2010-2012 Microchip Technology Inc.
DS39977F-page 195
PIC18F66K80 FAMILY
12.0
DATA SIGNAL MODULATOR
The Data Signal Modulator (DSM) is a peripheral which
allows the user to mix a data stream, also known as a
modulator signal, with a carrier signal to produce a
modulated output.
Both the carrier and the modulator signals are supplied
to the DSM module, either internally from the output of
a peripheral, or externally through an input pin.
The modulated output signal is generated by perform-
ing a logical “AND” operation of both the carrier and
modulator signals and then it is provided to the MDOUT
pin.
The carrier signal is comprised of two distinct and sepa-
rate signals: a carrier high (CARH) signal and a carrier
low (CARL) signal. During the time in which the modula-
tor (MOD) signal is in a logic high state, the DSM mixes
the carrier high signal with the modulator signal. When
the modulator signal is in a logic low state, the DSM
mixes the carrier low signal with the modulator signal.
Using this method, the DSM can generate the following
types of key modulation schemes:
Frequency-Shift Keying (FSK)
Phase-Shift Keying (PSK)
On-Off Keying (OOK)
Additionally, the following features are provided within
the DSM module:
Carrier Synchronization
Carrier Source Polarity Select
Carrier Source Pin Disable
Programmable Modulator Data
Modulator Source Pin Disable
Modulated Output Polarity Select
Slew Rate Control
Figure 12-1 shows a simplified block diagram of the
Data Signal Modulator peripheral.
Note:
The Data Signal Modulator is only available
on 64-pin devices (PIC18F6XK80).
相关PDF资料
PIC16C55-RC/P IC MCU OTP 512X12 28DIP
SFW23R-2STE1 SFW23R-2STE1-FFC/FPC CONN
PIC24FJ64GA002-E/SS IC PIC MCU FLASH 64K 28-SSOP
PIC18LF46K22-I/ML IC PIC MCU 64KB FLASH 44QFN
PIC18F45K80-I/ML MCU PIC 32KB FLASH 44QFN
PIC24F32KA302-I/ML MCU 32KB FLASH 2KB RAM 28-QFN
PIC18LF45K80-I/ML MCU PIC ECAN 32KBFLASH 44QFN
PIC18F4221-I/PT IC PIC MCU FLASH 2KX16 44TQFP
相关代理商/技术参数
PIC18F26K80-I/SO 功能描述:8位微控制器 -MCU 64KB FL 4KBRM 16MIPS 12bit ADC CTMU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F26K80-I/SP 功能描述:8位微控制器 -MCU 64KB FL 4KBRM 16MIPS 12bit ADC CTMU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F26K80-I/SS 功能描述:8位微控制器 -MCU 64KB FL 4KBRM 16MIPS 12bit ADC CTMU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F26K80T-I/ML 功能描述:8位微控制器 -MCU 64KB FL 4KBRM 16MIPS 12bit ADC CTMU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F26K80T-I/MM 功能描述:8位微控制器 -MCU ECAN 64KB FL 4KBRM 16 MIPS 12b ADC CTMU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F26K80T-I/SO 功能描述:8位微控制器 -MCU 64KB FL 4KBRM 16MIPS 12bit ADC CTMU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F26K80T-I/SS 功能描述:8位微控制器 -MCU 64KB FL 4KBRM 16MIPS 12bit ADC CTMU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F27J13-I/ML 功能描述:8位微控制器 -MCU 128KB Flash 4KB RAM 12MIPS nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT