Pairlink Rabbit-C Bluetooth 5 BLE Module User Guide

This document contains information that is proprietary to Pairlink . This document is commercially confidential and must NOT be disclosed to third parties without prior consent. The information provided herein is believed to be reliable. But production testing may not include testing of all parameters. Pairlink reserves the right to change information at any time without notification.

  • Version:
    • V1.0
    • V2.0
  • Note
    • Create
    • Modify Confidential Information
  • Date
    • 2021/06/30
    • 2021/09/01

Main Application Domain

  1. MCU data pass-through.
  2. Bluetooth Printer / Scanner / Digital price tag etc.
  3. Remote control / Keyboard and Mouse / Toys / Smart phone self timer etc.
  4. Industrial remote control / Industrial telemetry / Industrial data collection.
  5. Smart home / Intelligent lighting / Intelligent access control system.

Electrical Specifications

Absolute Ratings

Parameter

SpecificationUnit
Min.Max.
Power Supply(V)-0.3V+3.6V

Burn the module permanently if it exceeds +3.6V

Storage temperature(℃)

-55+125
Working temperature (℃)-40+85

ESD HBM

-3.5KV+3.5KVHuman Body Model
ESD CDM-500V+500V

Charged Device Model

Recommended Operating Conditions

Parameter

Specification

Note

Min.TypicalMax.
Power Supply(V)1.83.33.6
Communication level(V)3.3Can’t communicate with 5V TTL level directly
Working temperature(℃)-4020+85Industry Standard
TX Current (mA)10.2TX Power=+4dBm
12.7TX Power=+8dBm
ConsumeRX Current (mA)6.8VBAT=3V3,1Mbps
Sleep Current (uA)3.8Deep-sleep ,Supports GPIO wake-up and timer wake-up
TX Power(dBm)+8
Receive Sensitivity(dBm)-971Mbps

Digital I/O Characteristic

CharacteristicsConditionSymbolSpecificationUnit
Min.TypicalMax.
Input Low VoltageVBAT=3V3VIL00.9V
Input High VoltageVIH2.03.33.6V
Output Low VoltageVOL00.33V
Output High VoltageVOH2.973.3V
Physical Parameters
ParameterPerformanceNote
Communication Distance50MData Transfer (BLE) Environment: Sunny and open Airspeed: 1Mbps
With PLANT-96mm Cable antenna
Crystal40MHzIndustry Standard
ProtocolBLE 5Supported data rates: 1Mbps,2Mbps
PackagePatchRefer to Section 3.3
ICRTL8762CMFPackaging:QFN-40
CoreARM Cortex-M4
RAM160KByte
Flash4MbitsEmbedded SOC memory
Dimensions20.5mm*14.0mm*2.6mmL*W*H
RF InterfaceIpex ConnectorWide selection of antenna is available

Hardware Design and PCB layout

Pin assignment and Pin description

Rabbit-C Pin definition can refer to Figure 1.
Table 1: Module Pin Description

Pin Number

Pin NameI/OAlternate Function Description
11VBATP

Power Supply(DC1.8V~3.6V).

1,17,24,27

GNDPConnect to Ground.
12RESETDI

Reset signal (active high).

13

LOG_OUTDIOLog_out,not intended for customer use.
20P3_1DIO

GPIO/UART_RX

21

P3_0DIOGPIO/UART_TX
2532K_XIA

26

32K_XOA
2P0_0

DIO

3

P0_4DIO
4P0_2

DIO

5

P0_1DIO
6P4_0

DIO

7

P4_1DIOINPUT/OUTPUT with selectable pull up/down resistor. General purpose I/O port bit or alternate function nodes. Contain state retention mechanism during power down.
8P4_2

DIO

9

P4_3DIO
10P0_6

DIO

14

P5_0DIO
15P1_0

DIO

16

P1_1DIO
18P3_2

DIO

19

P2_3DIO/AINGPIO/ADCIN3
22P2_4DIO/AIN

GPIO/ADCIN4

23

P2_5DIO/AIN

GPIO/ADCIN5

Note: GPIO has integrated pull-up and pull-down resistors.
Support GPIO super multiplexing function, WAKE_UP / UART / SPI / IIC / PWM / and other functions can be arbitrarily configured on GPIO.
For more GPIO function configuration questions, contact to Pairlink.
As shown in the following table: GPIO Pin detailed Information.

