AVS VWRK4 模组规格书

产品概述

涂鸦 AVS 语音模块 VWRK4 是是基于强大的 ARM 四核 64 位 A35 高能效处理器 RK3308 研发的，搭载语音唤醒和降噪算法的 IoT /智能音箱/语音网关等应用语音模组。主频高达 1.3GHz，强大的计算能力为产品提供强有力的算力支持。

模块板载 RTL8723DS 芯片，支持 Wi-Fi Sing-band 1X1+Bluetooth v2.1+EDR/ Bluetooth3.0 /3.0+HS/4.2，匹配涂鸦云端语音技能和开发者平台，可帮助客户实现 IoT /智能音箱/智能语音网关等产品的语音入口赋能。

特性

• 内置高能效比的64位4核A35 CPU，主频最高支持1.3GHz
• 工作电压：3.3-5.5V（默认5V供电）
• 外设：2Uart，7ADC，RGB666，1SPI，1I2C，2*USB等
• 天线支持：ipex/板载天线（模块连接底板）
• 采样率：16K/16bit
• 语音识别支持：
  • 4路MIC拾音，立体声回采
  • 6路MIC拾音，单通道回采
• 其他
  • 音频输出：立体声HPOUT和立体声LINEOUT
  • 音频AUX IN：支持
  • 推荐唤醒距离：<=5m
  • 娱乐功能：

    • 支持：Amazon music, audible, iHeartRadio, TuneIn

    • 技能汇总：基本Amazon支持所有技能，VWRK4基本涵盖：

    • Newest arrivals, Business & finance, Connected car,Education & reference, Food &drink, Game & trivia, Health & fitness, kids, lifestyle, local, Movies & tv, Music & audio, News, Novelty & humor, productivity, shopping, Smart home, sports, Travel & transportation, Utilities,Weather.

      

MCU	RK3308
Flash	128 MByte
DDR	128 MByte
Mic	2/4 mic array
Wi-Fi	2.4G, b/g/n
BT	经典蓝牙 BLE+BLE4.2
天线	外置天线，预留ipex天线
电源接口	MicroUSB 5V1A
Auxout/Auxin	预留 Auxout/Auxin 接口
其他接口	预留 UART/IIC/PWM/GPIO 接口

App 端介绍

关于Alexa build in和work with Alexa之间的关系。

App 说明

• 设备需要使用Amazon账号进行授权AVS授权使用Amazon语音服务，同时，如果是网关设备，可以添加红外或者Zigbee设备。

  

• 还需要使用涂鸦智能App的App 账号关联Amazon账号，之后可以使用Amazon语音服务控制涂鸦智能账号下的设备。

  

模块尺寸

模块尺寸

K4共有四排引脚，引脚间距为1.5mm；

K4尺寸大小：35mm（W）*35mm（L）*3.2mm（H）

接口定义

!

