
User manual WSBTM520A00
Bluetooth 4.0
mac/baseband/radio
1. Introduction
This product is Bluetooth 4.0 products, including embedded UART interface optimized for Mac and
compatible radio / low-power applications
2. Hardware Architecture:
2.1 Main Chipset Information

3. Operational Description
It is mounted in the refrigerator communication controller for using a wireless device user
The Bluetooth devices that act.
Channel based on the 802.15.1 / 1a of the Bluetooth standard IEEE 79 channels and frequency
Use the 2402MHz ~ 2480MHz band and channel interval is 1 MHz.
- Time base of the RF frequency
ZERO IF intermediate frequency using the method and the reference frequency is 26MHz crystal
without Use the Clock.
- Synthesizer
Transceiver size is relatively fresh inside the internal voltage controlled oscillator (VCO) and the PLL
system To respond to a wide adjustment range.
- Transmission
Baseband processing FHSS (frequency hopping spread spectrum run) and (GFSK / DQPSK /
8DPSK) modulation,
Data transfer speed is 1Mbps, 2Mbps (EDR), it will have a 3Mbps (EDR).
It handles the digital data signal to GFSK, 1MHz Data Rate
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.
- 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.
- Product pwr Spec.

- Product Spec.
Output power [TRM/CA/01/C] class1
TX Spurious Emission
30.0MHz to 1.0GHz
1.0GHz to 12.5GHz
1.8GHz to 1.9GHz
5.15GHz to 5.3GHz
TX Output Spectrum_20dB bandwidth
Modulation Characteristics
Receiver sensitivity BER at -70dBm
Maximum Input Level BER at -20dBm
TX output Spectrum Adjacent
Channel Power
Rx Adjacent Channel Rejection at 3MHz
GFSK, 0.1%BER
Pi/4-DQPSK, 0.1%BER
8-DPSK, 0.1%BER
Co Channel Rejection
GFSK, 0.1%BER
Pi/4-DQPSK, 0.1%BER
8-DPSK, 0.1%BER
RX Spurious Emission
30.0MHz to 1.0GHz
1.0GHz to 12.5GHz
1.8GHz to 1.9GHz
5.15GHz to 5.3GHz

4. Detailed specification
- Transmission frequency: 2402 ~ 2480 MHz
- Number of channels: 79ch
- oscillating manner: VCO
- Operating Voltage: DC 3.3 V
- Size: 20 mm X 35 mm X 3.5 mm
- Temperature, humidity range: -20 ℃ ~ + 70 ℃
- Communication system: repeated Shin way
- Modulation: GFSK, pi / 4 DQPSK, 8DPSK
Instruction to OEM
This device complies with Industry Canada’s license-exempt RSSs. Operation is subject to
the following two conditions:
(1) This device may not cause interference and
(2) This device must accept any interference, including interference that may cause undesired
operation of the device.
This application and its antenna must not be co-located or operation in conjunction with any
other antenna or transmitter. A minimum separation distance of 20cm must be maintained
between the antenna and the person for this appliance to satisfy the RF exposure requirements.
Host labeling requirement: “Contains transmitter module
FCC ID: A3LWSBTM520A00
IC ID: 649E-WSBTM520A00”
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.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence. L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.