AM79R70JC Advanced Micro Devices, AM79R70JC Datasheet
AM79R70JC
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AM79R70JC Summary of contents
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... HPB B(RING) VBAT2 VBAT1 This document contains information on a product under development at Advanced Micro Devices. The information is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed product without notice. Programmable constant-current feed Programmable Open Circuit voltage ...
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GENERAL DESCRIPTION The AMD family of subscriber line interface circuit (SLIC) products provide the telephone interface func- tions required throughout the worldwide market. AMD SLIC devices address all major telephony markets in- cluding central office (CO), private branch exchange (PBX), ...
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ORDERING INFORMATION Standard Products AMD standard products are available in several packages and operating ranges. The order number (Valid Combi- nation) is formed by a combination of the elements below Am79R70 Valid Combinations Am79R70 Note: * Functionality of the device ...
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CONNECTION DIAGRAM Top View RYE RYOUT1 B2EN VBAT1 DET Notes: 1. Pin 1 is marked for orientation connect 32-Pin PLCC ...
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PIN DESCRIPTIONS Pin Names Type AGND/DGND Gnd A(TIP) Output B2EN Input BGND Gnd B(RING) Output C3–C1 Inputs D1 Input D2 Input DET Output E1 Input HPA Capacitor HPB Capacitor RD Resistor RDC Resistor RDCR — RINGIN Input RSGH Input RSGL ...
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ABSOLUTE MAXIMUM RATINGS Storage temperature ......................... –55°C to +150°C V with respect to AGND/DGND .......... 0 with respect to AGND/DGND ...... 0 NEG V ....................................................V BAT2 V with respect to AGND/DGND: ...
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ELECTRICAL CHARACTERISTICS Description Transmission Performance 2-wire return loss Z , analog output impedance VTX V , analog output offset voltage VTX Z , analog input impedance RSN Overload level, 2-wire and 4-wire, off hook Active state Overload level, 2-wire THD ...
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ELECTRICAL CHARACTERISTICS (CONTINUED) Description Line Characteristics I , Loop-current accuracy Long loops, Active state Accuracy, Standby state L I LIM Loop current, Open Circuit state Pin A leakage, ...
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ELECTRICAL CHARACTERISTICS (continued) Description Logic Inputs (C3–C1, D2–D1, E1, and B2EN Input High voltage Input Low voltage Input High current Input Low current IL Logic Output DET V , ...
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Notes: 1. Unless otherwise noted, test conditions are BAT1 = –67 V, BAT2 = – fuse resistors, C DC1 DC2 D two-wire ...
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Table 2. User-Programmable Components Z = 500 Z – 2WIN F Z 1000 ----------- - ------------------------------------------------- - 500 42L 2500 -------------- - R ...
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DC FEED CHARACTERISTICS APPH (Volts APPL 10 0 Figure 1. Typical DC1 DC2 V = – 67 ...
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RING-TRIP COMPONENTS RT2 ----------------------------------------------------------------------------------------------------------------------------------------- - R = 300 CF RT1 Vbat 3.5 – – 300 CF where R = Loop-detection threshold resistance for ring trip and CF = Crest ...
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TEST CIRCUITS log (V L4 Four- to Two-Wire Insertion Loss and Four- to Four-Wire Balance Return Signal 1 << Open, S1 Closed L-T Long. Bal. ...
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TEST CIRCUITS (continued The desired impedance; D e.g., the characteristic impedance of the line V CC A(TIP 600 L B(RING) E. