Libre Wireless Technologies LS9ADAC11DBT WiFi Media Streaming Module User Manual Copyright 2014 by Libre Wireless Technologies
Libre Wireless Technologies Inc. WiFi Media Streaming Module Copyright 2014 by Libre Wireless Technologies
Contents
- 1. 15_LS9AD-AC11DBT UserMan
- 2. User manual
User manual
Libre Wireless Technologies © 2017
Libre Confidential
LibreSync & GC4A & Google Voice Assistant
High Performance Network Media Module
1x1 Dual Band 802.11 a/b/g/n/ac
With Integrated Bluetooth 4.1 + Low Energy (BLE)
LS9AD Data Sheet
Module: LS9AD-AC11DBT and LS9AD-AC11DBT-GV
Rev: 1.6
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1. Introduction
Libre Wireless, LS9AD-AC11DBT is a high performance media / audio streaming module. LS9AD-
AC11DBT comes with Dual core Coretex-A7 CPU and Dual Neon/VFPU subsystems running at 1.3GHz,
256MB of DDR3 DRAM memory and 256MB of NAND Flash, an 802.11a/b/g/n/ac, Bluetooth v4.1 Low
Energy (BLE), Multi- standard Video encoding, 2D/3D Graphics Engine and a USB OTG. This Module
also supports antenna diversity.
Libre Wireless, LS9AD-AC11DBT-GV is a high-performance media / voice module. LS9AD-AC11DBT-
GV comes with Dual core Coretex-A7 CPU and Dual Neon/VFPU subsystems running at 1.3GHz, 512MB
of DDR3 DRAM memory and 512MB of NAND Flash, an 802.11a/b/g/n/ac, Bluetooth v4.1 Low Energy
(BLE), Multi- standard Video encoding, 2D/3D Graphics Engine and a USB OTG. This Module also
supports antenna diversity.
2. Module Feature Summary
Key Features
• Dual core Cortex-A7 CPU and Dual Core Neon/VFPU running ate 1.3GHz
• GC4A, Airplay, Home-kit, Spotify-Connect, DLNA DMP/DMR/DMS, WinX, Miracast, etc
• Features: Hi-Rez Audio (192KHz/24bits), Stereo Decode, HD Graphics and HD Video On
Screen Display
• LPCM, MP3, AAC/AAC+,AC3, OGG Vorbis, HE-AAC, WMA decode capability
• Lossless audio decode, like FLAC, APE and DSD
• Support for JPEG/GIF
• Supports WMV9, AVS, VP6,
• Libre’s advanced multi-zone audio streaming technology (DDMS)
• Libre Crypto IC for code protection and secure transaction feature options
• Data Transport De-MUX
• 1DES/3DES/AES/CSS/CPRM/DTCP copy protection
• Feature Rich 2D/3D Hardware Graphics Engine,
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• I2S interface
o LS9AD module can be configured only as I2S-Master mode
o DSD over PCM
• SPDIF Output (Muxed with I2S port TXD Line - optional)
In LS9AD, SPDIF and I2S are mutually exclusive. I2S is available only
when SPDIF output is disabled, and vise versa.
• HDMI1.4 transmitter MAC and PHY with HDCP 1.4
• 1x USB 2.0 OTG (For Debug Shell, Ethernet, Firmware update, USB Media Playback)
• 1x UART (For HOST-MCU communication)
• 2x I2C, 1x SPI, GPIOs
• Wi-Fi 1x1 802.11a/b/g/n/ac with 2x Dual Band Antenna Diversity support
• Bluetooth 4.1 and Low Energy
• WiFi/BT concurrent coexistence
• Standard configuration includes 256MB /512MB NAND FLASH and 256MB /512MB DDR3
WLAN Features
• IEEE 802.11 a/b/g/n and 802.11ac compliant
• Dual band 1T1R supporting STB and Receive Beamforming
Bluetooth Features
• Bluetooth specification v2.1+EDR
• Bluetooth specification 3.0+HS (802.11 AMP) compliance
• Bluetooth v4.1 Low Energy (LE)
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• Best-in-class BT/Wi-Fi coexistence performance
• BT Profiles: A2DP 1.2, AVRCP 1.3, SPP, HFP, HSP, HOGP
LS9AD-AC11DBT-GV Features
• Digital MIC can be directly connected to I2S Rx line
• Consists 512MB of NAND Flash and DDR3
• Module dimensions and connector details are same as LS9AD-AC11DBT module variant.
