Link Play A98M Series User manual

Linkplay Wireless Smart Audio
Module (A98M Series)
User Manual
Revision 0.3
December 14, 2020

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HISTORY
Version Date Description
0.1 01/15/2020 Initial version release
0.2 03/24/2020 Update description of DVFS
0.3 12/14/2020 Add FCC related information

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INDEX
1. Overview ............................................................................................................................................................. 4
1.1. Parameter ................................................................................................................................................. 5
2. Hardware Description ........................................................................................................................................ 10
2.1. Description of Hardware Interface ........................................................................................................ 10
2.2. Mechanical Dimension .......................................................................................................................... 14
2.3. External Antenna ................................................................................................................................... 17
2.4. Typical Application ................................................................................................................................ 18
2.6 USB OTG Port ....................................................................................................................................... 18
3. Software Introduction ........................................................................................................................................ 18
3.1. Feature List ............................................................................................................................................ 18
3.2. APP Support .......................................................................................................................................... 19
3.3. Certifications.......................................................................................................................................... 19
4. Module Environmental and Package ................................................................................................................. 20
4.1. Environmental Ratings .......................................................................................................................... 20
4.2. Electrostatic Discharge Specifications ................................................................................................... 20
5. Ordering Information ......................................................................................................................................... 20
6. FCC Information ................................................................................................................................................ 21

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1. Overview
Linkplay Wireless Smart Audio module–A98M, is our 3rd. generation smart audio modules developed to be
used in the connected speaker, sound bar and other connected audio devices. It supports both ‘voice built-in’ and
‘work with voice’ applications. It integrates the low power Broadcom BCM43456 Wi-Fi/BT chip and Amlogic
A113X application processor that is designed for the connected audio applications. It integrates a powerful CPU
subsystem, advanced multi-format audio processing unit, a secured running environment and all major peripherals
to form the low power audio SoC.
The main system CPU is a quad-core ARM Cortex-A53 CPU with L1 instruction/data cache for each core and
a large unified L2 cache to improve system performance. Each Cortex-A53 CPU can run up to 1.2 GHz (DVFS +
hot plug, run up to 1.2 GHz in A98M module) and has a wide bus connecting to the memory sub-system. When the
system is suspended, the main CPU can be powered off and the cortex-M3 in the always-on power domain can
resume the system from multiple interrupt sources to achieve very low power consumption.
The audio processing engine (APE) is based on ARM® NEONTM general-purpose SIMD architecture which
works seamlessly with the main CPU to accelerate the multimedia processing algorithm and enhance the user
experience. It is able to decode all major high-resolution audio formats including MP3, AAC, WMA, RM, FLAC,
Ogg, etc. with the flexibility to support future audio encoding/decoding standards and processing.
The module supports all standard audio input/output interfaces including multiple TDM, PCM, I2S and SPDIF
digital audio input/output interfaces, and 8 channel far-field PDM digital microphone (DMIC) inputs. Audio input
has power detector to wake up from low activity states. It also has the dedicated hardware assisted synchronization
blocks for the multiple room audio applications. Besides, audio input data can be restricted to trusted memory space
to protect always-on audio privacy.
The module supports IEEE 802.11 a/b/g/n/ac 1x1 dual band 2.4 GHz and 5GHz Wi-Fi and BT5.0 with EDR
and BLE. It also provides USB, I2S, I2C, PDM, SPI, UART etc. interfaces to control various types of peripheral
devices.
The Linkplay embedded firmware is secure, pre-certified for many voice assistants such as Amazon Alexa voice
services (AVS), Tencent Xiaowei, Naver Clova, Baidu DuerOS, Yandex Alice etc. among others. It also supports
Apple Airplay 2, Spotify connect and numerous other music contents such as Spotify, iHeartRadio, Amazon Music,
Tidal, TuneIn, Deezer and many others. It’s also compatible with digital living network alliance (DLNA) streaming
standards. It supports Hi-Fi audio up to 192KHz, 24-bit with the most popular audio formats. It supports multi-room
and multi-channel audio streaming with perfect synchronization.
In addition, the embedded software supports the audio front end processing such as acoustic echo cancellation
(AEC) and denoising for voice UI and the sophisticated EQ processing for the high quality audio playback.
With this module, you can play the music on your speaker wirelessly from iPhone, iPad, iPod touch, Android
devices or PC. More important, it enables the traditional speaker system to become the Internet enabled device
through the wired or wireless connection provided by the module. Thus, you could freely play any Internet audio
contents such as music, podcast, radio or either the accompany audio in the movie directly from the Internet.
Features
 Amlogic A113X application processor
 128MB DRAM (with 256MB, 512MB options)