Pin No.	Pin 名称	Pad 类型	功能
1	GND	P	Power Supply reference ground pin
2	ANT	O	The RF ANT Interface
3	GND	P	Power Supply reference ground pin
4	ADC_KEY_IN2	AI	Analog of ADC Input
5	SAR_ADC_IN3	AI	Analog of ADC Input
6	UNO_RX	I/O	Debug UART RX
7	UNO_TX	I/O	Debug UART TX
8	USB_HOST_DM	I/O	USB Data PIN for Host
9	USB_HOST_DP	I/O	USB Data PIN for Host
10	USB_OTG_ID	I/O	USB ID PIN for OTG
11	USB_OTG_DM	I/O	USB Data PIN for OTG
12	USB_OTG_DP	I/O	USB Data PIN for OTG
13	PHONE_CTRL	I/O	The General I/O Pin
14	PHONE_DET	I/O	The General I/O Pin
15	AUX_IN_CTRL	I/O	Selection of HPout or Lineout/ General I/O
16	SPK_MUTE	I/O	Speaker mute Control Pin /The General I/O Pin
17	MIC_LED	I/O	Control of Led Peripherals/ General I/O
18	GND	P	Power Supply reference ground pin
19	VCC-IO_OUT	P	Power supply pin for Peripherals
20	GND	P	Power Supply reference ground pin
21	VCC-5V	P	Power supply pin(5V)
22	VCC-5V	P	Power supply pin(5V)
23	GND	P	Power Supply reference ground pin
24	IR_RX	I/O	IR Receive Pin / General IO Pin
25	IR_TX	I/O	IR Tranmit Pin / General IO Pin
26	I2C_SDA	I/O	I2C SDA for Peripherals
27	I2C_CLK	I/O	I2C CLK for Peripherals
28	LCD_PWR	I/O	LCD Power Control Pin
29	LCD_BL	I/O	LCD Back light / General IO Pin/PWM
30	LCD_RST	I/O	LCD Reset Pin / General IO Pin
31	LCD_DEN	I/O	LCD Data Enable/ General IO Pin
32	LCD_HS	I/O	LCD Horizontal sync PIN/ General IO Pin
33	LCD_VS	I/O	LCD Vertical sync PIN/ General IO Pin
34	LCD_CLK	I/O	LCD Clk Pin / General IO Pin
35	LCD_D0	I/O	LCD Data Pin / General IO Pin
36	LCD_D1	I/O	LCD Data Pin / General IO Pin
37	LCD_D2	I/O	LCD Data Pin / General IO Pin
38	LCD_D3	I/O	LCD Data Pin / General IO Pin
39	LCD_D4	I/O	LCD Data Pin / General IO Pin
40	LCD_D5	I/O	LCD Data Pin / General IO Pin
41	LCD_D6	I/O	LCD Data Pin / General IO Pin
42	LCD_D11	I/O	LCD Data Pin / General IO Pin
43	LCD_D10	I/O	LCD Data Pin / General IO Pin
44	LCD_D8	I/O	LCD Data Pin / General IO Pin
45	LCD_D7	I/O	LCD Data Pin / General IO Pin
46	LCD_D13	I/O	LCD Data Pin / General IO Pin
47	LCD_D14	I/O	LCD Data Pin / General IO Pin
48	LCD_D9	I/O	LCD Data Pin / General IO Pin
49	LCD_D17	I/O	LCD Data Pin / General IO Pin
50	LCD_D12	I/O	LCD Data Pin / General IO Pin
51	LCD_D15	I/O	LCD Data Pin / General IO Pin
52	LCD_D16	I/O	LCD Data Pin / General IO Pin
53	LCD_SPI_RX	I/O	SPI Data Pin for LCD / General IO Pin
54	LCD_SPI_CLK	I/O	SPI CLk Pin for LCD / General IO Pin
55	LCD_SPI_CS	I/O	SPI CS Pin for LCD / General IO Pin
56	LCD_SPI_TX	I/O	SPI Data Pin for LCD / General IO Pin
57	GND	P	Power Supply reference ground pin
58	HPOUT_R	AO	Headphone output Right
59	HPOUT_L	AO	Headphone output Left
60	LINEOUT_R	O	Line output Right
61	LINEOUT_L	O	Line output Left
62	MIC2N	AI	The Audio Analog input
63	MIC2P	AI	The Audio Analog input
64	MIC3N	AI	The Audio Analog input
65	MIC3P	AI	The Audio Analog input
66	MIC4N	AI	The Audio Analog input
67	MIC4P	AI	The Audio Analog input
68	MIC5N	AI	The Audio Analog input
69	MIC5P	AI	The Audio Analog input
70	MIC6N	AI	The Audio Analog input
71	MIC6P	AI	The Audio Analog input
72	MIC7N	AI	The Audio Analog input
73	MIC7P	AI	The Audio Analog input
74	MIC8N	AI	The Audio Analog input
75	MIC8P	AI	The Audio Analog input
76	GND	P	Power Supply reference ground pin
77	AP_CTS	I/O	UART1 CTS PIN / General IO Pin
78	AP_RTS	I/O	UART1 RTS PIN / General IO Pin
79	AP_RX	I/O	UART1 RX PIN / General IO Pin
80	AP_TX	I/O	UART1 TX PIN / General IO Pin
81	RST	O	The System HardWare Reset Pin
82	ADC_KEY_IN1	AI	Analog of ADC Input

