CD22204E中文资料INTERSIL数据手册PDF规格书
CD22204E规格书详情
The CD22204 complete dual tone multiple frequency (DTMF) receiver detects a selectable group of 12 or 16 standard digits. No front-end pre-filtering is needed. The only externally required components are an inexpensive 3.579545MHz TV ‘‘colorburst’’ crystal (for frequency reference) and a bias resistor. Extremely high system density is possible through the use of the Alternate Time Base (ATB) output of a crystal connected CD22204 receiver to drive the time bases of up to 10 additional receivers. This is a monolithic integrated circuit fabricated with low power, complementary symmetry CMOS processing. It only requires a single power supply.
The CD22204 employs state-of-the-art ‘‘switched-capacitor’’ filter technology, resulting in approximately 40 poles of filtering and digital circuitry on the same CMOS chip. The analog input is preprocessed by 60Hz reject and bandsplitting filters and then zero-cross detected to provide AGC. Eight bandpass filters detect the individual tones. Digital processing is used to measure the tone and pause durations and provides the correctly coded and timed digital outputs. The outputs interface directly to standard CMOS circuitry and are three-state enabled to facilitate bus oriented architectures.
特性 Features
• No Front End Band Splitting Filters Required
• Single Low Tolerance 5V Supply
• Three-State Outputs for Microprocessor Based Systems
• Detects all 16 Standard DTMF Digits
• Uses Inexpensive 3.579545MHz Crystal
• Excellent Speech Immunity
• Output in 4-Bit Hexadecimal Code
• Excellent Latch-Up Immunity
产品属性
- 型号:
CD22204E
- 制造商:
INTERSIL
- 制造商全称:
Intersil Corporation
- 功能描述:
5V Low Power Subscriber DTMF Receiver
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
INTERSIL |
22+ |
DIP14 |
20000 |
原装现货,假一罚十 |
询价 | ||
HARRIS |
1738+ |
DIP |
8529 |
科恒伟业!只做原装正品,假一赔十! |
询价 | ||
HARRIS |
23+ |
DIP |
1360 |
全新原装正品现货,支持订货 |
询价 | ||
HARR |
22+ |
DIP |
12245 |
现货,原厂原装假一罚十! |
询价 | ||
H |
24+ |
DIP14 |
3629 |
原装优势!房间现货!欢迎来电! |
询价 | ||
HARRIS |
21+ |
DIP |
1360 |
原装现货假一赔十 |
询价 | ||
INTERSIL |
24+ |
DIP |
4000 |
原装原厂代理 可免费送样品 |
询价 | ||
INTERSIL |
24+ |
DIP-14 |
9600 |
原装现货,优势供应,支持实单! |
询价 | ||
HAR |
22+23+ |
PDIP |
8000 |
新到现货,只做原装进口 |
询价 | ||
INTERSIL |
21+ |
DIP |
1625 |
只做原装正品,不止网上数量,欢迎电话微信查询! |
询价 |