LUCL9217AAR-D AGERE [Agere Systems], LUCL9217AAR-D Datasheet
LUCL9217AAR-D
Related parts for LUCL9217AAR-D
LUCL9217AAR-D Summary of contents
Page 1
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Features Basic forward/reverse battery SLIC functionality at a low cost Pin compatible with Agere Systems Inc. L9218/ L9219 SLIC Low active power (typical 154 mW during on-hook transmission) Low-power scan mode ...
Page 2
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Contents Features ......................................................................1 Description...................................................................1 Pin Information ............................................................4 Functional Description .................................................6 Absolute Maximum Ratings ( ................7 Recommended Operating Conditions .........................7 Electrical Characteristics .............................................8 Ring Trip Requirements ..........................................12 Test ...
Page 3
Data Sheet November 2001 Description (continued LOOP CLOSURE DETECTOR LCTH RTSP RING TRIP DETECTOR RTSN Agere Systems Inc. L9217A/G Low-Cost Line Interface POWER CONDITIONING AND REFERENCE FORWARD AND REVERSE BATTERY RECTIFIER + AX – V/A AAC ...
Page 4
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Pin Information RCVP RCVN LCTH DCOUT V BAT PR CF2 Table 1. Pin Descriptions PLCC Symbol Type Current-Limit Program Input. A resistor to DCOUT sets the dc current ...
Page 5
Data Sheet November 2001 Pin Information (continued) Table 1. Pin Descriptions (continued) PLCC Symbol Type 7 LCTH I Loop Closure Threshold Input. Connect a resistor to DCOUT to set off-hook threshold. 8 DCOUT O dc Output Voltage. This output is ...
Page 6
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Functional Description Table 2. Input State Coding Powerup, Forward Battery, Normal Overhead. Normal talk and battery feed state. Pin PT is positive with respect to ...
Page 7
Data Sheet November 2001 Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso- lute stress ratings only. Functional operation of the device is not implied at these or ...
Page 8
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Electrical Characteristics Minimum and maximum values are testing requirements in the temperature range of 25 ° °C and battery range of – –70 V. These minimum and ...
Page 9
Data Sheet November 2001 Electrical Characteristics Table 5. 2-Wire Port Parameter Tip or Ring Drive Current = dc + Longitudinal + Signal Currents Signal Current Longitudinal Current Capability per Wire 2 dc Loop Current Limit : Allowed Range Including Tolerance ...
Page 10
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Electrical Characteristics Table 6. Analog Pin Characteristics Parameter Differential PT/PR Current Sense (DCOUT): Gain (PT/PR to DCOUT) Offset Voltage LOOP Loop Closure Detector Threshold (R On- to ...
Page 11
Data Sheet November 2001 Electrical Characteristics Table 8. ac Feed Characteristics Parameter 1 ac Termination Impedance Longitudinal Impedance at PT/PR Total Harmonic Distortion—200 kHz Off-hook On-hook Transmit Gain kHz (PT/PR to VITR) (current limit) ...
Page 12
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Electrical Characteristics Table 9. Logic Inputs and Outputs All outputs are open collectors with internal method to power up in the disconnect state. Parameter Input Voltages: Low Level (permissible ...
Page 13
Data Sheet November 2001 Test Configurations TIP R LOOP 100 /600 RING 43.2 k 22.1 k 402 274 k V BAT BAT 100 4 BAT V CC TIP + BASIC TEST ...
Page 14
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Test Configurations (continued) 100 F TIP 368 V M 368 – RING 100 F LONGITUDINAL BALANCE = 20 log Figure 7. Longitudinal Balance 0.01 F 82.5 600 6, ...
Page 15
Data Sheet November 2001 Applications A basic loop start reference circuit, using bused ringing with the L9217 SLIC and the T7504 first-generation codec, is shown in Figure 11. This circuit is designed for a 900 brid. Transmit gain is set ...
Page 16
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Applications (continued) Table 11. Parts List for Loop Start Application Circuit Using T7504-Type Codec Name Integrated Circuits SLIC L9217 Protector Agere L7591 Ringing Relay Agere L7581/2/3 or EMR Codec T7504 Overvoltage ...
Page 17
Data Sheet November 2001 Applications (continued) A basic loop start reference circuit, using bused ringing with the L9217 SLIC and the T8536 third-generation codec, is shown in Figure 12 PROG PROG R ...
Page 18
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Applications (continued) Table 12. Parts List for Loop Start Application Circuit Using T8536-Type Codec Name Integrated Circuits SLIC L9217 Protector Agere L7591 Ringing Relay Agere L7581/2/3 or EMR Codec T8536 Overvoltage ...
Page 19
Data Sheet November 2001 Applications (continued) dc Applications Battery Feed The dc feed characteristic can be described by: V – -------------------------------------------- - – ...
Page 20
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Applications (continued) dc Applications (continued) Rate of Battery Reversal The rate of battery reversal is controlled or ramped by capacitors FB1 and FB2. A chart showing FB1/FB2 val- ues versus typical ...
Page 21
Data Sheet November 2001 Applications (continued) dc Applications (continued) Ring Trip Detection The ring trip circuit is a comparator that has a special input section optimized for this application. The equivalent circuit is shown in Figure 15, along with its ...
Page 22
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Applications (continued) Periodic Pulse Metering (PPM) Periodic pulse metering (PPM), also referred to as TTX, is input to the PPMIN input of the L9217. Upon application of appropriate logic control, this ...
Page 23
Data Sheet November 2001 Applications (continued) ac Design Codec Types At this point in the design, the codec needs to be selected. The interface network between the SLIC and codec can then be designed. There are four key ac design ...
Page 24
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Applications (continued) ac Design (continued) Receive Interface (continued) With a third-generation codec, the line card designer has different concerns. To design the ac interface, the designer must first decide upon all ...
Page 25
Data Sheet November 2001 Applications (continued) ac Design (continued) Example 1: Real Termination (First-Generation Codec) (continued) The following design equations refer to the circuit in Figure 16. Use these to synthesize real termination imped- ance. Termination Impedance ...
Page 26
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Applications (continued) ac Design (continued) Example 2: Complex Termination (First-Generation Codec) Below are design equations for complex termination (see Figure 17 and Figure 18). 7.86 1 ----------- - ---------------------------------- - R ...
Page 27
Data Sheet November 2001 Applications (continued) ac Design (continued) Example 2: Complex Termination (First-Generation Codec) (continued TGS TGS R = 8.06 k TGP –I –I T/R T/R 201.2 AX RCVN R CVN RCVP R CVP Figure 17. Interface ...
Page 28
L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Applications (continued) Power Derating Operating temperature range, maximum current limit, maximum battery voltage, minimum dc loop, and pro- tection resistor values will influence the overall thermal performance. This section shows the ...
Page 29
Data Sheet November 2001 Outline Diagram 28-Pin PLCC Dimensions are in millimeters. PIN #1 IDENTIFIER ZONE Agere Systems Inc. 12.446 0.127 11.506 0.076 0.51 MIN 1.27 TYP TYP 0.330/0.533 L9217A/G Low-Cost Line Interface ...
Page 30
... L9217A/G Low-Cost Line Interface with Reverse Battery and PPM Ordering Information Device LUCL9217AAR-DT LUCL9217AAR-D LUCL9217GAR-DT LUCL9217GAR-D IEEE is a registered trademark of The Institute of Electrical and Electronics Engineers, Inc registered trademark of Hewlett-Packard Company. For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www ...