Rabbit-S User Guide
Project: Rabbit/Bluetooth 5 BLE module
Module name: Rabbit-S
Designed: Suzhou Pair link Network Technology Ltd.
| Version | Note | Date |
| V1.0 | Create | 2021/06/30 |
| V2.0 | Modify Confidential Information | 9/1/2021 |
This document contains information that is proprietary to the Pair link. 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. Pair link reserves the right to change information at any time without notification.
Main Application Domain
- MCU data pass-through.
- Bluetooth Printer / Scanner / Digital price tag etc.
- Remote control / Keyboard and Mouse / Toys / Smart phone self timer etc.
- Industrial remote control / Industrial telemetry / Industrial data collection.
- Smart home / Intelligent lighting / Intelligent access control system.
Electrical Specifications
Absolute Ratings
|
Parameter |
Specification |
Unit |
|
|
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 | +3.5KV | Human Body Model |
| ESD CDM | -500V | +500V | Charged-Device Model |
Recommended Operating Conditions
|
Parameter |
Specification |
Note |
|||
|
Min. |
Typical |
Max |
|||
| Power Supply(V) | 3.3 | 3.6 | |||
| Communication level(V) | 3.3 | Can’t communicate with 5V TTL level directly | |||
| Working temperature(℃) | 20 | +85 | Industry Standard | ||
| Consume | TX Current (mA) | 10.2 | TX Power=+4dBm | ||
| 12.7 | TX Power=+8dBm | ||||
| RX Current (mA) | 6.8 | VBAT=3V3,1Mbps | |||
| Sleep Current (a) | 3.8 | Deep-sleep,Supports GPIO wake-up and timer wake-up | |||
| TX Power(dBm) | +8 | ||||
| Receive Sensitivity(dBm) | -97 | 1Mbps | |||
Digital I/O Characteristic
| Characteristics | Condition | Symbol | Specification | Unit | ||
| Min. | Typical | Max. | ||||
| Input Low Voltage | VBAT=3V3 | VIL | – | 0 | 0.9 | V |
| Input High Voltage | VIA | 2.0 | 3.3 | 3.6 | V | |
| Output Low Voltage | VOL | 0 | – | 0.33 | V | |
| Output High Voltage | VEOH | 2.97 | – | 3.3 | V | |
Physical Parameters
| Parameter | Performance | Note |
| CommunicationDistance | 50M | Data Transfer (BLE) Environment: Sunny and open Airspeed: 1Mbps |
| Crystal | 40MHz | Industry Standard |
| Protocol | BLE 5 | Supported data rates: 1Mbps,2Mbps |
| Package | Patch | Refer to section 3.3 |
| IC | RTL8762CMF | Packaging: QFN-40 |
| Core | ARM Cortex-M4 | |
| RAM | 160KByte | |
| Flash | 4Mbits | Embedded SOC memory |
| Dimensions | 17.8mm*12.0mm*1.9mm | L*W*H |
| RF Interface | PCB Antenna |
Hardware Design and PCB layout
The pin assignment and Pin description
Rabbit-S Pin definition can refer to Figure 1.
Table 1: Module Pin Description
| Pin Number | Pin Name | I/O | Alternate Function Description |
| 10 | VBA | P | Power Supply(DC1.8V~3.6V). |
| 1,2,16,22,25 | GND | P | Connect to Ground. |
| 11 | RESET | DI | Reset signal (active high). |
| 13 | LOG_OUT | DIO | Log_out, not intended for customer use. |
| 18 | P3_1 | DIO | GPIO/UART_RX |
| 19 | P3_0 | DIO | GPIO/UART_TX |
| 23 | 32K_XI | A | |
| 24 | 32K_XO | A | |
| 3 | P0_4 | DIO | INPUT/OUTPUT with selectable pulls up/down resistor.
General-purpose I/O port bit or alternate function nodes. Contain state retention mechanism during power down. |
| 4 | P0_2 | DIO | |
| 5 | P0_1 | DIO | |
| 6 | P4_0 | DIO | |
| 7 | P4_1 | DIO | |
| 8 | P4_2 | DIO | |
| 9 | P4_3 | DIO | |
| 12 | P5_0 | DIO | |
| 14 | P1_0 | DIO | |
| 15 | P1_1 | DIO | |
| 17 | P2_3 | DIO/AIN | GPIO/ADCIN3 |
| 20 | P2_4 | DIO/AIN | GPIO/ADCIN4 |
| 21 | P2_5 | DIO/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 Pair link.
As shown in the following table: GPIO Pin detailed Information.