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 128MB NAND FLASH (with 256MB, 512MB options)
 AMPAK AP6256
 Support IEEE 802.11 a/b/g/n/ac Wi-Fi dual band 1x1
 Support BT5.0 with EDR and BLE
Application
 Connected speaker, sound bar
 Connected audio devices
1.1. Parameter
Type Items Performance
Wi-Fi Certification TBA
WLAN Standard IEEE 802.11 a/b/g/n/ac Wi-Fi compliant
Wi-Fi (2.4G)
Frequency Range 2.400 GHz ~ 2.4835 GHz (2.4 GHz ISM Band)
Number of Channels Ch1 ~ Ch13
Modulation 802.11b : DQPSK, DBPSK, CCK
802.11g/n : OFDM /64-QAM,16-QAM, QPSK, BPSK
Output Power
(Tolerance ± 1.5 dB
The transmit EVM quality
& spectrum mask are
compliant with IEEE
802.11 standard)
802.11b 1/2/5.5/11Mbps : 17 dB
802.11g 6/9/12/18/24/36Mbps : 16 dB
802.11g 48/54Mbps : 15 dB
802.11n 20MHz MCS0-3 : 17 dB
802.11n 20MHz MCS4 : 16 dB
802.11n 20MHz MCS5 : 15 dB
802.11n 20MHz MCS6/MCS7 : 14 dB
Receive Sensitivity
(Tolerance ± 2 dB
CCK modulation PER ≦
8%、OFDM modulation
PER ≦ 10%) @8% PER
802.11b 1Mbps -96 dBm
802.11b 2Mbps -90 dBm
802.11b 5.5Mbps -88 dBm
802.11b 11Mbps -87 dBm
802.11g 6Mbps -91 dBm
802.11g 9Mbps -88 dBm
802.11g 12Mbps -87 dBm
802.11g 18Mbps -85 dBm
802.11g 24Mbps -83 dBm
802.11g 36Mbps -80 dBm
802.11g 48Mbps -76 dBm
802.11g 54Mbps -73 dBm
802.11n 20MHz MCS0 -90 dBm
802.11n 20MHz MCS1 -85 dBm
802.11n 20MHz MCS2 -84 dBm
802.11n 20MHz MCS3 -80 dBm

