User's Manual

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Bluetooth Module’s Manual

1. Introduction

Thank you for using the Bluetooth module product provided. This product is

Bluetooth 5.0 products, including embedded UART interface optimized for low-power

applications

Before use, please read this user manual carefully. Please follow the technical

specifications when using the module in your design and develop activity. Timex

Group USA Inc. has the right to change the contents of this manual in accordance

with the needs of the technical development.

2. Hardware Architecture

a. Main Chipset Information

Item

Vendor

Part Number

Bluetooth 5.0

mac/baseband/radio

NORDIC

NRF52840

3. Operational Description

It is mounted in the watch communication controller for using a wireless device user

the Bluetooth devices that act.

Frequency Use the 2402MHz ~ 2480MHz band and channel interval is 2 MHz.

a. Time base of the RF frequency

ZERO IF intermediate frequency using the method and the reference frequency is

external 32MHz crystal.

b. Synthesizer

Transceiver size is relatively fresh inside the internal voltage controlled oscillator

(VCO) and the PLL system to respond to a wide adjustment range.

c. Transmission

Baseband processing GFSK modulation, Data transfer speed is 1Mbps.

By the DAC in the BBP IC TX IQ signal is input through the modulation process and

a TX carrier frequency

The amplifier stage shelter will be sent.

Summary of content (5 pages)

PAGE 1
Bluetooth Module’s Manual 1. Introduction Thank you for using the Bluetooth module product provided. This product is Bluetooth 5.0 products, including embedded UART interface optimized for low-power applications Before use, please read this user manual carefully. Please follow the technical specifications when using the module in your design and develop activity. Timex Group USA Inc. has the right to change the contents of this manual in accordance with the needs of the technical development. 2.
PAGE 2
d. Reception This transceiver IC is isolated to prevent unwanted noisy radiation by internal amplifier noise LOW month And the RF signal is through the intermediate frequency conversion and demodulation, and a RX IQ signal via a low-pass filter The input to baseband Processing. e. Product Spec.
PAGE 3
4. Detailed specification Transmission frequency: 2402 ~ 2480 MHz Number of channels: 40 channels Operating Voltage: DC 3.7 V Size: 30 mm X 35 mm X 0.
PAGE 4
5. Instruction to OEM This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. This device is verified to comply with part 15 of the FCC Rules for use with cable television service. This device complies with part 15 of the FCC Rules.
PAGE 5
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. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.