Introduction to WiFi Module--TYLC2

WiFi module introduction–TYLC2

1.Product Overview

​ TYLC2 is a low-power, embedded Wi-Fi module developed by Hangzhou Tuya Information Technology Co., Ltd. specifically designed for use in smart lighting applications. The module consists of the highly integrated Wi-Fi SoC ESP8266EX, an external flash memory, and a DC/DC regulator circuit. It comes with a built-in Wi-Fi network protocol, and a large number of library functions. TYLC2 also contains a low-power 32-bit CPU, 1Mbyte flash, 36K SRAM, and a large variety of peripheral resources.

​ TYLC2 is an RTOS platform that gathers all Wi-Fi MAC and TCP/IP libraries into one place. It enables users to build on the product and develop embedded Wi-Fi products that suit their individual needs.

The ESP8266 diagram is as shown in Figure 1:

​ Figure1 ESP8266 Diagram

1.1 Features

  • Built-in low-power 32-bit CPU that doubles as an application processor

​ Supports CPU frequencies of 80MHz and 160MHz

  • Operating voltage: 5-38V (31-38v by default)
  • Peripherals: 4×GPIOs (including 2×I2Cs)
  • Wi-Fi connectivity

​ 802.11 b/g/n

​ Channels 1-14@2.4GHz

​ Supports WPA/WPA2

​ +20dBm output in 802.11b mode

​ Supports STA/AP/STA+AP modes

​ Supports SmartConfig (for both Android and IOS devices)

​ Operating temperature: -20℃ to 70℃ (commercial); -40℃ to 85℃ (industrial)

1.2 Primary fields of application

  • Industrial wireless control

  • Smart lighting

2. Module Interfaces

2.1 Package dimensions

​ TYLC2 has 2 rows of pins (2×4) with 2.0mm pitch.

​ TYLC2 dimensions: 26 mm (W) × 20 mm (L) × 3.5 mm (H); package as shown in Figure 2:

​ Figure2 TYLC2 Dimensional Drawing

2.2 Pin definition

Conventional pins are defined as shown in Table 1:

​ Table 1 TYLC2 Pinout

Notes: P indicates the power pin; I/O indicates the input/output pin

3. Electrical Parameters

3.1 Absolute electrical parameters

​ Table 2 Absolute Parameters

Parameters Description Min Max Unit
Ts Storage temperature -40 85
VIN Input voltage -0.3 40 V
Electrostatic discharge voltage (human-body model) TAMB-25℃ - 2 KV
Electrostatic discharge voltage (machine model) TAMB-25℃ - 0.5 KV

3.2 Operating conditions

Table 3 Normal operating conditions

Parameters Description Min Typ Max Unit
Ta WorkingTemp(Commercial) -20 - 70
Ta WorkingTemp(Industrial) -40 85
VIN Operating voltage 5* - 38 V
VIL IO low input -0.3 - 0.8 V
VIH IO high input 2.47 - 3.6 V
VOL IO low output - - 0.34 V
VOH IO high output 2.64 - 3.4 V
Imax IO drive current - - 12 mA
Cpad Input pin capacitance - 2 pF

*:The minimum factory default operating voltage is set to 31V.

Please specify a different value in the order if otherwise necessary

3.3 Wi-Fi TX power consumption

Table 4 TX continuous power @3.3V

Symbol Mode Rate Typ Unit
IRF 11b 11Mbps 260 mA
IRF 11g 54Mbps 100 mA
IRF 11n MCS7 100 mA

3.4 Wi-Fi RX power consumption

Table 5 RX continuous power @3.3V

Symbol Mode Rate Typ Unit
IRF 11b 11Mbps 70 mA
IRF 11g 54Mbps 70 mA
IRF 11n MCS7 70 mA

3.5 Power consumption in operating mode

Table 6 Operating current @3.3V

Operation Mode Operating condition, TA=25 Typ Peak* Unit
Quick configuration Fast blinking light during quick configuration 100 151 mA
Hotspot configuration Slow blinking light during hotspot configuration 105 451 mA
Network connection idle Connected to a network 58.5 411 mA
Network connection active Connected to a network 100 411 mA
Disconnected Not connected to any network 156 430 mA

Notes: The peak period is approx. 5us.

​ The abovementioned parameters are the measurement results for DC/DC output voltage 3.3 V. The DC/DC converter has an efficiency of approx. 90%.

​ The parameters above may vary according to firmware.

4. RF Characteristics

4.1 Basic RF characteristics

​ Table 7 Basic RF characteristics

Parameter Description
Operating frequency 2.400~2.500GHz
Wi-Fi standard IEEE 802.11b/g/n (Channels 1-14)
Data transfer rate 11b:1,2,5.5, 11 (Mbps)
11n:HT20 MCS0~7
Antenna type PCB onboard antenna

4.2 Wi-Fi output power

​ Table 8 TX Continuous Power During Transmission

Parameter Min Typ Max Unit
RF average output power, 802.11b CCK Mode 11M - 17 - dBm
RF average output power, 802.11g OFDM Mode 54M - 15 - dBm
RF average output power, 802.11n OFDM Mode MCS7 - 13 - dBm
Frequency error -20 - 20 ppm

4.3 Wi-Fi RX sensitivity

​ Table 9 RX Sensitivity

Parameter Min Typ Max Unit
PER<8%, RX sensitivity, 802.11b CCK Mode 11M - -91 - dBm
PER<10%, RX sensitivity, 802.11g OFDM Mode 54M - -75 - dBm
PER<10%, RX sensitivity, 802.11n OFDM Mode MCS7 - -72 - dBm

5. Antenna Signal

5.1 Antenna interference reduction

​ To optimize Wi-Fi performance of the Wi-Fi module in combination with the PCB onboard antenna, it is recommended to keep the antenna at least 15mm away from other metal components.

6. Manufacturing Work Instructions

6.1 Manufacturing work instructions

The storage conditions for the module after it is shipped are as follows:

  1. The moisture resistant bag must be stored at a temperature below 30℃, and under a relative humidity below 85%.
  2. The shelf life of dry, packed products is six months following the package date.

Important information

  1. All line workers must wear antistatic wrist straps throughout the entire production process.
  2. It is strictly prohibited to allow a module to come into contact with water or other contaminants during operations.

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