參數(shù)資料
型號(hào)： L8575
英文描述： Dual-Resistive,Low-Cost Subscriber Line Interface Circuit(SLIC)
中文描述： 雙電阻，低成本用戶線接口電路（SLIC）
文件頁數(shù)： 1/36頁
文件大?。?/td> 633K
代理商： L8575
Advance Data Sheet
March 1997
L8575 Dual-Resistive, Low-Cost
Subscriber Line Interface Circuit (SLIC)
Features
I
Two channels in a single package
I
Serial data interface
I
Per-channel powerdown
I
Low standby power (
≤
65 mW per channel)
I
Integrated protection
I
No external protection device required
I
Battery noise cancellation
I
Switchhook detector
I
Ring-trip detector
I
Switchhook and ring-trip detector self-test
I
Fault detector
I
Zero ring voltage cross detection
I
Three relay drivers per channel
I
44-pin, surface-mount, plastic package (PLCC)
Description
The L8575 is a dual-resistive, low-cost subscriber
line interface circuit (SLIC) that is optimized to meet
both ITU-T recommendations and LSSGR require-
ments for 600
/900
resistive and complex imped-
ance termination applications. It interfaces the low-
voltage circuits on an analog line card to the Tip and
Ring of two subscriber loops. The L8575 does not
supply dc current to the subscriber loops—external
resistors are used for this purpose. The device is built
using a 90 V complementary bipolar (CBIC) process
and is available in a 44-pin PLCC package.
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