Data Sheet

ManualsBrandsWistron NeWeb ManualsElectronicsWireless Audio Module

Different label color and WNC P/Ns

are used to distinguish between TX

and RX.

General Description

The SWA54 module is a member of the VMX

family of wireless module products. The VMX

module product concept offers customers fast

time to market for point-to-multipoint mono,

stereo, or multichannel wireless audio

connection. It incorporates Skyworks newest

wireless audio chip, Sky76303-21.

As the successor to SKY76303-21, the

SKY76303-21 adds high resolution audio to

Skyworks world-class proprietary radio

protocol as well as an improved RF interface,

containing upgrades to 5 GHz band coverage

and user flexibility as well as upgraded

interference immunity. The radio retains the

core features and functions of its

predecessors including low and fixed latency

audio, superior interference immunity, and

inherent coexistence with WiFi.

The SWA54 module hardware integrates all

components necessary to complete a 5 GHz

wireless multi-client, multichannel link,

including SKY76303-21 Wireless Audio Chip,

printed diversity antennas, shield can, flash

memory, interface connector and all passive

components. Just provide power and an I2S

interface and you are ready to create a

wireless audio link.

The module measures 35 x 35 x 3.5 mm and

is provided with a 24 pin FPC connector.

The module is designed to pass FCC, CE, and

IC along with various other regional standards.

Applications

 Hi Resolution Wireless Subwoofer, Front /

Rear Speaker

 Dolby ATMOS Soundbars

 Multi-channel Soundbar

Ordering Options

SWA54-TX: Transmit module with digital audio

input

SWA54-RX: Receive module with digital audio

output

Features

 Dual-Band 5GHz (5.2 and 5.8 GHz Bands)

 FW defined TX or RX. Same Module

Hardware serves both.

 High resolution over-the-air audio and

Interfaces

 120 dB SNR end-to-end digital audio

path

 2 x I2S Digital Input / Output interface

support up to 24 bits.

 Wireless Range (Typ)

 > 30m Non-Line of Sight (NLOS) range

 > 100m Line of Sight (LOS) range

 Auto-search/synch, WIFI avoidance and

dynamic channel selection

 Sample rate converter: Support for 32 -

96kHz input sample rates

 General purpose over-the-air (OTA) serial

interface / data channel:

 11 kbps, bi-directional, full duplex

 Support for amplifier control data, meta-

data, and remote-control commands

 Low, fixed latency OTA audio (<16 ms typ)

 Inter-channel, Inter-client latency less than

5us (All clients at same sample rate)

 Dual printed PCB diversity antennas for

multipath and fading mitigation

 24 pin FPC or pin header connector

 RF parts can-shielded

 Module meets FCC part 15 / CE rules for

emissions

SWA54, 5GHz Module Datasheet

High Resolution Wireless I2S Audio, based on the Skyworks SKY76303-21, with on board RF PA

Summary of content (24 pages)