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802.11n 20MHz MCS4 -77 dBm
802.11n 20MHz MCS5 -75 dBm
802.11n 20MHz MCS6 -72 dBm
802.11n 20MHz MCS7 -71 dBm
Maximum Input Level
802.11b : -10 dBm
802.11g/n : -20 dBm
Antenna Interface External: I-PEX I with 0 ~ 2 dBi peak gain
WLAN Standard IEEE 802.11a/n/ac 1x1 & Wi-Fi compliant
Frequency Range 5.15 ~ 5.35GHz、5.47 ~ 5.725GHz、5.725 ~ 5.85GHz
(5GHz UNII Band)
Number of Channels
5.18~5.35GHz：Ch36 ~ Ch64
5.5~5.7GHz：Ch100 ~ Ch140
5.745~5.825GHz：Ch149 ~ Ch165
Modulation
802.11a : OFDM /64-QAM、16-QAM、QPSK、BPS
802.11n : OFDM /64-QAM、16-QAM、QPSK、BPSK
802.11ac : OFDM /256-QAM、OFDM /64-QAM、16-
QAM、QPSK、BPSK
Output Power
(Tolerance ± 2 dB
The transmit EVM quality
& spectrum mask are
compliant with IEEE
802.11 standard)
802.11a 5180~5350GHz 6-9Mbps、12-18Mbps、
24Mbps : 17 dBm
802.11a 5180~5350GHz 36/48Mbps : 16 dB
802.11a 5180~5350GHz 54Mbps : 15 dB
802.11a 5500~5700GHz 6-9Mbps、12-18Mbps、
24Mbps : 17 dB
802.11a 5500~5700GHz 36/48Mbps : 16 dB
802.11a 5500~5700GHz 54Mbps : 15 dB
802.11a 5745~5825GHz 6-9Mbps、12-18Mbps、
24Mbps : 17 dB
802.11a 5745~5825GHz 36/48Mbps : 16 dB
802.11a 5745~5825GHz 54Mbps : 15 dB
802.11n 20MHz 5180~5350GHz MCS0-3 : 17 dB
802.11n 20MHz 5180~5350GHz MCS4/5 : 16 dB
802.11n 20MHz 5180~5350GHz MCS6 : 15 dB
802.11n 20MHz 5180~5350GHz MCS7 : 14 dB
802.11n 20MHz 5500~5700GHz MCS0-3 : 17 dB
802.11n 20MHz 5500~5700GHz MCS4/5 : 16 dB
802.11n 20MHz 5500~5700GHz MCS6 : 15 dB
802.11n 20MHz 5500~5700GHz MCS7 : 14 dB
802.11n 20MHz 5745~5825GHz MCS0-3 : 17 dB
802.11n 20MHz 5745~5825GHz MCS4/5 : 16 dB
802.11n 20MHz 5745~5825GHz MCS6 : 15 dB
802.11n 20MHz 5745~5825GHz MCS7 : 14 dB

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802.11n 40MHz 5180~5350GHz MCS0-3 : 17 dB
802.11n 40MHz 5180~5350GHz MCS4/5 : 16 dB
802.11n 40MHz 5180~5350GHz MCS6 : 15 dB
802.11n 40MHz 5180~5350GHz MCS7 : 14 dB
802.11n 40MHz 5500~5700GHz MCS0-3 : 17 dB
802.11n 40MHz 5500~5700GHz MCS4/5 : 16 dB
802.11n 40MHz 5500~5700GHz MCS6 : 15 dB
802.11n 40MHz 5500~5700GHz MCS7 : 14 dB
802.11n 40MHz 5745~5825GHz MCS0-3 : 17 dB
802.11n 40MHz 5745~5825GHz MCS4/5 : 16 dB
802.11n 40MHz 5745~5825GHz MCS6 : 15 dB
802.11n 40MHz 5745~5825GHz MCS7 : 14 dB
802.11ac 20MHz 5180~5350GHz MCS0-3 : 17 dB
802.11ac 20MHz 5180~5350GHz MCS4/5 : 16 dB
802.11ac 20MHz 5180~5350GHz MCS6 : 15 dB
802.11ac 20MHz 5180~5350GHz MCS7 : 14 dB
802.11ac 20MHz 5180~5350GHz MCS8 : 12 dB
802.11ac 20MHz 5500~5700GHz MCS0-3 : 17 dB
802.11ac 20MHz 5500~5700GHz MCS4/5 : 16 dB
802.11ac 20MHz 5500~5700GHz MCS6 : 15 dB
802.11ac 20MHz 5500~5700GHz MCS7 : 14 dB
802.11ac 20MHz 5500~5700GHz MCS8 : 12 dB
802.11ac 20MHz 5745~5825GHz MCS0-3 : 17 dB
802.11ac 20MHz 5745~5825GHz MCS4/5 : 16 dB
802.11ac 20MHz 5745~5825GHz MCS6 : 15 dB
802.11ac 20MHz 5745~5825GHz MCS7 : 14 dB
802.11ac 20MHz 5745~5825GHz MCS8 : 12 dB
802.11ac 40MHz 5180~5350GHz MCS0-3 : 17 dB
802.11ac 40MHz 5180~5350GHz MCS4/5 : 16 dB
802.11ac 40MHz 5180~5350GHz MCS6 : 15 dB
802.11ac 40MHz 5180~5350GHz MCS7 : 14 dB
802.11ac 40MHz 5180~5350GHz MCS8 : 12 dB
802.11ac 40MHz 5180~5350GHz MCS9 : 10.5 dB
802.11ac 40MHz 5500~5700GHz MCS0-3 : 17 dB
802.11ac 40MHz 5500~5700GHz MCS4/5 : 16 dB
802.11ac 40MHz 5500~5700GHz MCS6 : 15 dB
802.11ac 40MHz 5500~5700GHz MCS7 : 14 dB
802.11ac 40MHz 5500~5700GHz MCS8 : 12 dB
802.11ac 40MHz 5500~5700GHz MCS9 : 10.5 dB
802.11ac 40MHz 5745~5825GHz MCS0-3 : 17 dB
802.11ac 40MHz 5745~5825GHz MCS4/5 : 16 dB
802.11ac 40MHz 5745~5825GHz MCS6 : 15 dB