注意：

• P 代表供电pin角，I/O 表示输入/输出pin角，AI表示模拟输入pin，AO表示模拟输出pin。
• RST 表示硬件端重启按键
• UNO_TX/RX 是用户串口pin角，也可用于系统debug

电气参数

绝对电气参数

参数	描述	最小值	最大值	单位
Ts	存储温度	-40	70	℃
VCC	供电电压	-0.3	5.5	V
静电释放电压（人体模型）	TAMB-25℃	N/A	2000	V
静电释放电压（机器模型）	TAMB-25℃	N/A	500	V

工作条件

参数	描述	最小值	典型值	最大值	单位
Ta	工作温度	0	NA	70	℃
VCC	工作电压	4.2	5	5.5	V
Vil	IO低电平输入	NA	NA	0.8	V
Vih	IO高电平输入	2	NA	3.3+0.3	V
Vol	IO低电平输出	NA	NA	0.4	V
Voh	IO高电平输出	2.9	3.3	-	V
Imax	IO驱动电流	-	2	8	mA

发射功耗

Wi-Fi 发射功耗

Wi-Fi TX	Parameter	Parameter	Parameter	Typical	Unit
Wi-Fi TX	Mode	Rate	Transmit Power
IRF	11b	11Mbps	+17dBm	267.2	mA
IRF	11g	54Mbps	+14.5dBm	272.0	mA
IRF	11n/HT20	MCS7	+13.5dBm	246.0	mA
IRF	11n/HT40	MCS7	+13.5dBm	246.0	mA

注意：工作条件：VBAT=5V，VDD_ANA=1.8V，internal TOP LDO supply

Wi-Fi 接收功耗

Wi-Fi RX	Parameter	Typical	Unit	Typical	Unit
ACTIVE	1M DSSS	72	mA
ACTIVE	54M OFDM	84	mA	267.2	mA
DEEP SLEEP	11b	55	mA	272.0	mA
DEEP	11g	-	mA	246.0	mA
DEEP	11n/HT40	MCS7	+13.5dBm	246.0	mA

注意：工作条件，VBAT=5V，VDD_ANA=1.8V，internal TOP LDO supply

蓝牙发射功耗

BT TX	Parameter	Parameter	Parameter	Typical	Unit
BT TX	Mode	Rate	Transmit Power
IRF	BR	1Mbps	9dBm	267.2	mA
IRF	EDR	3Mbps	8dBm	272.0	mA
IRF	BLE	1Mbps	+8.5dBm	246.0	mA

注意：工作条件，VBAT=5V，VDD_ANA=1.8V，internal TOP LDO supply

蓝牙接收功耗

BT RX	Mode	Parameter	Typical	unit	Unit
IRF	BR	DH1	-93	dBm
IRF	BR	DH5	-93	dBm	mA
IRF	EDR	2Mbps	-92	dBm	mA
IRF	EDR	3Mbps	-85	dBm	mA
IRF	BLE	1Mbps	-98	dBm
IRF	BLE	DH1	-93	dBm

注意：工作条件 VBAT=5V，VDD_ANA=1.8V，internal TOP LDO supply。

工作模式下功耗

工作模式 工作状态，Ta=25℃，VCC=5V

工作模式	工作状态，Ta=25℃，VCC=5V PA输出功率为0.5W，SPK为4欧姆	平均值	最大值	单位
快联配网状态	模块处于快联配网状态	193	876	mA
空闲网络连接状态	模块处于联网状态	145	828	mA
语音控制状态	模块处于联网，同时语音唤醒	239	892	mA