3. LibreSync Features
LibreSync modules have extensive software features for connected media streaming and control
applications. These include system level control and interface features as well as networking
features.
Please refer to the full “LibreSync Feature List” for details of supported features.
• Platform features can vary based on module
configuration/derivatives and commercial engagement details.
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4. Block Diagram
Figure 4-1: LS9AD-AC11DBT MODULE Block Diagram
5. Specifications
5.1. General Specification
Parameter
Description / Values
Model
LS9AD-AC11DBT / LS9AD-AC11DBT-GV MODULE
Product Name
Network Media Module
Standard
• Wi-Fi – IEEE802.11a, IEEE802.11b, IEEE802.11g,
IEEE802.11n, IEEE802.11ac standards
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Parameter
Description / Values
• BT – v2.1+EDR, v4.1 BT Low Energy (BLE)
Data Transfer Rate
1,2,5.5,6,11,12,18,22,24,30,36,48,54,60,90,120,150, 300,
and maximum of physical layer rate of 390 Mbps
Frequency Band
2.4 / 5.0 GHz
Input Voltage
3.3 V ± 5 %
Ripple
Requirement
20-30 mVpk-pk
Operating
Temperature
-5˚C to + 70˚C
Dimensions
56mm x 41 mm x 6.8 mm (L x W x H) ± 0.2mm
5.2. Wi-Fi Specification
Parameter
Description / Values
Standard
IEEE802.11a, IEEE802.11b, IEEE802.11g, IEEE802.11n, and
IEEE802.11ac (draft compliant)
Data Rate
• 802.11b : 11, 5.5, 2, 1 Mbps
• 802.11a/g : 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 HT40MHz
MCS 0 to 9 for HT80MHz
Modulation
• 802.11b : CCK, DQPSK, DBPSK
• 802.11g : 64QAM, 16QAM, QPSK, BPSK
• 802.11n : 64QAM, 16QAM, QPSK, BPSK
• 802.11ac : 256 QAM, 64QAM, 16QAM, QPSK,
BPSK
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Parameter Description / Values
Network
Architecture
• Ad-hoc mode (Peer-to-Peer)
• Infrastructure Mode
Operation Channel 2.4GHz
• 11: (Ch. 1-11) – United States
• 13: (Ch. 1-13) – Europe
• 5.0 GHz
• 21: (Ch. 36, 40, 44, 48, 52……161, and 165) – USA
• 19: (Ch. 36, 40, 44, ………136, and 140) - Europe
Frequency Range 2.4GHz: 2.412 ~ 2.483 GHz
5.0 GHz: 5.180GHz ~ 5.825GHz
Receiver
Sensitivity
• 2.4 GHz
o 802.11b : < -92 dBm (1Mbps)
o 802.11g : < - 70 dBm (54Mbps)
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Parameter
Description / Values
o 802.11n : < -69 dBm (MCS 7)
• 5.0 GHz
o 802.11a : < -65 dBm (54Mbps)
o 802.11n : < -64dBm (MCS 7)
• 802.11ac :
o -76 dBm (MCS 0)
o -60 dBm (MCS7)
o -54 dBm (MCS 9)
Security
WEP 64&128 bit, WPA, WPA-PSK, WPA2, WPA2-PSK,
WPS, IEEE 802.1x, IEEE 802.11i
5.3. Bluetooth Specification
Parameter
Description / Values
Standard
V2.1+EDR, V3.0+HS, V4.1 BT Low Energy (BLE)
Audio CODEC
Support
SBC
Profile Support
A2DP 1.2, AVRCP 1.3, SPP, HFP, HSP, HOGP
Sampling Rates
• 44.1 KHz, 48 KHz
• Joint Stereo 32 KHz
Coexistence
Support
Intelligent AFH (Advanced Frequency Hopping) – Channel
Assessment
WLAN/Bluetooth Coexistence (BCA) Protocol Support
Data Rate
• GFSK : 1 Mbps
• π/4 DQPSK : 2 Mbps
• 8DPSK : 3 Mbps
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Modulation
GFSK, π/4 DQPSK, 8DPSK
Operation Channel
0 to 78 for BDR / EDR
0 to 39 for BLE
Frequency Range
2.4 GHz (2402 -2480 MHz)
Security
AES Encryption
Transmit Output
Power (+/- 1dBm
tolerance)
• BDR : 6 dBm
• EDR : 4 dBm
• LE : 6 dBm
Receiver
Sensitivity
• BDR: < -86 dBm
• EDR : < - 84 dBm
• LE : <-86 dBm
5.4. Antenna Specification
Antenna Module
LSANT-1C-180
Antenna Gain
≤ 3.5dBi
Manufacturer of
Antenna
Golden Smart International Co., Ltd
Antenna Images
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5.5. LS9AD-AC11DBT Module Ordering Information
Product
Number
Wi-Fi Tx/Rx
Wi-Fi Bands
Bluetooth
Memory
Module
Height*
(±0.2mm)
LS9AD-
AC11DBT
802.11 b/g/n/ac
1x1
2.4 / 5.0 GHz
4.1 BT + BLE
256 MB NAND
256 MB DDR3
56 mm x
41mm x 6.8
mm (L x W x
H) ± 0.2mm
LS9AD-
AC11DBT-GV
802.11 b/g/n/ac
1x1
2.4 / 5.0 GHz
4.1 BT + BLE
512 MB NAND
512 MB DDR3
56 mm x
41mm x 6.8
mm (L x W x
H) ± 0.2mm
• The LS9AD-AC11DBT / LS9AD-AC11DBT module height does not
include the measurement of bottom-side media-connector.
6. Mechanical, Connectors and Interfaces
6.1. Physical Module
Physical module dimension is 56 mm x 41mm x 6.8 mm (L x W x H) ± 0.2mm.
Height of the module varies depending on the LS9AD Module variant used; for information on height
of the module see Section 5.2.2. LS9AD-AC11DBT Module Ordering Information.
Figure 6-1 and Figure 6-2 represent module’s top and bottom.
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Figure 6.1-1: LS9AD-AC11DBT Module Top
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Figure 6.1-2: LS9AD-AC11DBT Module Bottom
Figure 6.1-3: LS9AD-AC11DBT MODULE Top View Mechanical Dimension (1)
Figure 6.1-4: LS9AD-AC11DBT MODULE Top View Mechanical Dimension (2)
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Figure 6.1-5: LS9AD-AC11DBT MODULE Top View Mechanical Dimension (3)
• The module dimension is measured in millimetres (mm).
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6.2. Media Connector Specification
Figure 6.2-1: Media Connector
6.3. Pin Descriptions
6.3.1. Connector-1
LS9AD-AC11DBT-GV: Media Connector Pin out: J1
FUNCTIONALITY
SIGNAL NAME
SIGNAL NAME
FUNCTIONALITY
3V3 POWER SUPPLY
I/P
3V3
1
2
3V3
3V3 POWER SUPPLY I/P
3V3
3
4
NC
NO CONNECT
GND
5
6
GND
GROUND
I2C_SCL
I2C0_SCL/GPI
O6
7
8
MCLK
AUDIO O/P MASTER
CLOCK
I2C_SDA
I2C0_SDA/GPI
O7
9
10
BCLK
AUDIO O/P BIT CLOCK
POWER ON RESET
INPUT
RESET#
11
12
LRCLK
AUDIO O/P LR CLOCK
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NO CONNECT
NC
13
14
I2S_TXD/I2S_R
XD2
I2S_TXD/SPDIF_OUT/I2S_
RXD2
NO CONNECT
NC
15
16
USB VBUS PORT1
USB_VBUS_P1
17
18
GROUND
GND
19
20
I2S_RXD1
I2S Input channel 1 & 2
USB DP
USB_DP_P1
21
22
USB DM
USB_DM_P1
23
24
GROUND
GND
25
26
GND
GROUND
NO CONNECT
NC
27
28
NC
NO CONNECT
NO CONNECT
NC
29
30
NC
NO CONNECT
NO CONNECT
NC
31
32
NC
NO CONNECT
NO CONNECT
NC
33
34
I2S_RXD1
I2S Input channel 1 & 2
GROUND
GND
35
36
NO CONNECT
NC
37
38
GND
GROUND
NO CONNECT
NC
39
40
NO CONNECT
NC
41
42
GND
GROUND
Host MCU
communication/Debug
ging
UATXD/GPIO4
43
44
Host MCU
communication/Debug
ging
UARXD/GPIO3
45
46
GND
GROUND
GROUND
GND
47
48
NC
NO CONNECT
NO CONNECT
UART1_TXD/N
C
49
50
NC
NO CONNECT
NO CONNECT
UART1_RXD/N
C
51
52
NC
NO CONNECT
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GPIO8/SPI1_SCLK
GPIO8/SPI1_S
CLK
53
54
NC
NO CONNECT
GPIO9/SPI1_SDO
GPIO9/SPI1_S
DO
55
56
NC
NO CONNECT
GROUND
GND
57
58
NC
NO CONNECT
GPIO10/SPI1_SDI
GPIO10/SPI1_
SDI
59
60
NC
NO CONNECT
NO CONNECT
NC
61
62
NC
NO CONNECT
NO CONNECT
NC
63
64
GND
GROUND
GPIO5/SPI1_SS0n
GPIO5/SPI1_SS
0n
65
66
NC
NO CONNECT
USB_ID
USB_ID
67
68
NC
NO CONNECT
GROUND
GND
69
70
NC
NO CONNECT