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802.11ac 40MHz 5745~5825GHz MCS7 : 14 dB
802.11ac 40MHz 5745~5825GHz MCS8 : 12 dB
802.11ac 40MHz 5745~5825GHz MCS9 : 10.5 dB
802.11ac 80MHz 5180~5350GHz MCS0-3 : 17 dB
802.11ac 80MHz 5180~5350GHz MCS4/5 : 16 dB
802.11ac 80MHz 5180~5350GHz MCS6 : 15 dB
802.11ac 80MHz 5180~5350GHz MCS7 : 14 dB
802.11ac 80MHz 5180~5350GHz MCS8 : 12 dB
802.11ac 80MHz 5180~5350GHz MCS9 : 10.5 dB
802.11ac 80MHz 5500~5700GHz MCS0-3 : 17 dB
802.11ac 80MHz 5500~5700GHz MCS4/5 : 16 dB
802.11ac 80MHz 5500~5700GHz MCS6 : 15 dB
802.11ac 80MHz 5500~5700GHz MCS7 : 14 dB
802.11ac 80MHz 5500~5700GHz MCS8 : 12 dB
802.11ac 80MHz 5500~5700GHz MCS9 : 10.5 dB
802.11ac 80MHz 5745~5825GHz MCS0-3 : 17 dB
802.11ac 80MHz 5745~5825GHz MCS4/5 : 16 dB
802.11ac 80MHz 5745~5825GHz MCS6 : 15 dB
802.11ac 80MHz 5745~5825GHz MCS7 : 14 dB
802.11ac 80MHz 5745~5825GHz MCS8 : 12 dB
802.11ac 80MHz 5745~5825GHz MCS9 : 10.5 dB
Receive Sensitivity
(Tolerance ± 2 dB
OFDM modulation PER
≦ 10%)
802.11a 6Mbps -92 dBm
802.11a 9Mbps -89 dBm
802.11a 12Mbps -88 dBm
802.11a 18Mbps -86 dBm
802.11a 24Mbps -82 dBm
802.11a 36Mbps -79 dBm
802.11a 48Mbps -75 dBm
802.11a 54Mbps -74 dBm
802.11n 20MHz MCS0 -91 dBm
802.11n 20MHz MCS1 -88 dBm
802.11n 20MHz MCS2 -85 dBm
802.11n 20MHz MCS3 -82 dBm
802.11n 20MHz MCS4 -78 dBm
802.11n 20MHz MCS5 -74 dBm
802.11n 20MHz MCS6 -73 dBm
802.11n 20MHz MCS7 -72 dBm
802.11n 40MHz MCS0 -89 dBm
802.11n 40MHz MCS1 -85 dBm
802.11n 40MHz MCS2 -83 dBm
802.11n 40MHz MCS3 -79 dBm