Rabbit-B Rabbit-C Rabbit-SGPIO IndexADCHardware Default Pull setting(100K) Reset stateRom Code SettingPull resistorBootcode
Default
Wakeup
Function
Dryier
current
0GPIO _0Pull DownPull Down10K;100KYes8mA
0_1GPIO _1Pull DownPull Down10K;100KYes8mA
0_2GPIO _2Pull DownPull Down10K;100KYes8mA
0_3GPIO _3Pull UpOutput High10K;100KLOG UART TXYes8mA
4GPIO _4Pull DownPull Down10K;100KYes8mA
0_5GPIO _5Pull DownPull Down10K;100KYes8mA
6GPIO _6Pull DownPull Down10K;100K8mA
1_0GPIO _8Pull UpPull Up10K:100KSWDIOYes8mA
11GPIO _9Pull UpPull Up10K;100KSWDCLKYes8mA
5_0GPIO 25Pull DownPull Down5Ki5OKYes8mA
k XIGPIO 26Pull DownPull Down10K;100KYes8mA
k_XOGPIO 27Pull DownOutput Low10K;100KYes8mA
22GPIO 18ADCILPC (channel 2) Differetialt+Pull DownPull Down5K;50KYes8mA
23GPIO 19ADCAPC{channel 33
Differetia11-
Pull DownPull Down5K;50KYes8mA
24GPIO 20AD CAPC(channel 4)
Differetia2+
Pull DownPull Down51((50KYes8mA
2_5GPIO 21ADC/LPC(channel 5)
Differetiat 2-
Pull DownPull Down5K;50KYes8mA
2_6GPIO 22ADC(channeI 6)
Differetiat3+
Pull DownPull Down5K;50KYes8mA
27GPIO 23ADC(channel7)
Elaeetal3-
Pull DownPull Down51(50KYes8mA
3_0GPIO 24Pull UpPull Up10K;100KUART TXYes8mA
3_1GPIO 25Pull UpPull Up101(100KUART RXYes8mA
3_2GPIO 26Pull DownPull Down10K;100KYes8mA
33GPIO 27Pull DownPull Down101(100KYes8mA
4_0GPIO 28Pull DownPull Down10K;100KYes8mA
4_1GPIO 29Pull DownPull Down101(100KYes8mA
4_2GPIO 30Pull DownPull Down101(100KYes8mA
43GPIO 31Pull UpPull Up101(100KYes8mA
Appearance and Dimensions

Figure 1 shows the size of the module.The components and prominent structure are not allowed put in this size range(20.5mm*14.0mm*2.6mm).

The following land pattern size is recommended for user board design. However, user can modify it according PCB soldering conditions. Sufficient examination is necessary if use the modified land pattern.

Figure 1: Mechanical Information
Mechanical Information
Mechanical Information

Module Layout Guideline

The layout on user PCB should be designed according to the following guideline. When the module is placed on the PCB, it must be ensured that the RF antenna area (2 times the width of the module) is hollow or suspended, and there must be no traces, vias or copper.
Module Layout
Figure 2: Module Placement

Welding Declaration

The Rabbit-C module only supports one reflow soldering. Our company is not responsible for the module failure caused by multiple reflow soldering.

Figure 3: Reflow Soldering Temperature

Profile FeatureSn-Pb AssemblyPb-Free Assembly
Solder PasteSn63/Pb37Sn96.5/Ag3/Cu0.5
Preheat Temperature min ( Tsmin )100°C150°C
Preheat temperature max (Tsmax)150°C200°C
Preheat Time (Tsmin to Tsmax)(ts)60-120 sec60-120 sec
Average ramp-up rate(Tsmax to Tp)3°C/second max3°C/second max
Liquidous Temperature (TL)183°C217°C
Time ( tL ) Maintained Above ( TL )60-90 sec30-90 sec
Peak temperature ( Tp )220-235°C230-250°C
Aveage ramp-down rate ( Tp to Tsmax )6°C/second max6°C/second max
Time 25°C to peak temperature6 minutes max8 minutes max

Soldering Curve
Figure 4: Reflow Soldering Curve

FCC Interference Statement

Federal Communications Commission (FCC) Interference Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generate, 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 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.

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 Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.

RF exposure warning

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.

This product may not be collocated or operated in conjunction with any other antenna or transmitter.

Industry Canada (IC)

CAN ICES-003 (B)/NMB-003(B)

This device complies with Industry Canada’s licence-exempt RSSs. 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.

IMPORTANT NOTE
Radiation Exposure Statement
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.

OEM Integration Instructions

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

The module can be used to installation in other host. The transmitter module may not be co-located with any other transmit or antenna. The module shall be only used with the integral antenna(s) that has been originally tested and certified with this module. As long as 3 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirement with this module installed (for example, digital device emission, PC peripheral requirements, etc.). OEM integrator is responsible for ensuring the end-user has no manual  instruction to remove or install module.

IMPORTANT NOTE

In the event that these conditions cannot be met (for example certain laptop configuration or co-location with another transmitter), then the FCC authorization for this module in combination with the host equipment is no longer considered valid and the FCC ID of the module cannot be used on the final product. In these and circumstance, the OEM integrator will be responsible for re-evaluating. The end product (including the transmitter) and obtaining a separate FCC authorization. The final end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID: 2AQV6RABBIT”.

Antenna Specification

Antenna TypeManufacturerFrequency Range (MHz)Maximum Peak Antenna Gain(dBi)
Dipole AntennaN/A2402 – 24800.30

This Module (IC: 24210-RABBIT) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

The Host Marketing Name (HMN) must be displayed (according to e-labelling requirements) or indicated at any location on the exterior of the host product or product packaging or product literature, which shall be available with the host product or online.

The host product shall be properly labelled to identify the modules within the host product.

The Innovation, Science and Economic Development Canada certification label of a module shall be clearly visible at all times when installed in the host product; otherwise, the host product must be labelled to display the Innovation, Science and Economic

Development Canada certification number for the module, preceded by the word “Contains” or similar wording expressing the same meaning, as follows:
Contains IC: 24210-RABBIT

All rights reserved
Suzhou Pairlink Network Technology Ltd.

www.pairlink.com.cn

Pairlink logo

 

Documents / Resources

Pairlink Rabbit-C Bluetooth 5 BLE Module [pdf] User Guide
RABBIT, 2AQV6RABBIT, Rabbit-C Bluetooth 5 BLE Module, Bluetooth 5 BLE Module

References

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