欢迎访问ic37.com |
会员登录 免费注册
发布采购

ATTL7554BP 参数 Datasheet PDF下载

ATTL7554BP图片预览
型号: ATTL7554BP
PDF下载: 下载PDF文件 查看货源
内容描述: L7554低功耗SLIC [L7554 Low-Power SLIC]
分类和应用:
文件页数/大小: 28 页 / 463 K
品牌: AGERE [ AGERE SYSTEMS ]
 浏览型号ATTL7554BP的Datasheet PDF文件第2页浏览型号ATTL7554BP的Datasheet PDF文件第3页浏览型号ATTL7554BP的Datasheet PDF文件第4页浏览型号ATTL7554BP的Datasheet PDF文件第5页浏览型号ATTL7554BP的Datasheet PDF文件第6页浏览型号ATTL7554BP的Datasheet PDF文件第7页浏览型号ATTL7554BP的Datasheet PDF文件第8页浏览型号ATTL7554BP的Datasheet PDF文件第9页  
Data Sheet
March 1997
L7554 Low-Power SLIC
Features
s
Description
This electronic subscriber loop interface circuit
(SLIC) is optimized for low-power consumption while
providing an extensive set of features.
Quiet polarity reversal is possible because the ac
path is uninterrupted during transition.
The L7554 includes the ground start state and a
summing node for meter pulse injection to 2.2 Vrms.
A spare, uncommitted op amp is included for meter
pulse filtering.
The device is being offered in two versions, based
upon maximum battery. The L7554AP is guaranteed
to –60 V, and the L7554BP is guaranteed to –72 V.
The device is available in a 44-pin PLCC package. It
is built by using a 90 V complementary bipolar
(CBIC) process.
Low active power (typical 165 mW during on-hook
transmission)
Sleep state for low idle power (76 mW)
Quiet Tip/Ring polarity reversal
Supports meter pulse injection
Spare op amp for meter pulse filtering
–24 V to –72 V power supply operation
Distortion-free on-hook transmission
Convenient operating states:
— Forward powerup
— Polarity reversal powerup
— Forward low-power scan
— Polarity reversal low-power scan
— Ground start
— Disconnect (high impedance)
Adjustable supervision functions:
— Off-hook detector with longitudinal rejection
— Ground key detector
— Ring trip detector
Independent, adjustable, dc and ac parameters:
— dc feed resistance
— Loop current limit
— Termination impedance
Thermal protection
s
s
s
s
s
s
s
s
s
s