PAGE 1
SWA54, 5GHz Module Datasheet High Resolution Wireless I2S Audio, based on the Skyworks SKY76303-21, with on board RF PA General Description Features The SWA54 module is a member of the VMX family of wireless module products. The VMX module product concept offers customers fast time to market for point-to-multipoint mono, stereo, or multichannel wireless audio connection. It incorporates Skyworks newest wireless audio chip, Sky76303-21.  Dual-Band 5GHz (5.2 and 5.8 GHz Bands)  FW defined TX or RX.
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Revision History Revision 1.2 Description of Changes Initial Preliminary release Date Aug.
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SWA54 Module Datasheet Rev 1.2 SWA54 Functional Description The SWA54 module is available in 2 variations; digital input transmitter module or digital output receiver module. There are three available I2S digital audio data inputs/outputs, each of these can be configured to operate as either a master or a slave - depending on the application, the I2S ports can operate simultaneously as either inputs or outputs.
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SWA54 Module Datasheet Rev 1.2 A simple low cost implementation of sub-woofer design is shown in Figure 3. The sub amplifier consists of a PWM chip plus an output stage device, but no external MCU is required as the SWA54-RX module performs the control function using the I2C master communication port in conjunction with multiple GPIOs. The SWA54 module is configured to accept nominal 5V power from the main application board.
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SWA54 Module Datasheet Rev 1.2 I2C Master Port The I2C master port is used to communicate with external audio devices such as a sub-woofer amplifier. It is assumed that external pull up resistors are included on the application board. GPIOs 3.3V CMOS logic level GPIOs available to connect to other devices, or to use as UI supporting GPIOs for LED and button support. All supported GPIOs can be configured as outputs or inputs with configurable pull-ups/pull-downs.
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SWA54 Module Datasheet Rev 1.
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SWA54 Module Datasheet Rev 1.2 18 GPIO22/D+ Digital I/O 47 or 43 GPIO or USB ) Data Plus (2 GPIO or USB ) Data Plus (2 19 GPIO23/D- Digital I/O 46 or 42 GPIO or USB ) Data Minus (2 GPIO or USB ) Data Minus (2 20 GPIO24 Digital I/O 41 GPIO (3 21 RESETN_EXT Digital Input 37 RESET signal ) active low (4 RESET signal ) active low (4 22 GND GND Paddle (57) GND GND 23 VDD Supply Input 31, 45, 54 +5.0V input supply voltage +5.
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SWA54 Module Datasheet Rev 1.2 1 Electrical, Audio and Timing Specifications Module ESD spec. 1.1 CONDITION MIN MAX ESD Contact HBM 4kV ---- Notes: 1) HBM = ESD Human Body Model; C = 150pF, R = 330Ω ; non-operational mode. 1.2 Recommended Operating Range PARAMETER VDD, +5V Supply pin voltage MIN TYP MAX UNIT 4.5 5.0 5.5 V 55 ºC Ambient Temperature (TA) 0 RESET pin hold time 10 Power Supply Rise Time (to 4.5V) 0 1.
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SWA54 Module Datasheet 1.4 Rev 1.2 Electrical Characteristics – RF PLL Characteristics Operating Conditions: VDD =4.5 to 5.5V, TA = 0°C to +55 °C, RF Freq = 5150-5250;5725‐5875MHz, measured relative to the RF balun single‐ended I/O. Typical specifications at TA = 25°C, VDD = 5.
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SWA54 Module Datasheet 1.7 Electrical Characteristics – Audio C/CS PARAMETER Frequency Response (-3dB) Gain Flatness 1 SNR 1.8 Rev 1.2 CONDITIONS MIN 24 bit audio, 11KSps over-the-air sample rate MAX UNIT 20 5K Hz 24 bit audio, 14.8KSps over-theair sample rate 20 6.5K Hz 24 bit audio, 22KSps over-the-air sample rate 20 10K Hz 24 bit audio, 29.6KSps over-theair sample rate 20 13K Hz 24 bit audio, 44KSps over-the-air sample rate 20 20K Hz 0dB Input / Output Gain TYP ±0.
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SWA54 Module Datasheet Rev 1.2 Table 2: SWA54 I2S Timing VL VH T TLo THi low voltage level high voltage level clock period clock low period clock high period TR TF TSu THd TOd rise time fall time setup time hold time output delay bit clocks/word clock MIN -0.3V 2.4V 0.4T 0.4T TYP 0.0V 3.3V 325.5n MAX 0.4V 3.6V 0.6T 0.6T 50n 50n 25n 25n -25n 64 25n UNIT V V s NOTES s s s s s Note 1 Note 1 1/3.072MHz I2S protocol is “I2S Justified” as shown below.
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SWA54 Module Datasheet 1.9 Rev 1.2 I2C Master/Slave Communication Interface Timing (S_SCL, S_SDA) The SWA54 has both I2C slave and master interfaces available with their respective pins S_SCL, S_SDA and M_SCL, M_SDA. The interfaces operate in I2C fast-mode and can receive and transmit at up to 400 kbit/s. Bytes are 8 bits long and are transferred with the most significant bit (MSB) first. Each byte has to be followed by an acknowledge bit.
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SWA54 Module Datasheet Rev 1.
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SWA54 Module Datasheet Rev 1.2 Ordering Information Table 4: SWA54 Module Ordering Information Module Part Number SWA54 Option Code TX SWA54 RX SWA54 UFL RX Description Digital Input , FPC Connector, integrated printed PCB antennas Digital Output, FPC Connector, integrated printed PCB antennas Digital Output, FPC Connector, integrated printed PCB + UFL conn @ bottom side for external ant.
PAGE 15
SWA54 Module Datasheet Rev 1.2 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.
PAGE 16
SWA54 Module Datasheet Rev 1.2 IMPORTANT NOTE: 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. 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.
PAGE 17
SWA54 Module Datasheet Rev 1.2 IC Statement: This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.
PAGE 18
SWA54 Module Datasheet Rev 1.2 IMPORTANT NOTE: 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. 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.
PAGE 19
SWA54 Module Datasheet Rev 1.2 Professional installation is required This radio transmitter [4441A-SWA54] has been approved by Innovation, Science and Economic Development Canada 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.
PAGE 20
SWA54 Module Datasheet Rev 1.2 Client device (EUT) are prohibited from connecting directly to another client device and must be under control of an indoor AP. Client, Access Point (AP) and Subordinate are restricted to indoor operation only. Client devices cannot be used to provide connections between separate buildings or structures. Client device (EUT) has no direct connection to internet Devices are prohibited for control of or communications with unmanned aircraft systems including drones.
PAGE 21
SWA54 integration manual : SWA54 integration/comm. is through I2C interface, below contains are register settings for customer to integrate SWA54 module into their platform. ***Below host means SWA54 TX module. SWA54 TX and SWA54 RX are the same module HW, only diff. FW configuration to distinguish as SWA54 TX(host) or SWA54 RX(client). For regulation catalog, SWA54 is client only device which NO external host AP needed***Final page app. diagram tell all.
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Client device (EUT) are prohibited from connecting directly to another client device and must be under control of an indoor AP. Client, Access Point (AP) and Subordinate are restricted to indoor operation only. Client devices cannot be used to provide connections between separate buildings or structures. Client device (EUT) has no direct connection to internet Devices are prohibited for control of or communications with unmanned aircraft systems including drones.