Hangzhou Tuya Information Technology TYBT2 BLE Module User Manual TYBT2 EN V1x

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Date Submitted	2018-03-20 00:00:00
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TYBT2 DATASHEET
TuyaSmartBLEModule
1. Product Overview
TYBT2 is a Bluetooth (BLE) moduledesigned by HangZhouTuya Technology Corporation.
The BLE Module consistsof a highly integratedwireless Bluetooth chipTLSR8266 and someextra
electric circuitsthathave been programed with Bluetoothnetwork protocol and plenty of software
examples.TYBT2 includea 32-bit CPU, BLE, 512K byte flash, 16k SRAM, and 9 multiplex IO
pins.
Figure 1 shows the block diagramof the TYBT2.
Figure 1. The block diagram of the TYBT2
3.3V input
IO interface
I2C
UART
PWM
BLE
MCU FREQ
48MHz
SRAM
16K Bytes
FLASH
12M
Crystal
512K
BLE 4.0/Slave
2.4GHz radio
PCB
on-board
antenna
1.1 Features





Integrated low power consumption 32-bit CPU, also known as application processor
Basic frequency of the CPU can support 48 MHz
Supply voltage range: 1.9V to 3.6V
Peripherals: 5*PWM,1*I2C, 1*UART
BLE RF features:
 Compatible with BLE 4.0
 Transmitting data rate can go up to 1Mbps
 TX transmitting power: +7dBm
 RX receiving sensitivity: -92dBm
 AES hardware encryption
 On-board PCB antenna
TYBT2 DATASHEET

Operating temperature range: -20℃ to 85℃
1.2 Main ApplicationFields



Intelligent LED
Intelligent household applications
Intelligent low-power consumptionsensors
TYBT2 DATASHEET
2. Dimensions and Footprint
2.1Dimensions
TYBT2have double sides of pins. The distance between each Pin is 2.0mm.
Size of TYBT2: 15mm(W)*16.5mm(L).
Figure 2 shows the dimensions of TYBT2.
Figure 2. The dimensions of TYBT2
2.2 Pin Definition
Table 1 shows the generalpin attributes of TYBT2
Table 1. The typical pin definitionof TYBT2
PIN NO.
NAME
TYP
DESCRIPTION
SDA
I/O
I2C, data interface,internal pull-up 4.7k resistance
SCL
I/O
I2C, clock interface, internal pull-up 4.7k resistance
I/O
normal IO pin, can be used as PWM output pin, default for
Green LED line
I/O
normal IO pin, can be used as PWM output pin, default for Blue
LED line
WW
I/O
normal IO pin, can be used as PWM output pin, default for
Warm White LED line
CW
I/O
normal IO pin, can be used as PWM output pin, default for Cold
White LED line
I/O
normal IO pin, can be used as PWM output pin, default for Red
LED line
3.3V
Supply voltage
TYBT2 DATASHEET
TX
I/O
UART TX,can be used as normal IO pin
10
RX
I/O
UART RX,can be used as normal IO pin
11
GND
Ground
12
SW
I/O
Bluetooth chipset burning pin
13
RST
reset pin for the module,internal pull-up 4.7k resistance
14
GND
Ground
Note: S: Power supply pins; I/O: Digital input or output pins.
SW pin is ONLY used for burning firmware, Can NOT be used for other functions.
There are 4.7 pull-up resistance internally for I2C pins, external pull-up resistances are not
necessary.
When WW pin is outputting PWM signal, It has opposite phase comparing the PWM signal
from R/G/B/CW pin.
If there’s any customization needed for PWM output, please contact our BD manager.
TYBT2 DATASHEET
3. Electrical Characteristics
3.1 Absolute Maximum Ratings
Table 2. Absolute Maximum Ratings
PARAMETERS
DESCRIPTION
MIN
MAX
UNIT
Ts
Storage
temperature
-20
85
℃
VCC
Supply voltage
-0.3
3.9
Electrostatic release quantity
(Human body model)
TAMB-25℃
KV
Electrostatic release quantity
(Machine model)
TAMB-25℃
0.5
KV
3.2 Electrical Conditions
Table 3. Electrical Conditions
PARAMETERS
Ta
DESCRIPTION
MIN
TYPIC
AL
MAX
UNIT
Temperature for Commercial grade
-20
85
VCC
Supply voltage
2.5
3.3
3.6
℃
VIL
IO negative level input
-0.3
VCC*0.25
VIH
IO positive level input
VCC*0.75
VCC
VOL
IO negative level output
VCC*0.1
VoH
IO positive level output
VCC*0.8
VCC
3.3Transmitting Current Consumptions
Table 4. TX current consumption
PARAMETERS
MODE
TYPICAL
UNIT
Itx
Continuously transmitting, 0dBm power output
13
mA
Irx
Continuously receiving
13
mA
IDC
Normal working mode
80
uA
TYBT2 DATASHEET
4. Radio Specification
4.1 Basic Radio Frequency Characteristics
Table 5.Basic Radio frequency characteristics
PARAMETERS
DESCRIPTION
Working Frequency
2.4GHz ISM band
Radio standard
BLE 4.0
Data transmitting rate
1Mbps
Type of Antenna
On-board PCB Antenna
4.2TransmittingPower
Table 6. Transmitting power
PARAMETERS
MIN
MAX
TYPICAL
UNIT
RF Average output power
consumption
3.8
dBm
20dB bandwidth
1000
KHz
4.3Receiving Sensitivity
Table 7. Receiving sensitivity
PARAMETERS
MIN
TYPICAL
MAX
UNIT
RX sensitivity
1Mbps
-93
-92
-90
dBm
Frequency bias error
-300
300
KHz
Co-channel interference Restrain
-7
dB
TYBT2 DATASHEET
5. Antenna Information
5.1 Antenna Type
Antenna for TYBT2 module is using 2.4 GHz MIFAOn-board PCBantenna.
5.2 Reduce Antenna Interference
nterference
Inn order to have the best RF performance, it’s recommended to keep a minimum15mm
distance between the antenna part and the other metal pieces.
Since PCBA
A manufacture use SMT process to weld TYBT2 module and other electrical
components onto the PCB board, RF performance will depend on the layout location and patt
pattern
of the On-board
board PCB antenna. The following figures are some recommended and
dis-recommended demonstrations from out R&D team.
In demonstration 1 and 2 of figure 3, the on
on-board PCB antenna lays outside of the PCB
frame. It’s recommended to use layout pattern shown in demonstration 1 and 2. Either the
on-board PCB antenna lays outside of the PCB frame directly or PCB frame carve
car out a certain
area for the antenna. The overall PCBA performance for these two ways will be the same as
testing the module independently.
Restricted due to some reason, iif the on-board PCB antenna layout
ut has to be inside the PCB
frame, it’s suggested to refer
er to demonstration 3. The antenna
enna lays inside the PCB frame, but no
copperor wire beneath the antenna. RF performance will have some loss, approximately 1~2 dBm.
It’s NOT recommended to use demonstra
demonstration 4, the antenna lays inside the PCB frame, and
there are copper and wire beneath it. RF performance will have significantattenuation
attenuation.
Figure 3.layoutdemostrations
Demonstration 1: Antenna lay outside the
Demonstration 2: Antenna lay outside
PCB frame
the PCB frame with carved area
TYBT2 DATASHEET
Demonstration 3: Antenna lay inside the PCB
Demonstration 4: Antenna lay inside the PCB
frame without copper or wire beneath it
frame with copper or wire beneath it
TYBT2 DATASHEET
6. Packaging Information And Production Guide
6.1 Mechanical Dimensions
Figure 4.Dimensionsof the module
6.2 Production Guide
The storage for the delivered module should meet the following condition:
1. The anti-moisture bag should be kept in the environment withtemperature< 30℃ and
humidity< 85% RH.
2. The expiration date is 6 months since the dry packaging products was sealed.
 Cautions:
1. All the operators should wear electrostatic ringin the whole process of production.
2. While operating, water and dirt should not have any contact with the modules.

FCC Statement
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the 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.
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.
FCC Label Instructions
The outside of final products that contains this module device must display a label referring to the
enclosed module. This exterior label can use wording such as: "Contains Transmitter Module FCC
ID: 2ANDL-TYBT2 or “Contains FCC ID:2ANDL-TYBT2 , Any similar wording that expresses
the same meaning may be used.

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