Wistron NeWeb SWA12 Wireless Audio Module User Manual

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Document ID	1647584
Application ID	vY6PJK7EhTGNifnDqIfhgw==
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Date Submitted	2012-03-02 00:00:00
Date Available	2012-03-02 00:00:00
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Document Title	Microsoft Word - AVMD6200-SWA12_Module_Brief_092811.doc
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Document Author:	kchip

AudioMagic™ AVMD6210-SWA12
Preliminary Module Brief
Point-to-point AVMD6210-SWA12TX/RX modules for Stereo and Mono
Wireless Audio Systems, based on Avnera’s AV6210 IC
General Description
Features
Every consumer wants to be free from wires,
but it has been challenging to find a low-cost,
high-quality, easy-to-use wireless audio
solution for the wireless subwoofer market.
Avnera’s proprietary wireless system takes a
new approach to wireless audio. The wireless
protocol was designed from the ground up and
delivers uncompressed mono or stereo audio,
with fixed latency and variable over the air
data rate support to eliminate interference
problems at the best possible audio quality.
Avnera’s wireless modules offer a low-touch,
easy-to-integrate wireless audio solution and
enable fast time to market by already solving
the problem associated with FCC certification,
antenna tuning and board optimization.
Modules based on Avnera’s AV6200 silicon
provide
breakthrough
wireless
audio
functionality with fixed low-latency point-topoint transport of uncompressed mono PCM
audio data at up to 48KHz, 16-bit resolution
using digital (I2S) interfaces.
Applications
Wireless Subwoofers
Stereo audio channel transmission
Audio Interfaces
I2S Digital Input Interface with 93dB
end-to-end digital audio path
Support for >15m range
Frequency range: 2.4 GHz ISM band,
continuous dynamic frequency selection
Forward error correction coding, error
detection, and audio-specific error
concealment
Custom Dual onboard printed PCB antennas
for multipath and fading mitigation
Auto-search/synch and dynamic channel
selection
Low, fixed latency of 16ms, suitable for
video lip-synch
Connector: 24 position 0.5mm flex cable
connector for maximum mounting flexibility
in the system.
Sample rate converter: Support for 16, 20,
24, and 32 bit PCM words at 8,16, 22.05,
24, 32, 44.1, and 48 kHz
General purpose over-the-air (OTA) serial
interface:
2 kbps, bi-directional, full duplex
Support for meta-data and remote
control commands
Ordering Options
AVMD6200-SWA12 TXD: Transmit module
with digital audio input and integrated printed
PCB antennas
AVMD6200-SWA12 RXD: Receive module
with digital audio output and integrated printed
PCB antennas
AVNERA CORPORATION | 16505 NW BETHANY COURT SUITE 100 | BEAVERTON, OREGON 97006, U.S.A. | MAIN +1.503.718.4100 | FAX +1.503.718.4101 | WWW.AVNERA.COM
AVNERA PROPRIETARY & CONFIDENTIAL | PROVIDED UNDER NDA
AudioMagic AVMD6210-SWA12 Module Brief
PRELIMINARY v0p1
4 AVMD6210-SWA12- Connector Information
Table 1 shows the module connector pin out for the SWA12. A goal of the design is to have the exact same pin out for
both the Tx and Rx modules. The module function is completely determined by firmware.
The module pins provide the capability to use either SPI slave or I2C slave interfaces – these are mutually exclusive. If an
I2C slave host interface is used GPIOs 2 and 3 can be used for general purpose I/O. In addition, the SPI master port is
brought out to the connector to facilitate direct programming of the module flash memory if required. A single I2S port is
brought to the connector and can be configured to be either a slave or master port. The MCLK pin can be an input or
output to offer optimal flexibility. Likewise the I2S audio pin can be an input or output to implement either audio Tx or Rx.
In addition, there are 5 other GPIOs that can be used exclusively for system features such as pair button, interrupt, LEDs
etc. The reset pin allows for an external device to reset the module but must be driven from an open drain device to avoid
timing issues with the module reset.
Note: the connector pin out is subject to change throughout the development process to optimize the PCB
routing.
SWA12 Pin-Out
No
Pin Name
VDD
I/O
AV6200
Pin Description
+5V +/- 10%
VDD
GPIO
I/O
GPIO13 pin 28
Function defined by firmware application.
+5V +/- 10%
GPIO
I/O
GPIO18 pin 43
Function defined by firmware application.
GPIO
I/O
GPIO19 pin 37
Function defined by firmware application.
Reset
Pin 24
Driven from open drain external source. Can be left open.
