Zhejiang Lierda Internet of Things technology LSD4BT K5X User Manual

LSD4BT-K53x

Product Characteristics

·Working Frequency Band

- Working frequency band: 2402-2480MHz

·Ultra-low Power Consumption

- Support 2.7V-3.6V power supply

- Emission current: ≤20mA (10dBm power

configuration)

- Receiving current: ≤7.5mA (overall current)

- Sleep current: 400nA (SRAM not saving)

·High-link Budget

- Sensitivity-96dBm±1dBm (1Mbps, PER<30.8%)

- Emission power: Max.12dBm

·Memory Resources

- Internal 512kB Flash (the capacity that

the client can actually use is less than

512kB)

- 48kB on-chip SRAM, wherein 32kB can

sleep and save

·Compatibility

- Designed interface mode with side

plug-in and stamp holes compatible

·Mesh Functions

- Support BLE

- Support the Bluetooth SIG Mesh

- Support the exclusive Mesh of Telink

·Communication Interface

- 2 PWM / 4 GPIO / 1 UART （ Pin

multiplexing）

Applicable Scenes

- Smart phone and tablet peripherals;

- Bluetooth remote control;

- Sports and health tracking, health care;

- Wearables;

- Smart light control, smart home, smart

city;

- Logistics transportation tracking;

- Consumer electronics;

- Building automation

- Industrial control

K53BLEmesh Standard Module (PCB Antenna)

K53 series of low-power Bluetooth module is a high-performance Bluetooth module which is

developed based on the Telink low-power Bluetooth SOC TLSR8250 chip. The module adopts the

stamp-type and side plug-in interfaces, is exquisite and compact, is fully lead out via ports and convenient

to use, and helps the users omit the complicated RF hardware design, development and production links.

Therefore, the users can easily realize the development of Bluetooth application programs on that basis,

shorten the R&D cycle, and seize the market opportunities. This model is a pure hardware module that

excludes any software. If you need the edition with software, please notify in advance.

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Thanks for choosing Lierda products. Please read through this Manual before using the

Version

Date

Author

Major Changes

1.00

2018/12

RenFei Zuo

Preliminary release

products. By using the products, you have understood and accept the terms and

instructions in this Manual.

Lierda Science & Technology Co., LTD reserves all legal rights to revise and explain the

terms and information provided, without prior notices.

Zhejiang Lierda IoT Technology Co., Ltd provides this document to support the product

design of users. Users should design their products according to the specifications and

parameters provided in the document.Lierda shall not bear any liability for personal injury

or property loss caused by improper operation of users. Lierda has the right to update the

document without notice.

The copyright of this document belongs to Lierda . Any person who reproduces and copy

this document without permission of our company will bear legal responsibility.

Revision History

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ORIGINAL EQUIPMENT MANUFACTURER (OEM) NOTES

 The OEM must certify the final end product to comply with unintentional radiators (FCC Sections 15.107

and 15.109) before declaring compliance of the final product to Part 15 of the FCC rules and regulations.

Integration into devices that are directly or indirectly connected to AC lines must add with Class II

Permissive Change.

 The OEM must comply with the FCC labeling requirements. If the module’s label is not visible when

installed, then an additional permanent label must be applied on the outside of the finished product which

states: “Contains transmitter module FCC ID: 2AOFDLSD4BT-K5X ”. Additionally, the following

statement should be included on the label and in the final product’s user manual: “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 interferences, and(2)this device must accept any interference received, including

interference that may cause undesired operation.”

 The module is limited to installation in mobile or fixed applications. Separate approval is required for all

other operating configurations, including portable configuration with respect to Part 2.1093 and different

antenna configurations.

 A module or modules can only be used without additional authorizations if they have been tested and

granted under the same intended end‐use operational conditions, including simultaneous transmission

operations. When they have not been tested and granted in this manner, additional testing and/or FCC

application filing may be required. The most straightforward approach to address additional testing

conditions is to have the grantee responsible for the certification of at least one of the modules submit a

permissive change application. When having a module grantee file a permissive change is not practical or

feasible, the following guidance provides some additional options for host manufacturers. Integrations

using modules where additional testing and/or FCC application filing(s) may be required are: (A) a module

used in devices requiring additional RF exposure compliance information (e.g., MPE evaluation or SAR

testing); (B) limited and/or split modules not meeting all of the module requirements; and (C) simultaneous

transmissions for independent collocated transmitters not previously granted together.

This Module is full modular approval, it is limited to OEM installation ONLY.

Integration into devices that are directly or indirectly connected to AC lines must add with Class II

Permissive Change.

(OEM) Integrator has to assure compliance of the entire end product incluld the integrated Module.

Additional measurements (15B) and/or equipment authorizations (e.g Verification) may need to be

addressed depending on co-location or simultaneous transmission issues if applicable.

(OEM) Integrator is reminded to assure that these installation instructions will not be made available to the

end user of the final host device.

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CONTENTS

1 Specifications & Parameters

2 Dimensional Drawing and Pin Definitions

2.1 Dimensional Drawing

2.2 Pin Definitions

3 Basic Operations

3.1 Pins

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..............................................................................................................................................

3.2 Notices to Hardware Layout

3.3 Antenna Clearance

4 Common Problems

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4.1 Communication Failure of Module in Near Distance

4.2 Abnormal Power Consumption of Module

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4.3 Insufficient Communication Distance of Module

4.4 Module Authentication

5 Production Guide

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5.1 Production Guide

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5.2 Requirements on Module Position on Bottom Plate

5.3 Opening Design of Steel Mesh

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5.4 Standard Operation Procedure (SOP) of Reflow Soldering

6 Packaging

6.1 Packaging material

6.2 Package size

6.3 Packaging direction

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6 7

8 8 8

10 10 10 10

12 12 12 13

14 14 15

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1 Specifications & Parameters

Parameters

Performance

Remarks

Min

TYP

Max

Supply voltage（V）

2.7

3.3

3.6

Work temperature（℃）

-40-85

Initial frequency tolerance

(KHz)

-30-+30

Below 25℃

Work frequency (GHZ)

2.402

2.480

Support customized frequency setting

Power

consumption

Transmit

(mA)

171820

Output power 10dBm，system timer 16MHz

5.5

6.8

Output power 0dBm，system timer 16MHz

Receive

(mA)

5.5

6.5

7.5

Overall current

Sleep

(uA)

0.151Deep sleep, n

ot save SRAM

Transmit power (dBm)

-2510-

Transmit power can be configured

through software

RSSI (dBm)

-95

-96

1Mbps，PER<30.8%

Communication protocol

BLE5/4.2/Mesh

Interface type

stamp /side inserted

Dimensional accuracy

GB/T1804-C level

Meet the dimensional tolerance class C

Parameters

Performance

Remarks

Min

Max

Supply voltage （V）

-0.3

+3.6

All AVDD and DVDD with

same voltages

Max voltage of input pins

-0.3

VDD+0.3

Storage temperature（℃）

-65

150

Table 1-1 Limit Parameters of Module

Table 1-2 Working Parameters1of Module

2 Dimensional Drawing and Pin Definitions

The physical diagram of LSD4BT-K53ASTD001 is as shown in Fig. 2-1. There will be a label on the

shield cover, and it shall be subject to the physical product.

The test is conducted at 25℃ in a shielded room environment.

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Zhejiang Lierda Internet of Things technology LSD4BT K5X User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Specifications & Parameters

2 Dimensional Drawing and Pin Definitions