LUCL9312AP-D AGERE [Agere Systems], LUCL9312AP-D Datasheet

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L9312 Line Interface and Line Access Circuit Forward Battery SLIC and Ringing Relay for TR-57 Applications Introduction The Agere Systems Inc. L9312 is a combination full- feature, ultralow-power SLIC, and solid-state ringing access relay part of a pin-for-pin ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Contents Introduction..................................................................1 Features ....................................................................1 SLIC .......................................................................1 Solid-State Relay....................................................1 Applications...............................................................1 Description ................................................................1 Features ......................................................................4 Description...................................................................4 Architecture .................................................................7 Pin Information ............................................................8 Operating States........................................................10 Input State Coding ..................................................10 State Definitions ........................................................11 Primary Control Modes ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Figures Figure 1. Architecture Diagram................................... 7 Figure 2. 44-Pin PLCC ............................................... 8 Figure 3. Timing Requirements ................................ 18 Figure 4. On-State Switch I-V Characteristics .......... 20 Figure 5. Basic ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Features SLIC and solid-state ring relay integrated into a sin- gle package 5 V and battery operation User-defined power control options: — Automatic battery switch — Power control resistor — Package ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Description (continued) The switch point is a function of the user-programmed dc current limit and the magnitude of the auxiliary bat- tery. Switching from the high-voltage to low-voltage battery ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Description (continued) Data control is via a parallel latched data control scheme. Data latches are edge-level sensitive. Data is latched in when the LATCH control input goes low. While LATCH is ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Description (continued) A receive gain more appropriate when choosing a third-generation type codec. Third-generation codecs will synthesize termination impedance, set hybrid bal- ance, and set overall ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Pin Information NC NC LCF BGND RPWR V BAT1 V BAT1 BGND TIE B TIE A NC Table 1. Pin Descriptions Pin Symbol Type 1 LCTH I Loop Closure Program Input. ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Pin Information (continued) Table 1. Pin Descriptions (continued) Pin Symbol Type 9 LCF — Loop Closure Filter Capacitor. PPM injection can cause false loop closure indication. Connect a capacitor ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Pin Information (continued) Table 1. Pin Descriptions (continued) Pin Symbol Type 37 ITR I Transmit Gain. A current output which is proportional to the differential current flow- ing from tip to ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 State Definitions Primary Control Modes Powerup, Forward Battery Normal talk and battery feed state. Pin PT is positive with respect to pin PR. All ac transmission and dc feed ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications State Definitions (continued) Special States (continued) Battery Out of Range Not controlled via truth table inputs. This mode is caused by a battery out of range; that is, the battery voltage ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Electrical Characteristics In general, minimum and maximum values are testing requirements. However, some parameters may not be tested in production because they are guaranteed by design and device characterization. ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Electrical Characteristics Ring Trip Detector Table 5. Ring Trip Detector Parameter Voltage at Input that will Cause Ring Trip After Appropriate Zero Crossings Voltage at Input that will Cause Immediate Ring ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Electrical Characteristics SLIC Two-Wire Port Table 6. SLIC Two-Wire Port Parameter PT and PR Drive Current = dc + Longitudinal + Signal Currents Signal Current Longitudinal Current Capability per ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Electrical Characteristics Analog Pin Characteristics Table 7. Analog Pin Characteristics Parameter TXP (input impedance) V Input Bias Current* (current flow out of pin) PROG LCTH Input Bias Current* (+ current flows ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Electrical Characteristics ac Feed Characteristics Table 8. ac Feed Characteristics Parameter 1 ac Termination Impedance Total Harmonic Distortion (200 Hz—4 kHz) Off-hook On-hook 3 Transmit Gain f = 1004 ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Electrical Characteristics Logic Inputs and Outputs, V Table 9. Logic Inputs and Outputs Parameter Input Voltages: Low Level High Level Input Current: Low Level ( 0.4 ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Electrical Characteristics Switch Characteristics Table 11. Break