位置:M491B1 > M491B1详情

M491B1中文资料

厂家型号

M491B1

文件大小

135.73Kbytes

页面数量

16

功能描述

SINGLE-CHIP VOLTAGE SYNTHESIS TUNING SYSTEM WITH 1 ANALOG CONTROL

数据手册

下载地址一下载地址二到原厂下载

生产厂商

STMICROELECTRONICS

M491B1数据手册规格书PDF详情

DESCRIPTION

The M491B is a monolithic N-MOS LSI circuit including a Floating-gate Non-Volatile Memory for storage of up to 16 stations. Tuning of the station is performed with a 8192 step D/A converter, using the principle of voltage synthesis. It is designed for 7-segment LED displays. Direct memory selection is possible only from remote control while Up/Down memory scanning is possible on the set and also from remote control. An option input for 8 or 16 stations is available. The circuit also includes a PCM remote control receiver operating in conjunction with the transmitter M708.

■ 16-STATION MEMORY - 7-SEGMENT LED DISPLAY

■ VOLTAGE SYNTHESIZER : 13 BITS

■ 4-BAND PRESET CAPABILITY

■ NON-VOLATILE MEMORY : 304 BITS

- 16 WORDS OF 19 BITS FOR TUNING VOLTAGE (13 bits) - BAND (2 bits) - FINE DETUNING (4 bits)

- 104 MODIFY CYCLES PER WORD

- MIN 10 YEARS DATA RETENTION

■ PCM REMOTE CONTROL RECEIVER : DECODES SIGNAL TRANSMITTED BY M708

■ VOLUME D/A : 6-BIT RESOLUTION / 8kHz

■ MEMORY SKIP FUNCTION

■ AUTOMATIC SEARCH WITH DIGITAL AFT CONTROL

■ FINE DETUNING D/A ACTING ON AFT DISCRIMINATOR (16 steps) WITH SEPARATE STORAGE FOR EACH MEMORY POSITION.

ALTERNATIVELY IT CAN BE USED TO CONTROL BRIGHTNESS OR COLOUR SATURATION

■ MANUAL SEARCH WITH DIGITAL AFT CONTROL

■ MANUAL SEARCH WITH LINEAR AFT

■ SWEEP SEARCH DISPLAY OUTPUT

■ SUPPLY VOLTAGES : VDD = + 5V, VPP = + 25V FOR THE MEMORY

■ CLOCK OSCILLATOR : 445 TO 510kHz

■ INTEGRATED DIGITAL POWER ON RESET

(no external initialization circuitry required)

M491B1产品属性

  • 类型

    描述

  • 型号

    M491B1

  • 制造商

    STMICROELECTRONICS

  • 制造商全称

    STMicroelectronics

  • 功能描述

    SINGLE-CHIP VOLTAGE SYNTHESIS TUNING SYSTEM WITH 1 ANALOG CONTROL

更新时间:2025-10-18 16:00:00
供应商 型号 品牌 批号 封装 库存 备注 价格
24+
DIP40
3000
公司存货
ST
25+
DIP
2700
全新原装自家现货优势!
ST
23+
DIP
16900
正规渠道,只有原装!
ST
25+
DIP
16900
原装,请咨询
ST
2511
DIP
16900
电子元器件采购降本30%!原厂直采,砍掉中间差价
ST
24+
原厂封装
4000
原装现货假一罚十
ST
24+
DIP40
90000
一级代理商进口原装现货、假一罚十价格合理
ST
24+
DIP
36500
原装现货/放心购买
ST/意法
23+
DIP
89630
当天发货全新原装现货
MREL/麦瑞
24+
NA/
4000
原装现货,当天可交货,原型号开票