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Introduction
XL4463-SMT wireless module is used the Si4463 version of B1 Silicon Labs chip to design, low power wireless transceiver module has the advantages of small volume of a complete,. Si4463 is a 433MHz transceiver and low current high performance, is a member of the EZRadioPRO series, including a transmitter and a receiver complete. The highest sensitivity is -126dBm, the maximum output power of +20dBm, support (G) FSK, 4 (G) FSK, (G) MSK, OOK and ASK modulation, data rate is in the range of 100bps~1Mbps, voltage 1.8V~3.6V, current 30nA shutdown, standby current 50nA. Better phase noise Si4463 with narrow band and licensed band application, with blocking and choose properties, for example, wireless MBus FCC Part90 and 169MHz. Adjacent channel selectivity with 12.5kHz channel spacing of 60dB, to ensure that in the harsh RF conditions of reliable operation, which is especially important for narrow band operation. Si4463 provides output power of excellence (up to +20dBm) and excellent efficiency of TX. It is high output power and sensitivity, and in the industry leading 146 DB link, expanding the scope of the communication link and reliability. The maximum power setting conditions, open communication distance up to 2000 kilometers. The module integrates all RF related function and the device, the user does not need to understand the relevant knowledge of radio, you can use the module easily develop a stable and reliable performance of wireless related products.

Characteristic

Explain
1, Frequency range: 410-440M (antenna matching optimum range, and the free ISM band)
2, Sensitivity: up to -126dBm (0.5Kbps)
3 The maximum output power of wireless transmission: 20dBm (1.2Kbps, 433M)
4, Data transmission rate: 0.1-1Mbps
5,Modulation mode: FSK, GFSK, 4GFSK and OOK
6, Power: 1.8-3.6 V
7, Ultra-low power consumption in power down mode for 30nA (4.21ms), in the standby mode 50nA
The receiving current 10/13mA, the maximum emission current 85mA.
8, Digital received signal strength indicator (RSSI)
9, Timing wake-up function, wireless wake-up function (WUT)
10, Automatic antenna matching and two-way switch control
11, Configurable data packet structure
12, Preamble detection
13, 64 bytes to send and receive data register (FIFO)
14, Detection of integrated low battery
15, Temperature sensor chip, and 8 bit analog to digital converter
16, the working temperature range: -40 ~ +80 ° C (temperature characteristics and product consistency is much better!)
17, Integrated voltage regulator
18, Wake up quickly and frequency hopping function
19,Power on reset function
20, Built-in crystal error adjustment function
21, Chip automatic calculation and verification of CRC-16, and supports three kinds of 16 bit CRC polynomial

Note
1, around the antenna must be open, away from the battery, metal and so on, around the antenna PCB prohibits copper, when necessary, PCB and antenna overlap to hollow out or punch.
2, when the design of the product is placed in the metal shell, metal cabinet, must use the signals from the antenna feeder antenna out external SMA antenna or chuck antenna, otherwise the signal is the metal shield and the distance reduced, requirements of distance, using high gain antenna.
3, the power supply design. Power supply is the heart of the whole system, design should focus on the. Si4432 wireless module recommended working voltage of 3.3V, the transient current can provide more than 200mA.
4, using DCDC, LDO buck, but also consider the ripple and the impact of surge current. In the access module power supply ripple can be used in place of the LC network processing; surge current can be connected with a large capacitor processing.
5, if the battery power supply, should consider the transient current of the battery is sufficient, recommend the use of lithium battery Ni MH battery is not recommended for dry battery.
6, software design, should try to use packet communication, communication setting rate is low, the farther the distance.
7, when the communication rate communication using the program of DEMO, calculating tool parameters, recalculate the communication parameters. And according to their own requirements for product communication, appropriate adjustments.
8, do the batch production of the product, such as considering testability, maintainability, substitutability, should try to use DIP interface module of the company. Such as small volume with the stamp hole interface module