Switches (SW1, 2) Parameter Off State: Maximum Differential Voltage dc Leakage Current (Vsw = ±320 V) On State (see On-State I-V Switch ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Electrical Characteristics Switch Characteristics (continued) Table 13. Ringing Access Switch (SW4) Parameter Off State: Maximum Differential Voltage dc Leakage Current (Vsw = ±475 V) (pole to pole) Isolation On State (see ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Test Configurations TRING TRING RRING RING RSW RSW RTS RTS RING LOOP 100 600 50 TIP PT OVH V V PROG PROG LCTH LCTH V V ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Test Configurations (continued) V BAT 100 V S 4.7 µ BAT BASIC 900 V T/R TEST CIRCUIT – --------- - PSRR = 20 ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Applications dc Characteristics Power Control Under normal device operating conditions, thermal design must ensure that the device temperature does not rise above the thermal shutdown. Power dissipation is highest ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Applications (continued) dc Characteristics (continued) Automatic Battery Switch (continued) The equation governing the switch point is as follows: V 3.0 – BAT2 R = – 2R – R ----------------------------------- LOOP P ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Applications (continued) dc Characteristics (continued) Power Control Resistor (continued) Again assume: T – allowed thermal rise TSD AMBIENT(max) 150 C – Allowed ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Applications (continued) dc Characteristics (continued) dc Loop Current Limit In the active modes, dc current limit is programmable via an applied voltage source at the device’s V control input. The voltage ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Applications (continued) dc Characteristics (continued) Battery Feed (continued) As illustrated in Figure 12, as loop length decreases, the tip to ground voltage will decrease with a slope cor- responding ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Supervision (continued) Ring Trip Ring trip is set by the value of RS1. The ring trip threshold at the ring trip inputs is ±2.5 V minimum, ±3.5 V maximum. A resistor ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Supervision (continued) Break-Before-Make Operation To achieve break-before-make, use the logic control sequence device switching as shown below. Table 15. Break-Before-Make Logic Control Sequence Device Switching Break State Switches Switches ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications Protection (continued) Active Mode Response at PT/PR For a lower-voltage power cross, whose maximum peak voltage is below the foldback voltage breakpoint 1 (V1), the current-limited break switch will pass the ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 Protection (continued) Ring Mode Response at PT/PR For power cross for lower-voltage faults, the ring return switch will behave like the line break switches. How- ever, tip return switch ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications ac Applications ac Parameters There are four key ac design parameters. Termination impedance is the impedance looking into the 2-wire port of the line card set to match the ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 ac Applications (continued) ac Interface Network (continued) With a first-generation codec, the termination imped- ance is set by providing gain shaping through a feed- back network from the SLIC ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications ac Applications (continued) First-Generation Codec ac Interface Net- work: Resistive Termination The following reference circuit shows the complete SLIC schematic for interface to the Agere T7504 first- generation codec for a ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 ac Applications (continued) First-Generation Codec ac Interface Network: Resistive Termination Example 1, Real Termination The following design equations refer to the circuit in Figure 14. Use these to synthesize ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications ac Applications (continued) First-Generation Codec ac Interface Network: Resistive Termination Example 1, Real Termination (continued) V BAT1 C VBAT1 0 BAT2 BAT1 PWR T RING V BAT ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 ac Applications (continued) First-Generation Codec ac Interface Network: Resistive Termination Example 1, Real Termination (continued) Table 16. L9312 Parts List for Agere T7504 First-Generation Codec Resistive Termination, Single Battery ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications ac Applications (continued) Third-Generation Codec ac Interface Network: Complex Termination The following reference circuit shows the complete SLIC schematic for interface to the Agere T8536 third-genera- tion. All ac parameters are ...

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Forward Battery SLIC and Ringing Relay for TR-57 Applications July 2001 ac Applications (continued) Third-Generation Codec ac Interface Network: Complex Termination Table 17. L9312 Parts List for Agere T8536 Third-Generation Codec, Dual Battery Operation, ac and dc Parameters, Fully Programmable ...

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... Outline Diagram PIN #1 IDENTIFIER Ordering Information Device Part Number LUCL9312AP-D LUCL9312AP-DT LUCL9312GP-D LUCL9312GP-DT For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: docmaster@micro.lucent.com N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA PACIFIC: Agere Systems Singapore Pte ...