Description L7581/8581 provides solid-state access power ringing

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Description L7581/8581 provides solid-state access power ringing

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L7581/2/3 L8581 Ringing, Tip/Ring, Line Card Access Switches
Description
L7581/8581 provides solid-state access power ringing applications. L7582 provides access power ringing line test. L7583 line card access switch (LCAS) provides power ringing, line test, self-test access. Incorporated into L758xA diode bridge/SCR clamping circuit, current-limiting circuitry, thermal shutdown mechanism. L758xB provides diode bridge clamping circuit, current-limiting circuitry, thermal shutdown mechanism. single external protection device required. Agere Systems Inc. available characterized protection devices designed work with Agere LCAS devices (contact Agere account representative information about these products). Agere LCAS devices require supply operate. Additionally, battery monitor circuit included, which forces all-off state battery lost. L7581 device packaged 16-pin, plastic package (L7581AC/BC) 16-pin, plastic package (L7581AAE/BAE). These devices compatible with L7541 device. L7582 device packaged 16-pin, plastic package (L7582AC/BC) 16-pin, plastic package (L7582AAE/BAE). L7582AAE/BAE compatible with L7542AAE/BAE. L7583A/B/C/D device packaged 24-pin, plastic (L7583AF/BF/CF/DF) 28-pin, plastic package (L7583AAJ/BAJ/CAJ/DAJ).
Small size/surface-mount packaging Monolithic reliability impulse noise Make-before-break, break-before-make operation Clean, bounce-free switching Low, matched resistance Built-in current limiting, thermal shutdown, SLIC protection only operation, very power consumption Battery monitor, state upon loss battery Latched logic level inputs, drive circuitry Only external protector required
Applications
Central office DAML HFC/FITL
L7581/2/3 L8581 Ringing, Tip/Ring, Line Card Access Switches
Application
VBAT (REFERENCE) RINGING TEST RETURN
TEST
RINGING RETURN BREAK
TEST
CROWBAR PROTECTION
TRIP
BATTERY FEED
BREAK RING SW10 TEST RINGING ACCESS RINGING TEST TEST RING
RING GENERATOR BATTERY
12-2366d
additional information, contact your Agere Systems Account Manager following: INTERNET: http://www.agere.com E-MAIL: docmaster@agere.com AMERICA: Agere Systems Inc., Union Boulevard, Room 30L-15P-BA, Allentown, 18109-3286 1-800-372-2447, 610-712-4106 CANADA: 1-800-553-2448, 610-712-4106) ASIA: Agere Systems Hong Kong Ltd., Suites 3201 3210-12, 32/F, Tower Gateway, Harbour City, Kowloon Tel. (852) 3129-2000, (852) 3129-2020 CHINA: (86) 21-5047-1212 (Shanghai), (86) 10-6522-5566 (Beijing), (86) 755-695-7224 (Shenzhen) JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 6778-8833, TAIWAN: (886) 2-2725-5858 (Taipei) EUROPE: Tel. (44) 7000 624624, (44) 1344
Agere Systems Inc. reserves right make changes product(s) information contained herein without notice. liability assumed result their application.
Copyright 2002 Agere Systems Inc. Rights Reserved
June 2000 PB00-074ALC (Replaces PN98-107ALC, PN98-108ALC, PN99-008ALC)

Description L7581/8581 provides solid-state access power ringing

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