| Rabbit-B Rabbit-C Rabbit-S |
GPIO Index | ADC | Hardware Default Pull setting(100K) Reset state |
Rom Code Setting | Pull resistor | Boot code Default |
Wakeup Function |
Dreier current |
| P0 -0 | GPIO _0 | Pull Down | Pull Down | 10K/1O0K | Yes | 8mA | ||
| P0 -1 | GPIO _1 | Pull Down | Pull Down | 10/1000K | Yes | 8mA | ||
| P0_2 | GPIO _2 | Pull Down | Pull Down | 10K/1OOK | Yes | 8mA | ||
| P0_3 | GPIO_3 | Pull Up | Output High | 10K/1OOK | LOG_UART_TX | Yes | 8mA | |
| P0_4 | GPIO _4 | Pull Down | Pull Down | 10K/100K | Yes | 8mA | ||
| P0_5 | GPIO_5 | Pull Down | Pull Down | 10K/100K | Yes | 8mA | ||
| P0_6 | GPIO _6 | Pull Down | Pull Down | 101K/100K | Yes | 8mA | ||
| P1_0 | GPIO_8 | Pull Up | Pull Up | 101K/1OOK | STUDIO | Yes | 8mA | |
| P1_1 | GPIO_9 | Pull Up | Pull Up | 10K/1OOK | SWDCLK | Yes | 8mA | |
| P5-0 | GPIO 25 | Pull Down | Pull Down | 51K/50K | Yes | 8mA | ||
| 32k- XI | GPIO 26 | Pull Down | Pull Down | 10K/1100K | Yes | 8mA | ||
| 32k- X0 | GPIO 27 | Pull Down | Output Low | 10K/1OOK | Yes | 8mA | ||
| P2- 2 | GPIO 18 | ADCILPC(channel 2) Differential 1+ | Pull Down | Pull Down | 51K/5OK | Yes | 8mA | |
| P2 -3 | GPIO 19 | ADCIPC(channel 3) Differential 2- |
Pull Down | Pull Down | 51K/5OK | Yes | 8mA | |
| P2- 4 | GPIO 20 | AD CILPC(channel 4) Differetiat2+ | Pull Down | Pull Down | 5K/50K | Yes | 8mA | |
| P2- 5 | GPIO 21 | ADCILPC(ctiarrel 5) D ifferetiat2- |
Pull Down | Pull Down | 5K/5OK | Yes | 8mA | |
| P-26 | GPIO 22 | AD C(channel 6) D differential 3+ |
Pull Down | Pull Down | 5 1/5OK | Yes | 8mA | |
| P2_7 | GPIO 23 | ADC(chanm1 7) Differential 3- |
Pull Down | Pull Down | 5K/50K | Yes | 8mA | |
| P3_0 | GPIO 24 | Pull Up | Pull Up | 10K/1OOK | UART TX | Yes | 8mA | |
| P3_1 | GPIO_25 | Pull Up | Pull Up | 10K/1OOK | UART_RX | Yes | 8mA | |
| P3_2 | GPIO 26 | Pull Down | Pull Down | 10K/100K | Yes | 8mA | ||
| P3- 3 | GPIO 27 | Pull Down | Pull Down | 101/100K | Yes | 8mA | ||
| P4_0 | GPIO 28 | Pull Down | Pull Down | 10K/1OOK | Yes | 8mA | ||
| P4_1 | GPIO 29 | Pull Down | Pull Down | 10K/1OOK | Yes | 8mA | ||
| P4_2 | GPIO_30 | Pull Down | Pull Down | 101/100K | Yes | 8mA | ||
| P4_3 | GPIO 31 | Pull Up | Pull Up | 10K/100K | Yes | 8mA |
Appearance and Dimensions
Figure 1 shows the size of the module. The components and prominent structure are not allowed put in this size range(17.8mm*12.0mm*1.9mm).
The following land pattern size is recommended for user board design. However, users can modify it according to PCB soldering conditions. Sufficient examination is necessary if using the modified land pattern.
Figure 1: Mechanical Information
Module Layout Guideline
The layout on the 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.
Figure 2: Module Placement
Welding Declaration
The Rabbit-S 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 Feature | Sn-Pb Assembly | Pb-Free Assembly |
| Solder Paste | Sn63/Pb37 | Sn96.5/Ag3/Cu0.5 |
| Preheat Temperature min i Tasmin ) | 100°C | 150°C |
| Preheat temperature max (Tmax) | 150°C | 200°C |
| Preheat Time (Tasmin to Tsmax)(ts) | 60-120 sec | 60-120 sec |
| Average ramp-up rate(Ts max to Tp) | 3°C/second max | 3°C/second max |
| Liquidous Temperature (TL) | 183°C | 217°C |
| Time ( to ) Maintained Above ITL ‘ | 60-90 sec | 30-90 sec |
| Peak temperature 1 Tp ) | 220-235°C | 230-250°C |
| Average ramp-down rate ( Tp to Tsmax i | 6°C/second max | 6°C/second max |
| Time 25°C to peak temperature | 6 minutes max | 8 minutes max |
Figure 4: Reflow Soldering Curve
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 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 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 license-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 for installation in another host. The transmitter module may not be co-located with any other transmitter 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 the 3 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 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 circumstances, 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-S”.
Antenna Specification:
| Antenna Type | Manufacturer | Frequency Range (MHz) |
Maximum Peak Antenna Gain(dBi) |
| PCB Antenna | N/A | 2402 – 2480 -0.41 | |
IMPORTANT NOTE：
This Module (IC: 24210-RABBITS, PMN: Rabbit Bluetooth 5 BLE module) 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 product shall be properly labeled to identify the modules within the host product. The Innovation, Science, and Economic Development Canada certification label of a
the module shall be clearly visible at all times when installed in the host product; otherwise, the host product must be labeled 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-RABBITS.
Antenna Specification:
| Antenna Type | Manufacturer | Frequency Range (MHz) |
Maximum Peak Antenna Gain(dBi) |
| PCB Antenna | N/A | 2402 – 2480 -0.41 | |
Suzhou Pair link Network Technology Ltd.
Documents / Resources
 |
Pairlink Rabbit-S Bluetooth 5 BLE Module [pdf] User Guide RABBIT-S, RABBITS, 2AQV6RABBIT-S, 2AQV6RABBITS, Rabbit-S Bluetooth 5 BLE Module, Bluetooth 5 BLE Module, 5 BLE Module, BLE Module |
