IDT821621中文資料IDT數(shù)據(jù)手冊PDF規(guī)格書
IDT821621規(guī)格書詳情
DESCRIPTION
The IDT821621 is a long haul Subscriber Line Interface Circuit. It implements the basic telephone line interface functions such as battery feeding, impedance matching, off-hook detection and ring-trip detection.
The IDT821621 allows battery feeding between ?19 V and ?58 V and has the capability for driving long loops. The architecture of operating the SLIC in different states according to different loop states minimizes the system power dissipation.
This long haul SLIC is pin-to-pin compatible with AMD7920. It provides a cost-effective solution for PBX and Central Office applications.
FEATURES
◆ SLIC operating states: Active, Ringing, Standby and Disconnect
◆ Low standby power consumption (35 mW)
◆ ?19 V to ?58 V battery operation
◆ On-hook transmission
◆ Two-wire impedance set by single external impedance
◆ Programmable constant-current feed
◆ Programmable loop-detect threshold
◆ Programmable ring-trip detect threshold
◆ +3.3 V / +5 V compatible power supply
◆ No ?5 V supply required
◆ On-chip Thermal Management (TMG)
◆ Four on-chip relay drivers and relay snubbers, 1 ringing and 3 general purpose
◆ Package available: 32 pin PLCC
產(chǎn)品屬性
- 型號:
IDT821621
- 制造商:
IDT
- 制造商全稱:
Integrated Device Technology
- 功能描述:
LONG HAUL SLIC
供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
IDT |
14+ |
1218 |
全新進口原裝 |
詢價 | |||
IDT |
24+ |
SOT-223 |
58000 |
全新原廠原裝正品現(xiàn)貨,可提供技術(shù)支持、樣品免費! |
詢價 | ||
IDT |
23+ |
NA/ |
640 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
IDT |
23+ |
原裝正品現(xiàn)貨 |
10000 |
PLCC32 |
詢價 | ||
IDT |
24+ |
原裝正品 |
4000 |
原裝現(xiàn)貨假一罰十 |
詢價 | ||
IDT |
24+ |
BGA |
265 |
大批量供應優(yōu)勢庫存熱賣 |
詢價 | ||
IDT |
24+ |
PLCC32 |
2800 |
原裝現(xiàn)貨!可長期供貨! |
詢價 | ||
IDT |
23+ |
PLCC-32 |
10000 |
原廠授權(quán)一級代理,專業(yè)海外優(yōu)勢訂貨,價格優(yōu)勢、品種 |
詢價 | ||
IDT |
2020+ |
PLCC-32 |
640 |
百分百原裝正品 真實公司現(xiàn)貨庫存 本公司只做原裝 可 |
詢價 | ||
IDT |
24+ |
SMD |
20000 |
一級代理原裝現(xiàn)貨假一罰十 |
詢價 |