LUCL8574DP-D AGERE [Agere Systems], LUCL8574DP-D Datasheet

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October 1998 L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Features Low-power scan mode for low on-hook power dis- sipation (55 mW max) Low active power dissipation; talk or on-hook ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Contents Features ....................................................................................................................................................................1 Description ................................................................................................................................................................1 Architectural Diagram ................................................................................................................................................4 Pin Information ..........................................................................................................................................................4 Absolute Maximum Ratings.......................................................................................................................................6 Electrical Characteristics ...........................................................................................................................................7 Ring Trip Detector ...................................................................................................................................................8 Battery ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Tables Table 1. Pin Descriptions ........................................................................................................................................... 5 Table 2. Operating Conditions and Powering ............................................................................................................ 7 Table 3. Ring ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Architectural Diagram AGND + AX – PROTECT V BF PROTECT FGND Pin Information PRA PRB NSTAT ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Pin Information (continued) Table 1. Pin Descriptions Pin Symbol Type 1 IRCV I Receive Signal Input (+). The ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Pin Information (continued) Table 1. Pin Descriptions (continued) Pin Symbol Type 33 CLIM — BAT2 35 AGND — 36 ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Electrical Characteristics In general, minimum and maximum values are testing requirements. However, some parameters may not be tested ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Electrical Characteristics Ring Trip Detector Table 3. Ring Trip Detector Parameter 1 Ringing Source : Frequency (f) dc Voltage ac Voltage 2 ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Electrical Characteristics Fault Protection Pins PT, PR, and V BF Pins PT, PR, and V are protected by ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Electrical Characteristics Fault Protection (continued) Loss of Power Supplies The L8574 must protect itself from lightning and power cross voltages on Tip ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Electrical Characteristics Fault Protection (continued) Loss of Power Supplies (continued) Table 7. Analog Signal Pins Parameter PT and ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Electrical Characteristics Fault Protection (continued) Loss of Power Supplies (continued) Table 7. Analog Signal Pins (continued) Parameter RCVN: Input Voltage Range Input ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Electrical Characteristics Transmission Characteristics Transmit direction is Tip/Ring to XMT. Receive direction is IRCV/RCVN to Tip/Ring. Table 8. ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Electrical Characteristics Data Interface and Logic Table 9. Logic Inputs (CE, CS, and B0—B3) and Output NSTAT 1 Parameter High-level Input Voltage ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Electrical Characteristics Switch Characteristics Table 12. Battery Switch (SW1) and Ring Break Switch (SW2) Parameter 1 Off-state : ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Electrical Characteristics Switch Characteristics (continued LIMIT R ON –V max –1.5 V +1 –I LIMIT ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Operating States (continued) Disconnect State Forward disconnect state. The receive transmission path is powered down; the transmit path ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Operating States (continued) Intermediate Talk State Talk state with an increased and current-limited out- put impedance. Same as talk state. The current ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Applications (continued) General (continued) RESISTOR MODULE R2 200 F1 TIP F2 RING R1 200 R10 600 k C ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Applications (continued) General (continued) Table 15. External Components Required Comp. Function F1 Fuse Protector F2 Fuse Protector R dc Feed Protection 1 ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Applications (continued) General (continued) Table 15. External Components Required (continued) Comp. Function C Battery Noise Cancellation CBN2 5 ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Applications (continued) Resistor Module The L8574 requires certain external resistors at the Tip and Ring interface. Because of matching and protection requirements, ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Applications (continued) Resistor Module (continued RING PR RGBN R 1 ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Applications (continued) Resistor Module (continued) Resistors R —R set the gain of the SLIC in the 3 6 transmit (2-wire to 4-wire) ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Applications (continued) Protection (continued) sense inputs, TS and RS, are protected with diodes to battery (V ) and ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Applications (continued) On-Hook Transmission During the on-hook transmission and talk/on-hook transmission states, the L8574 provides 750 A dc bias current out of ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Applications (continued) Thermal Shutdown If the silicon temperature rises above a nominal 145 C, the L8574 will enter ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications dc Characteristics (continued) V-I Characteristics (continued) In longer loops, the L8574 will operate in the linear region of operation, and in short ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 ac Design (continued) Codec Features and Selection Summary (continued) Third-Generation Codecs This class of devices includes the gains, ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications ac Design (continued) Design Equations (continued) RESISTOR MODULE 100 k 200 k 200 ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 ac Design (continued) Design Equations (continued) Using the circuit of Figure 12, the ratio of capacitors C and ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications ac Design (continued) Design Equations (continued practical design example, design the interface for the following set of requirements ...

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Data Sheet L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Application Diagram RESISTOR NETWORK 200 F1 TIP F2 RING 200 0. 0.01 F 19.6 k ...

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L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Long Loop and TR-57 Applications Outline Diagram 44-Pin PLCC Dimensions are in millimeters. PIN #1 IDENTIFIER 17.65 MAX 16.66 MAX ZONE 1 ...

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... Relay, and Protector (SRP) for Long Loop and TR-57 Applications October 1998 Ordering Information Device Part No. LUCL8574DP-D Resistive SLIC, Ring Relay, and Protector for Long Loop and TR-57 Applications LUCL8574DP-DT Resistive SLIC, Ring Relay, and Protector for Long Loop and TR-57 Applications Lucent Technologies Inc. Description (Tape and Reel, Dry-bagged) Package Comcode ...

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For additional information, contact your Microelectronics Group Account Manager or the following: INTERNET: http://www.lucent.com/micro E-MAIL: docmaster@micro.lucent.com N. AMERICA: Microelectronics Group, Lucent Technologies Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18103 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA ...