Rf Transmitter Features; General Description - Holtek BC68F2130 Manual

RF Transmitter Features

• Complete ultra high frequency OOK/FSK transmitter with low transmission phase noise
• Supports 315/433/868/915MHz frequency bands
• Programmable channel setting with < 2kHz resolution
• OOK symbol rates 0.5Ksps~25Ksps, FSK data rates 0.5Kbps~100Kbps
• Output power up to +13dBm (software controlled output power: 0, +10dBm, +13dBm)
• RF external crystal: 16MHz

General Description

These Sub-1GHz RF Transmitter MCUs provide a combination of a fully featured MCU and an RF
transmitter function, providing them with superior flexibility for use in a wide range of wireless I/O
control applications such as industrial control, consumer products, subsystem controllers, etc.
Offering users the convenience of Flash Memory multi-programming features, the devices also
include a wide range of functions and features. Other memory includes an area of RAM Data
Memory for storage of non-volatile data such as serial numbers, calibration data etc. By using
Holtek's In Application Programming technology, users have a convenient means to directly store
their measured data in the Flash Program Memory as well as having the ability to easily update their
application programs.
Multiple and extremely flexible Timer Modules provide timing, pulse generation and PWM
generation functions. Protective features such as an internal Watchdog Timer, Low Voltage Reset
and Low Voltage Detector coupled with excellent noise immunity and ESD protection ensure that
reliable operation is maintained in hostile electrical environments.
A full choice of external, internal high and low oscillators is provided including two fully integrated
system oscillators which require no external components for their implementation. The ability to
operate and switch dynamically between a range of operating modes using different clock sources
gives users the ability to optimise the conflicting demands of microcontroller performance and
power consumption.
The integrated RF transmitter can operate at the 315MHz, 433MHz, 868MHz and 915MHz
frequency bands. The additional of a crystal and a limited number of external components is all that
is required to create a complete and versatile RF transmitter system. The devices include an internal
power amplifier and are capable of delivering +13dBm (Max.) into a 50Ω load. Such a power level
enables a small form factor transmitter to operate near the maximum transmission regulation limits.
The devices can operate with OOK – On-Off Keying and FSK – Frequency Shift Keying receiver
types. The FSK data rate is up to 100Kbps, allowing the devices to support more complicated
control protocols.
The inclusion of flexible I/O programming features, Time-Base functions along with many other
features ensure that the devices will be highly capable of providing cost effective MCU Sub-1GHz
RF transmitter solutions for remote wireless applications.
Rev. 1.50
BC68F2130/BC68F2140/BC68F2150
Sub-1GHz RF Transmitter Flash MCU with OCDS
6 January, 22, 2021