I2C_SCL_S / S_MISO
I/O
GPIO5
pin 44
I2C slave or SPI slave port
I2C_SDA_S / S_MOSI
I/O
GPIO4
pin 45
I2C slave or SPI slave port
I2C_SCL_M
GPIO22 pin 41
I2C master port or GPIO
10
I2C_SDA_M
I/O
GPIO21 pin 42
I2C master port or GPIO
11
S_SCLK
GPIO3
SPI slave port or GPIO
12
GND
13
BCK1
I/O
GPIO15 pin 26
I2S port
14
WCLK1
I/O
GPIO16 pin 25
I2S port
15
S_SSB
GPIO2
SPI slave port or GPIO
16
MCLK
I/O
GPIO10 pin 31
I2S port or GPIO
17
ADOUT/ADIN1
I/O
GPIO14 pin 27
I2S port
18
M_SSB
GPIO6
pin 36
SPI master port
19
M_SCLK
GPIO7
pin 35
SPI master port
20
M_MOSI
GPIO8
pin 34
SPI master port
21
M_MISO
GPIO9
pin 33
SPI master port
22
GPIO
I/O
GPIO11 pin 30
Function defined by firmware application.
23
GPIO
I/O
GPIO12 pin 29
Function defined by firmware application.
24
GND
pin 46
Ground
pin 47
Ground
Table 1 – Rx and Tx SWA12 Module Pin-Out
CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE
AVNERA PROPRIETARY & CONFIDENTIAL
AudioMagic AVMD6210-SWA12 Module Brief
PRELIMINARY v0p1
5 AVMD6210-SWA12 Mechanical Dimensions
26mm
1mm x 3mm
location slots
3 places
60mm
25mm
Shield Can
Approx 23 x 25mm
33mm
23mm
Pin 1
Connector
Mounting tabs
around perimeter
of PCB tbd
Mounting Hole
Figure 3 - AVMD6210-SWA12 mechanical dimensions
CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE
AVNERA PROPRIETARY & CONFIDENTIAL
AudioMagic AVMD6210-SWA12 Module Brief
PRELIMINARY v0p1
6 Electrical Specifications
6.1
Absolute Maximum Ratings
Absolute Maximum Ratings (AMR) are stress ratings only. AMR corresponds to the maximum value that can be applied
without leading to instantaneous or very short-term unrecoverable hard failure (destructive breakdown). Stresses beyond
those listed under AMR may cause permanent damage to the device.
Functional operation of the device at these or any other conditions beyond those indicated under “Recommended
Operating Range” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may adversely
affect device reliability.
Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at
the test conditions specified.
CONDITION MIN
MAX
VDD Supply Voltage Input
-0.3V
6.0V
Input Voltage Range – Digital
Inputs1
-0.3V
3.6V
Operating Temperature
-20ºC
+80ºC
Storage Temperature
-40ºC
+100ºC
Assembly Temperature
TBD
Static Discharge Voltage – HBM
Static Discharge Voltage – MM
TBD
TBD
Notes:
Note 1: Digital GPIO Pins are 5V Tolerant when programmed as Inputs.
Note 2: Terminology: HBM => ESD human body model
Note 3: Terminology: MM => Machine model
6.2
Recommended Operating Range
PARAMETER MIN
VDD Supply pin voltage
Ambient Temperature (TA)
CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE
TYP
MAX
UNIT
4.5
5.5
70
ºC
AVNERA PROPRIETARY & CONFIDENTIAL
AudioMagic AVMD6210-SWA12 Module Brief
6.3
PRELIMINARY v0p1
Electrical Characteristics
Test Conditions: TA=+25ºC, VDC=+5.0V
Table 2 - AVMD6210-SWA12 Electrical Characteristics
PARAMETER CO
NDITIONS
RF Frequency Range
MIN
TYP
2402
RF Transmit power
RF Receiver sensitivity
MAX
UNIT
2478
MHz
-3
dBm
-86
-89
dBm
Range (LOS)
>15
Audio SNR I2S Input/Output2
I2S end to end 16bit mode
90
93
dB
Audio SNR I2S Input/Output2
I2S end to end 12bit mode
70
72
dB
Analog Audio THD+N
tbd
dB
Audio Bandwidth (end to end I2S)
0.1dB point 20KHz mode
20
KHz
Audio Bandwidth (end to end I2S)
0.1 dB point 5KHz mode
KHz
Current consumption
VDC(Active Audio mode)
50
mA
Note 1: AV6200 IC specification, measure by conducted u.fl connection at IC
Note 2: AVMD6200-SWA12-TX/RX
Note 3: Measured at -3dbFS input, A weighting. Output is taken, using external DAC on Avnera development board.
CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE
AVNERA PROPRIETARY & CONFIDENTIAL
AudioMagic AVMD6210-SWA12 Module Brief
PRELIMINARY v0p1
7 Firmware Architecture
7.1
Standard Firmware Options
Avnera provides standard firmware images that implement basic wireless link operation. Each of these images uses 1
GPIO as a link status indicator and another GPIO is an input used to get the module into pairing mode as illustrated in
Figure 4.
