LOW VOLTAGE SUBSCRIBER LOOP INTERFACE CIRCUIT

The MC33121 is designed to provide the interface between the 4–wire side of a central office, or PBX, and the 2–wire subscriber line. Interface functions include battery feed, proper loop termination AC impedance, hookswitch detection, adjustable transmit, receive, and transhybrid gains, and singl

文件：570.99 Kbytes 頁數(shù)：32 Pages

MOTOROLA

摩托羅拉

ARCHIVED - Low Voltage Subscriber Loop Interface Circuit (SLIC)

Overview Thin Film Silicon Monolithic Integrated Circuit The MC33121 is designed to provide the interface between the 4–wire side of a central office, or PBX, and the 2–wire subscriber line. Interface functions include battery feed, proper loop termination AC impedance, hookswitch detection, adjusta \n?Transmit, Receive, and Transhybrid Gains Externally Adjustable\n?Return Loss Externally Adjustable\n?Proper Hookswitch Detection With 30 kW Leakage\n?Single/Double Fault Indication With Shutdown for Thermal Protection\n?Critical Sense Resistors Included Internally\n?Standard Power Supplies: – 21.;

恩XP

LOW VOLTAGE SUBSCRIBER LOOP INTERFACE CIRCUIT

The MC33121 is designed to provide the interface between the 4–wire side of a central office, or PBX, and the 2–wire subscriber line. Interface functions include battery feed, proper loop termination AC impedance, hookswitch detection, adjustable transmit, receive, and transhybrid gains, and singl

文件：570.99 Kbytes 頁數(shù)：32 Pages

MOTOROLA

摩托羅拉

LOW VOLTAGE SUBSCRIBER LOOP INTERFACE CIRCUIT

The MC33121 is designed to provide the interface between the 4–wire side of a central office, or PBX, and the 2–wire subscriber line. Interface functions include battery feed, proper loop termination AC impedance, hookswitch detection, adjustable transmit, receive, and transhybrid gains, and singl

文件：570.99 Kbytes 頁數(shù)：32 Pages

MOTOROLA

摩托羅拉