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802.11n 40MHz MCS4 -76 dBm
802.11n 40MHz MCS5 -71 dBm
802.11n 40MHz MCS6 -70 dBm
802.11n 40MHz MCS7 -68 dBm
802.11ac 20MHz MCS0 -90 dBm
802.11ac 20MHz MCS1 -87 dBm
802.11ac 20MHz MCS2 -84 dBm
802.11ac 20MHz MCS3 -81 dBm
802.11ac 20MHz MCS4 -77 dBm
802.11ac 20MHz MCS5 -73 dBm
802.11ac 20MHz MCS6 -71 dBm
802.11ac 20MHz MCS7 -70 dBm
802.11ac 20MHz MCS8 -67 dBm
802.11ac 40MHz MCS0 -88 dBm
802.11ac 40MHz MCS1 -83 dBm
802.11ac 40MHz MCS2 -81 dBm
802.11ac 40MHz MCS3 -78 dBm
802.11ac 40MHz MCS4 -75 dBm
802.11ac 40MHz MCS5 -70 dBm
802.11ac 40MHz MCS6 -68 dBm
802.11ac 40MHz MCS7 -66 dBm
802.11ac 40MHz MCS8 -65 dBm
802.11ac 40MHz MCS9 -63 dBm
802.11ac 80MHz MCS0 -85 dBm
802.11ac 80MHz MCS1 -82 dBm
802.11ac 80MHz MCS2 -78 dBm
802.11ac 80MHz MCS3 -74 dBm
802.11ac 80MHz MCS4 -71 dBm
802.11ac 80MHz MCS5 -69 dBm
802.11ac 80MHz MCS6 -65 dBm
802.11ac 80MHz MCS7 -63 dBm
802.11ac 80MHz MCS8 -61 dBm
802.11ac 80MHz MCS9 -60 dBm
Maximum Input Level 802.11a/n : -20 dBm
802.11ac : -30 dBm
Antenna Reference External: I-PEX I with 0~2 dBi peak gain
Bluetooth
Certification BQB
Bluetooth Standard GFSK、DQPSK、8DPSK、LE(1Mbps)、2LE(2Mbps)
Antenna Interface External: I-PEX I shared with Wi-Fi 0~2 dBi peak gain
Frequency Band 2402 MHz ~ 2480 MHz
Number of Channels 79 channels for classic、40 channels for BLE
Modulation FHSS, GFSK, DPSK, DQPSK

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BDR Output Power CL1: 6dBm、CL2: 2dBm
EDR Output Power CL1: 4dBm、CL2: 2dBm
LE Output Power CL1: 5dBm、CL2: 2dBm
Sensitivity @ BER=0.1%
for GFSK (1Mbps) -86 dBm, Typical
Sensitivity @ BER=0.01%
for π/4-DQPSK (2Mbps) -87 dBm, Typical
Sensitivity @ BER=0.01%
for 8DPSK (3Mbps) -83 dBm, Typical
Sensitivity @ BER=0.01%
for LE (1Mbps) -90 dBm, Typical
Sensitivity @ BER=0.01%
for LE (2Mbps) -90 dBm, Typical
Maximum Input Level
GFSK (1Mbps): -20dBm
π/4-DQPSK (2Mbps) : -20dBm
8DPSK (3Mbps) : -20dBm
Hardware
Working Voltage 3.5-5.5V
Working Current 200 ~ 240mA (STA mode)
Standby Current 5mA
Operating Ambient
Temperature 0℃ ~ 40℃
Storage Temperature -5℃ ~ 45℃
Wi-Fi Working Distance 2.4G 80 meters/5G 150meters
IO Extension USB, I2S, I2C, PWM, SPI, UART
Dimension NGFF golden finger 67PIN
Table1-1 A98M Module Parameters
Note: The Bluetooth output power is able to be configured by firmware (hcd file).
2. Hardware Description
2.1. Description of Hardware Interface
A98M provides the option to connect with customer board through its 67-pins NGFF golden finger. The detail is as
follows.

