint compatible with each other.
The A43364x modules have received regulatory approvals for full modular devices in the United States (FCC),
Canada (IC), and Europe (ETSI). The modular approval allows the end user to place either an A43364A or an
A43364C with an approved antenna inside a finished product without having to perform costly regulatory testing
for an intentional RF radiator. Section 2.3. Approved Usage has information on the requirements for the end
user/integrator to fulfill in order to use the modules without intentional radiator regulatory testing.
1.1. A43364A
The A43364A module has an integral antenna, providing high efficiency and near-omni-directional radiation
pattern. This approach offers the lowest system cost when the application allows collocation of the radio and
antenna. See Figure 6 and Figure 7 for more information on antenna location and enclosure considerations.
1.2. A43364C
The A43364C module has a compact antenna connector that allows for locating the antenna away from the
module due to form or function, or in order to exit a metal enclosure. See Table 1 for a list of approved antennas.
1.3. A43364x Features and Benefits
Features:
• Single-band 802.11b/g/n with complete Wi-Fi functionality
• Operating voltage: VDD = 3.0V to 4.8V (powers the radio core), VDDIO = 1.8V to 3.6V (powers MCU and radio
I/O), VBAT = 1.65V to 3.6V (powers MCU’s RTC, 32kHz oscillator, and backup registers)
• Operating temperature: -30°C to +85°C*
• CYW43364 chipset with integrated ARM Cortex-M3 processor and on-chip memory for complete WLAN
subsystem functionality
•
STM32F412 ARM Cortex-M4-based microcontroller with 1MB flash memory and 256KB SRAM
• Output power: FCC compliant up to +24.3dBm, ETSI compliant up to +19.9dBm
• 37 GPIO pins available
• Interfaces include: UART, SPI, I
2
S, I
2
C, USB, CAN, JTAG, ADC, PWM and GPIO
• Connection range up to 350 feet line of sight (may vary based on connected device)
• Support for secure OTA
• RoHS compliant
• Shielded package
• LGA footprint
• Small package size: 11mm x 19mm x 2.5mm
• Approximate weight: 0.8 grams
*Module might have degraded performance below -10°C and above +55°C
due to crystal and/or chipset specifications.
1. Overview
Benefits:
•
•
•
•
•
•
2
100% RF tested in production for repeatable performance
Minimal RF and protocol experience necessary
Only requires a two-layer host PCB implementation
FCC 15.247, IC RSS-210, and IC RSS-Gen certified
Compliant with ETSI EN 300 328 V1.9.1
No regulatory “intentional radiator” testing required, and simple certification labeling can be used for integrating
the module into an end product (end product testing is still required)
1.4. Theory of Operation
The A43364x module operates in the global 2.4 GHz ISM/SRD frequency band. It can be used to implement a
variety of networks, including point-to-point, point-to-multi-point, and peer-to-peer.
Figure 1 below shows the functionality of A43364x module. Both modules operate in a similar manner with
the exception of the antenna—the A43364A communicates through a built-in antenna, and the A43364C
communicates through an external antenna attached to a U.FL antenna port.
PCB Antenna (A43364A)
or
U.FL Connector (A43364C)
Matching and Filtering
CYW43364
26MHz
Crystal
TX/RX
Chain
Power
Management
Processing Unit
(ARM-CM3)
I/O Controller
26MHz
Crystal
CTRL
SDIO
Power
Support
VDD
GPIO
JTAG
USB
GPIO
I²S
UART
PWM
Analog
Reset
VDDIO
VBAT
STM32F412
CAN
I²C
32KHz Crystal
SPI
Figure 1: The functionality of the A43364x module, using an internal antenna or U.FL connector.
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