注：以上参数依据不同的固件功能，参数有所不同。

射频特性

基本射频特性

参数项	详细说明
工作频率	2.400~2.484GHz
Wi-Fi标准	IEEE802.11b/g/n20/n40(通道 1-14)
蓝牙标准	V2.1+EDR/BT V3.0/BT V3.0+HS/BT V4.0/V4.2
Wi-Fi 调制类型	802.11b: CCK, DQPSK, DBPSK 802.11g: 64-QAM,16-QAM, QPSK, BPSK 802.11n: 64-QAM,16-QAM, QPSK, BPSK
蓝牙调制类型	8DPSK, π /4 DQPSK, GFSK
Wi-Fi 数据传输速率	11b:1,2,5.5,11(Mbps) 11g:6,9,12,18,24,36,48,54(Mbps) 11n:HT20MCS0~7 11n:HT40MCS0~7
蓝牙数据传输速率	Basic Rate：1 Mbps BLE: 1Mbps/2 Mbps Enhanced Data Rate(EDR)：2Mbps/3 Mbps
天线类型	可支持IPEX外接天线 / 板载天线通过板子上半孔连接

输出功率（TX连续发送功率，VBAT=5V）

Wi-Fi 发射功率

参数项		最小值	典型值	最大值	单位
RF 平均输出功率，802.11bCCKMode	11M	-	17	-	dBm
RF 平均输出功率，802.11gOFDMMode	54M	-	14.5	-	dBm
RF 平均输出功率，802.11n/20M Mode	MCS7	-	13.5	-	dBm
RF 平均输出功率，802.11n/40M Mode	MCS7	-	13.5	-	dBm
频率误差		-20	-	20	ppm

蓝牙发射功率

参数项		最小值	典型值	最大值	单位
RF 平均输出功率，BR Ｍode	1M	-	+9	-	dBm
RF 平均输出功率，EDR Mode	3M	-	+8	-	dBm
RF 平均输出功率，BLE Mode	1M	-	+8.5	-	dBm
频率误差		-10	-	10	ppm

接收灵敏度（RX灵敏度，VBAT=5V）

Wi-Fi接收灵敏度

参数项		最小值	典型值	最大值	单位
RF 平均输出功率，802.11b Mode	1M		-92	-	dBm
RF 平均输出功率，802.11bCCKMode	11M		-86	-	dBm
RF 平均输出功率，802.11gOFDMMode	54M		-74	-	dBm
RF 平均输出功率，802.11nOFDMMode	MCS7		-72	-	dBm
RF 平均输出功率，802.11n/40M Mode	MCS7	-	-72	-	dBm

蓝牙接收灵敏度

符号	参数	参数	参数	单位
	模式	速率	典型值
IRF	BR	DH1	-91	dBm
IRF	BR	DH5	-91	dBm
IRF	EDR	2Mbps	-90	dBm
IRF	EDR	3Mbps	-84	dBm
IRF	BLE	1Mbps	-95	dBm

天线信息

天线类型

K4默认使用板载IPEX连接器与外置FPC天线进行连接。用户也可以通过模组ANT接口来自行设计底板PCB天线进行扩展来满足具体产品的需求。通用的降低天线干扰的方案可以参考我司模组相关天线设计文档。

A.模块天线和其他金属部分的间距要大于15mm

B. 如果使用IPEX天线，如下的参考可以给大家参考

• IPEX连接器在PCBA边缘

• IPEX连接器周围，不能有什么遮挡物

  注意：此建议为使用IPEX外接天线参考

VWRK4 模块使用IPEX天线连接器和FPC天线。推荐FPC天线使用涂鸦推荐设计天线，由东莞UB电气公司生产的天线

如下FPC天线与VWRK4模块是通过FCC认证，如果客户使用其他天线，FCC必须要使用新的天线重新测试FCC。

涂鸦推荐FPC天线具体参数

内容	技术参数特性
Manufacturer	UB
Product model	UB01C07F3D1388A
Frequency Range (MHZ)	2400~2500
Impedance(Ω)	50
AVG Gain(dBi)	2.13
VSWR	≤1.92
Admitted Power	1W
Polarization	Line
Connector Type	RF Cable+Terminal
Antenna Base	FPC
Operating Temp	-20℃~+70℃
Storage Temp	-20℃~+70℃