Figure 4 – Standard Module Firmware Topology
The basic firmware image options supported are:
Tx Module
SWA12TX-44/16-Slave
SWA12TX-44/16-Master
SWA12TX-11/16-Slave
SWA12TX-11/16-Master
Over-the-Air Audio Format
44KSps @ 16bit Stereo
44KSps @ 16bit Stereo
11KSps @ 16bit Mono
11KSps @ 16bit Mono
I2S Configuration
I2S Slave
I2S Master
I2S Slave
I2S Master
Rx Module
SWA12RX-44/16-Slave
SWA12RX-44/16-Master
SWA12RX-11/16-Slave
SWA12RX-11/16-Master
Over-the-Air Audio Format
44KSps @ 16bit Stereo
44KSps @ 16bit Stereo
11KSps @ 16bit Mono
11KSps @ 16bit Mono
I2S Configuration
I2S Slave
I2S Master
I2S Slave
I2S Master
Table 3 – Standard Firmware Image Support
7.2
Custom Firmware Options
Beyond the basic audio, link status and pairing functionality, it is possible for Avnera to customize the firmware
functionality to support advanced system features such as over-the-air communication by means of either an I2C or SPI
host interface.
Customization may consist of features such as:
•
•
•
Defined command and control API through I2C/SPI host interface
Data transfer between the Tx and Rx modules
Custom apps running on the module MCU to implement I2C master port or specific GPIO input/output functions
CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE
10
AVNERA PROPRIETARY & CONFIDENTIAL
AudioMagic AVMD6210-SWA12 Module Brief
7.3 Firm
PRELIMINARY v0p1
ware Upgrades
The possible interfaces that can be used for upgrades of the flash memory device are shown in Figure 5.
With the standard firmware implementation, firmware upgrades are achieved by using the module SPI master port to
directly program the module flash device. Avnera provides a GUI application that runs on a PC to facilitate direct SPI
programming.
By means of additional custom firmware, programming of the module flash device can be achieved via the slave I2C or
SPI host interfaces.
It is also possible to implement over-the-air programming of the Rx module so all elements of a system can be upgraded
through a single host interface. This requires working with customer to define the functionality and architecture required as
well as the customer host interface and API to the Tx module.
SWA12 Module
Over the Air
Interface for Rx
Module
Avnera AV6210
Wireless
Transceiver
I2C Host
I/F
SPI Host
I/F
Custom Host
Interfaces
SPI
Master
Interface
Flash Memory
Device
Direct Flash
Progamming
Figure 5 – Flash Programming Interface Options
8 Application information
8.1 Applica
tion circuit
Application schematics are available from Avnera Support.
CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE
11
AVNERA PROPRIETARY & CONFIDENTIAL
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.
This device and its antenna(s) must not be co-located or operation 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 20cm between the radiator &
your body.
IMPORTANT NOTE:
This module is intended for OEM integrator. The OEM integrator is still responsible for the FCC
compliance requirement of the end product, which integrates this module.
20cm 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.
USERS MANUAL OF THE END PRODUCT:
The end user has to be informed that the FCC radio-frequency exposure guidelines for an uncontrolled
environment can be satisfied. The end user has to also be informed that any changes or modifications
not expressly approved by the manufacturer could void the user's authority to operate this equipment.
If the size of the end product is smaller than 8x10cm, then additional FCC part 15.19 statement is
required to be available in the users manual: This device complies with Part 15 of 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.
LABEL OF THE END PRODUCT:
The final end product must be labeled in a visible area with the following " Contains TX FCC ID:
NKR-SWA12 ". If the size of the end product is larger than 8x10cm, then the following FCC part 15.19
statement has to also be available on the label: This device complies with Part 15 of 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.
IC Statement:
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B conforme á la norme NMB-003 du Canada.
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.
L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2)
l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en
compromettre le fonctionnement.
This device and its antenna(s) must not be co-located or operation in conjunction with any other
antenna or transmitter.
IMPORTANT NOTE:
IC Radiation Exposure Statement:
This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm between
the radiator & your body.
IMPORTANT NOTE:
This module is intended for OEM integrator. The OEM integrator is still responsible for the IC
compliance requirement of the end product, which integrates this module.
20cm 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 IC RSS-102 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.
USERS MANUAL OF THE END PRODUCT:
The end user has to be informed that the IC radio-frequency exposure guidelines for an uncontrolled
environment can be satisfied. The end user has to also be informed that any changes or modifications
not expressly approved by the manufacturer could void the user's authority to operate this equipment.
IC statement is required to be available in the users manual: This Class B digital apparatus complies
with Canadian ICES-003. 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.
LABEL OF THE END PRODUCT:
The final end product must be labeled in a visible area with the following " Contains TX IC :
4441A-SWA12 ".

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