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Figure 2-1 A98M Interface Pins
Pin Description:
Pin No. Pin Name Type Description Power Domain
1, 3, 5,
16, 23,
25, 27,
28, 34,
46, 50,
53, 54,
58, 63,
64, 74,
75
GND Supply Digital ground GND
2，4，6 VDD_5V Power Power supply input > 800mA 3.5 - 5.5V
7 GPIOZ_7 I/O General purpose input output 3.3V
17 I2C1_SCL I/O I2C bus1 clock 3.3V
19 I2C1_SDA I/O I2C bus1 data 3.3V
21 GPIOZ_3 I/O General purpose input output 3.3V

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29 GPIOZ_6 I/O General purpose input output 3.3V
31 PWM_B O Pulse Width Modulation B 3.3V
33 PWM_D O Pulse Width Modulation C 3.3V
35 PWMAO_C O Pulse Width Modulation AO_C 3.3V
37 PWMAO_D O Pulse Width Modulation AO_D 3.3V
39 UART0_RXD I UART0 receive 3.3V
41 UART0_TXD O UART0 transmit 3.3V
43 GPIOAO_7 I/O General purpose input output 3.3V
45 GPIOAO_6 I/O General purpose input output 3.3V
47 PWMAO_A O Pulse Width Modulation AO_A 3.3V
49 I2C0_SDA I/O I2C0 bus data 3.3V
51 I2C0_SCL I/O I2C0 bus clock 3.3V
55 GPIOA_19 I/O General purpose input output 3.3V
57 ADC_CH0 I/IPU ADC input 1.8V
59 MCLK_C O Master clock C 3.3V
61 GPIOAO_13 I/O General purpose input output 3.3V
65 GPIOA_20 I/O General purpose input output 3.3V
67 USB_DM I/O USB data minus 3.3V
69 USB_DP I/O USB data plus 3.3V
71 USB_VBUS I USB voltage detection 5V
73 USB_ID I USB ID 1.8V
18 GPIOZ_5 I/O General purpose input output 3.3V
20 GPIOZ_1 I/O General purpose input output 3.3V
22 GPIOZ_0 I/O General purpose input output 3.3V
24 PWM_C I/O Pulse Width Modulation C 3.3V
26 GPIOZ_2 I/O General purpose input output 3.3V
30 UART1_RXD I UART1 receive 3.3V
32 UART1_TXD O UART1 transmit 3.3V
36 PDM_DIN3 I PDM input data 3 signal 3.3V
38 PDM_DIN1 I PDM input data 1 signal 3.3V
40 PDM_DIN2 I PDM input data 2 signal 3.3V
42 PDM_DCLK O PDM output clock 3.3V
44 PDM_DIN0 I PDM input data 0 signal 3.3V
48 TDMB_DIO1 I/O TDM B input and output data1 3.3V
52 TDMB_SCLK I/O TDM B bit clock 3.3V
56 TDMB_DIO0 I/O TDM B input and output data0 3.3V
60 TDMB_FS I/O TDM B L/R clock 3.3V
62 TDMC_DIO1 I/O TDM C input and output data1 3.3V
66 TDMC_DIO0 I/O TDM C input and output data0 3.3V
68 TDMC_FS I/O TDM C L/R clock 3.3V
70 TDMC_SCLK I/O TDM C bit clock 3.3V

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72 MCLK_B O Master clock B 3.3V
Table 2-1 Linkplay A98M module pin description
Notes:
1. I：Input
2. O：Output
3. P：Power
4. IPU：Internal Pull Up
5. IPD：Internal Pull Down
2.2. Mechanical Dimension
Linkplay A98M module has the dimension of 50mm x 43.33mm. The detailed layout will be given shortly below.
Unit: mm
PLUG PCB dimensions:
NGFF connector dimensions:
Top View Dimensions

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TOP Height Limit

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Bottom Height Limit

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Figure 2-2 A98M Physical Dimension
2.3. External Antenna
A98M uses the external antenna for the best Wi-Fi performance. To use external antenna, please choose the antenna
type that meets the requirement of IEEE 802 a/b/g/n/ac Wi-Fi standard running at 2.4GHz/5GHz frequency. The
detailed parameters are shown in the table below.
Item Parameter
Frequency range 2.4 ~ 2.5GHz/4.9 ~ 5.8GHz
Impedance 50 Ohm
VSWR 2 (Max.)
Reflection loss -10dB (Max.)