下图为天线具体实物，此款天线的所有参数，可以在上述表格中间获取。

生产指南

1. 涂鸦出厂的贴片封装模组建议使用SMT机器贴片，拆开包装后建议在24小时内完成焊接，如果拆封后未使用完建议放置在湿度不超过10%RH的干燥柜内，或重新进行真空包装并记录暴露时间，总暴露时间不超过168小时。
   • SMT贴片所需仪器或设备：
     • 贴片机
     • SPI
     • 回流焊
     • 炉温测试仪
     • AOI
   • 烘烤所需仪器或设备：
     • 柜式烘烤箱
     • 防静电耐高温托盘
     • 防静电耐高温手套
2. 涂鸦出厂的模组存储条件如下：

   • 防潮袋必须储存在温度＜40℃、湿度＜90%RH的环境中

   • 干燥包装的产品，保质期为从包装密封之日起12个月的时间

   • 密封包装内装有湿度指示卡：

     

3. 涂鸦出厂的模组当出现可能受潮的情况下需要进行烘烤：
   • 拆封前发现真空包装袋破损
   • 拆封后发现包装袋内没有湿度指示卡
   • 拆封后如果湿度指示卡读取到10%及以上色环变为粉色
   • 拆封后总暴露时间超过168小时
   • 从首次密封包装之日起超过12个月
4. 烘烤参数如下：
   • 烘烤温度：卷盘包装60℃，湿度小于等于5%RH；托盘包装125℃，湿度小于等于5%RH（耐高温托盘非吸塑盒拖盘）
   • 烘烤时间：卷盘包装48小时；托盘包装12小时
   • 报警温度设定：卷盘包装65℃；托盘包装135℃
   • 自然条件下冷却到36℃以下后，即可进行生产
   • 若烘烤后暴露时间大于168小时没有使用完，请再次进行烘烤
   • 如果暴露时间超过168小时未经过烘烤，不建议使用回流焊接工艺焊接此批次模组，因模组为3级湿敏器件超过允许的暴露时间产品可能受潮，进行高温焊接时可能会导致器件失效或焊接不良
5. 在整个生产过程中请对模组进行静电放电（ESD）保护。
6. 为了确保产品合格率，建议使用SPI和AOI测试设备来监控锡膏印刷和贴装品质。

推荐炉温曲线

请根据回流焊曲线图进行SMT贴片，峰值温度245℃，回流焊温度曲线如下图所示：

• A：温度轴

• B：时间轴

• C：合金液相线温度：217-220℃

• D：升温斜率：1-3℃/S

• E：恒温时间：60-120S；恒温温度：150-200℃

• F：液相线以上时间：50-70S

• G：峰值温度：235-245℃

• H：降温斜率：1-4℃/S

  注意：以上推荐曲线以SAC305合金焊膏为例。其他合金焊膏请按焊膏规格书推荐炉温曲线设置。

储存条件

附录：声明

Federal Communications Commission (FCC) Declaration of Conformity

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.

Note: 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 or more 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.

Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled rolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body.

Important Note

This radio module must not be installed to co-locate and operating simultaneously with other radios in the host system except in accordance with FCC multi-transmitter product procedures. Additional testing and equipment authorization may be required to operate simultaneously with other radio.

The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end-user.

The host product manufacturer is responsible for compliance with any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.

The end-user manual shall include all required regulatory information/warning as shown in this manual, including: This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body.

This device has got an FCC ID：2ANDL-VWRK4. The final end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID:2ANDL-VWRK4”

This device is intended only for OEM integrators under the following conditions:

1. The antenna must be installed such that 20cm is maintained between the antenna and users, and

2. The transmitter module may not be co-located with any other transmitter or antenna.

As long as the 2 conditions above are met, further transmitter tests will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.

Declaration of Conformity European notice

Hereby, Hangzhou Tuya Information Technology Co., Ltd declares that this module product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EU,2011/65/EU.A copy of the Declaration of conformity can be found at https://www.tuya.com

With the EU directive for waste electrical and electronic equipment (WEEE- 2012/19/EU). Instead，it should be disposed of by returning it to the point of sale, or to a municipal recycling collection point.