參數(shù)資料
型號： MC68HC705F8FU
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 1.8 MHz, MICROCONTROLLER, PQFP64
封裝： QFP-64
文件頁數(shù)： 107/126頁
文件大小： 736K
代理商： MC68HC705F8FU
MC68HC05F8
MOTOROLA
9-1
DTMF/MELODY GENERATOR
9
DTMF/MELODY GENERATOR
The DTMF/Melody Generator (DMG) is a multi-function tone generator built into the
MC68HC05F8 MCU, supporting DTMF dialling, melody-on-hold, and pacier tone functions. The
associated output pins are TONEOUT and TONEX.
9.1
Features
4 row and 4 column frequencies for DTMF dialling
24 row and 24 column frequencies for dual tone melody
28 frequencies for pacier tone to acknowledge button pressed for pulse dialling
Power saving mechanism for no tone condition
3.579MHz
÷ 2 operation
6-bit D/A converter and 28 time steps for sine wave generation
Sine wave or square wave selectable output for melody or DTMF
Single or dual tone capability for melody or DTMF
9.2
General Operation
In Figure 9-1, the DMG consists of a row tone and a column tone generation path. The tone
frequency of each path is controlled by their respective frequency control registers; Row
Frequency Control register (FCR) and Column Frequency Control register (FCC). At the
TONEOUT output, single/dual sine/square wave tones of DTMF and melody frequencies are
possible, whereas at the TONEX output, only single square wave tones are possible.
To generate a sine wave tone with programmable frequency in a path, the internal clock (i.e. the
3.58MHz
÷ 2) is rst divided by a frequency divider, whose value is set by the frequency control
register (FCR or FCC). The output of the divider is a periodic pulse train whose frequency is the
TPG
79
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705G1B 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705J1A 制造商:Freescale Semiconductor 功能描述:
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MC68HC705J1ACP 功能描述:IC MCU 4MHZ 1.2K OTP 20-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND
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