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Connector I-PEX or populate directly
Table 2-5 External Antenna Parameters for A98M
2.4. Typical Application
A98M series application schematics: A98X_PCM5121_REFERENCE_V07.pdf
2.6 USB OTG Port
Please follow the design rule below to populate the USB host interface:
Item Parameter
Signal Group USB
Topology Differential Pair Point-to-Point
Reference Plane Ground Referenced
Characteristic Trace Impedance (Zo) 90 Ω ±10%
Trace Width 4 mils
Serpentine Spacing (center to center) 8.5 mils
Minimum Isolation Spacing to Clock Signals 50 mils
Minimum Isolation Spacing to Low-Speed Signals 20 mils
Minimum Isolation Spacing to other USB Pair 20 mils
Total Length (with package length) < 8000 mils
Maximum Recommended Via Count 2 (per side)
DM to DP Length Matching (with package length) Match total length to within ±10 mils
Table 2-2 A98M USB design rule
3. Software Introduction
3.1. Feature List
 OOBE
Setup your network, with the help of BLE and SPP, you can connect the device to the home router quickly
 Audio front end
Support software based 2, 4, 6 MIC denoising and stereo acoustic echo cancellation
 Audio post processing
Support software based EQ processing tool such as DSP concept’s audio weaver
 Music stream protocol
Support Spotify Connect, Apple Airplay 2, DLNA and QQ Music QPlay protocol
 Voice Assistant

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Support Amazon Alexa, Tencent Xiaowei, Naver Clova, Yandex Alice, and GVA etc.
 Music content
Support Spotify, Amazon Music, iHeartRadio, Napster, TuneIn, Tidal, Deezer, vTune, Qobuz, Audible, Radio.de,
NPR, Ximalaya, Qingting FM, QQ FM, Douban FM inside, with the help of App, you can search, stream,
playback and preset the music of the above music services in one App
 Multiroom
Support multiroom with hardware assisted synchronization block
Support Airplay, Spotify, Bluetooth, Aux-in multiroom playback.
 Music format
HTTP/HTTPS/RTSP/MMS/TS protocol
HLS/ASX/M3U playlist format
MP3/AAC/FLAC/ALAC/WMA/APE/OGG codec
 BT
Support 5.0: A2DP, AVRCP, HFP, HID profiles
Support BLE
Support EDR
 Preset
With the help of App, you can store the music playlist on the G20 flash memory. Then the end user can play the
playlist by the button/voice or timer even without the App.
3.2. APP Support
 iOS App
≥ iOS6.1, suggest iOS10 and above
 Android APP
≥ Android 4.3.3
 Connect to Linkplay device cloud
Support firmware OTA both from App and background
Log App and device exceptions to the device cloud
 Quick Customization
With the help of the Linkplay compile server, you can change the brand and some strings, change the logo and
some pictures to get a brand customized App
3.3. Certifications
Linkplay can help you complete the following certifications to achieve the fast time to market for product launch.
 Wi-Fi Alliance
 BQB
 Amazon Alexa
 Tencent Xiaowei
 Naver Clova
 Yandex Alice

Doc Title Wireless Smart Audio Module-A98M Series Datasheet Number WMB01152020
Version 0.3
Document No.: WMB01152020 Page 20 of 22
 Google Voice Assistant
 MFi
 Spotify Connect
 DLNA
 QPlay
 Apple Airplay2
4. Module Environmental and Package
4.1. Environmental Ratings
The environmental ratings are shown as following table.
Characteristic Value Units Conditions/Comments
Storage Temperature -5 ~ 45 ℃
Relative humidity Less than 60 % Storage
Less than 80 % Operation
4.2. Electrostatic Discharge Specifications
Extreme caution must be exercised to prevent electrostatic discharge (ESD) damage. Proper use of wrist and heel
grounding straps to discharge static electricity is required when handling these devices. Always store unused
material in its antistatic packaging.
ESD Specifications
Type Symbol Condition ESD Rating Unit
ESD Handling ESD_HAND_HBM
Human Body Model Contact
Discharge per
JEDEC EID/JESD22-A114
1000 V
Machine Model
(MM) ESD_HAND_MM Machine Model Contact 30 V
CDM ESD_HAND_CDM
Charged Device Model Contact
Discharge per
JEDEC EIA/JESD22-C101
300 V
5. Ordering Information
Table 5-1 Part Ordering Information