• Revision 2.0 module of LS9AD, HOST MCU communication is on pin 43(Tx)
and 45(Rx); pin 49(Tx) and 51(Rx).
For LS9AD-AC11DBT-GV Modules
• Pin J1.8 I2S_MCLK will be configured as PDM_CLK when Google voice
assistant image is updated.
o There will be no MCLK output and this pin must be connected to
PDM MEMS MIC.
• Pin J1.20 I2S_RXD will be configured ass PDM_DAT when Google voice
assistant image is updated.
o There will be no AUX input and this pin must be connected to PDM
MEMS MIC.
6.3.2. Connector-2
LS9AD-AC11DBT-GV: Media Connector Pin out: J2
FUNCTIONALITY
SIGNAL NAME
SIGNAL NAME
FUNCTIONALITY
GROUND
GND
1
2
GND
GROUND
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HDMI TX DATA2 +
HDMI_TX_2P
3
4
NC
NO CONNECT
HDMI TX DATA2 -
HDMI_TX_2M
5
6
NC
NO CONNECT
GROUND
GND
7
8
GND
GROUND
HDMI TX DATA1 +
HDMI_TX_1P
9
10
NC
NO CONNECT
HDMI TX DATA1 -
HDMI_TX_1M
11
12
NC
NO CONNECT
GROUND
GND
13
14
GND
GROUND
HDMI TX DATA0 +
HDMI_TX_0P
15
16
NC
NO CONNECT
HDMI TX DATA0 -
HDMI_TX_0M
17
18
NC
NO CONNECT
GROUND
GND
19
20
GND
GROUND
HDMI TX CLOCK +
HDMI_TX_CLKP
21
22
NC
NO CONNECT
HDMI TX CLOCK -
HDMI_TX_CLKM
23
24
NC
NO CONNECT
GROUND
GND
25
26
GND
GROUND
HDMI TX CEC/GPIO14 –
Antenna Diversity
CEC/GPIO14
27
28
NC
NO CONNECT
HDMI I2C
CLOCK/GPIO12 (10K
external pull up resistor
required)
HDMISCK/GPIO12
29
30
NC
NO CONNECT
HDMI I2C DATA/GPIO13
(10K external pull up
resistor required)
HDMISD/GPIO13
31
32
NC
NO CONNECT
HDMI HOT
PLUG/GPIO15 – TSF
(10K external pull up
resistor required)
HTPLG/GPIO15
33
34
NC
NO CONNECT
GROUND
GND
35
36
NC
NO CONNECT
NO CONNECT
NC
37
38
GND
GROUND
NO CONNECT
NC
39
40
NC
NO CONNECT
GROUND
GND
41
42
GND
GROUND
NO CONNECT
NC
43
44
NC
NO CONNECT
NO CONNECT
NC
45
46
NC
NO CONNECT
GROUND
GND
47
48
NC
NO CONNECT
NO CONNECT
NC
49
50
NC
NO CONNECT
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NO CONNECT
NC
51
52
GND
GROUND
GROUND
GND
53
54
NC
NO CONNECT
NO CONNECT
NC
55
56
NC
NO CONNECT
NO CONNECT
NC
57
58
GND
GROUND
GROUND
GND
59
60
NC
NO CONNECT
NO CONNECT
NC
61
62
NC
NO CONNECT
NO CONNECT
NC
63
64
GND
GROUND
NO CONNECT
NC
65
66
NC
NO CONNECT
NO CONNECT
NC
67
68
NC
NO CONNECT
GROUND
GND
69
70
GND
GROUND
6.4. GPIO Details
Interface
Signal Name
GPIO No
Type
Availability/ Usage
SPI
SPI1_SS0
GPO5
Output
YES
SPI1_SCLK
GPO8
Output
SPI1_SDO
GPIO9
Input/output
SPI1_SDI
GPIO10
Input/output
HDMI
control
signals
TW1_SCL
GPIO12
Input/output (requires
external pull up)
YES
TW1_SDA
GPIO13
Input/output (requires
external pull up)
HDMI_HPD
GPIO15
Input/output (requires
external pull up)
HDMI_CEC
GPIO14
Input/output (requires
external pull up)
No
Used to control the antenna
diversity S/W
UART
UART_RXD
GPIO3
Input/output
Yes
UART_TXD
GPIO4
Output
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HOST UART/Debug / GPIO
Interface
I2C
interface
I2C_SCL
GPIO6
Input/output
Yes
I2C interface for Crypto, ACP
CODEC, and HOST-MCU
Communication (optional)
I2C_SDA
GPIO7
Input/output
7. Power Consumption
• The default power consumption when not connected to Access-Point is 246mA at average
operational condition and 252mA at peak operational condition.
• The default power consumption when connected to Access-Point is 256mA at average
operational condition and 264mA at peak operational condition.
• Power consumption during Google Cast for Audio (GCast) play back is 272mA at average
operational condition and 358mA at peak operational condition.
8. Environmental
8.1. Storage Conditions
The calculated shelf life in a sealed bag is 12 months if stored between 0°C and 70˚C at less than 90%
relative humidity (RH).
After the bag is opened, devices that are subjected to solder reflow or other high temperature
processes must be handled in the following manner:
• Mounted within 168 hours in factory conditions, i.e. <30°C at 60% RH.
• Storage humidity needs to maintained at <10%RH.
• Baking is necessary if the customer exposes the component to air for over 168 hrs.
- Baking conditions: 125℃ for 8hrs.
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9. Reference Schematics
9.1. EVK Block Diagram
Figure 8-1: LS9AD EVK Block Diagram
• For detailed schematics of LS9AD refer to the latest LS9AD-
EVK Schematic, file in the portal
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9.2. MFI 2.0C Authentication Circuit
Figure 8-2: LS9AD EVK Block Diagram
10. Disclaimer
THE MATERIALS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A Pas RTICULAR PURPOSE OR NON-INFRINGEMENT.
We use reasonable efforts to include accurate and up-to-date information in this document. It does not
however, make any representations as its accuracy or completeness of information. Use of this
document is at your own risk. Libre Wireless Technologies, its suppliers, and other parties involved in
creating and delivering this document’s contents shall not be liable for any special, indirect, incidental,
or consequential damages, including without limitation, lost revenues or lost profits.
11. Appendix
11.1. FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
i. This device may not cause harmful interference, and
ii. This device must accept any interference received, including interference that
may cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for compliance could
void the user's authority to operate the equipment. The modular can be installed or integrated in
mobile or fix devices only. This modular cannot be installed in any portable device.
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FCC Radiation Exposure Statement
This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment. This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
This modular must be installed and operated with a minimum distance of 20 cm between the radiator
and user body. 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: Or Contains 2ADBM-LS9ADAC11DBT"
1 This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
i. This device may not cause harmful interference.
ii. This device must accept any interference received, including interference that
may cause undesired operation.
2 Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
The devices must be installed and used in strict accordance with the manufacturer's instructions as
described in the user documentation that comes with the product.
Any company of the host device 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 ,15.407 and 15.209 requirement, Only if the test result comply with FCC part 15C :
15.247,15.407 and 15.209 requirement ，then the host can be sold legally.
2ADBM-LS9ADAC11DBT
When the module is installed inside another device, the user manual of the host must contain below
warning statements;