M491B中文资料PDF规格书
M491B规格书详情
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)
产品属性
- 型号:
M491B
- 制造商:
STMICROELECTRONICS
- 制造商全称:
STMicroelectronics
- 功能描述:
SINGLE CHIP VOLTAGE SYNTHESIS TUNING SYSTEMS WITH 1 ANALOG CONTROL
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ST |
22+ |
DIP-40 |
16900 |
支持样品 原装现货 提供技术支持! |
询价 | ||
3 |
3000 |
公司存货 |
询价 | ||||
ST |
DIP-40 |
36900 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
ST |
16+ |
原厂封装 |
4000 |
原装现货假一罚十 |
询价 | ||
ST/意法 |
23+ |
DIP |
89630 |
当天发货全新原装现货 |
询价 | ||
ST |
23+ |
DIP-40 |
16900 |
正规渠道,只有原装! |
询价 | ||
ST |
22+ |
DIP |
2700 |
全新原装自家现货优势! |
询价 | ||
JRM |
SIP-10P |
13000 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
询价 | |||
一级代理 |
23+ |
N/A |
74000 |
一级代理放心采购 |
询价 | ||
ST |
24+ |
DIP40 |
90000 |
一级代理商进口原装现货、假一罚十价格合理 |
询价 |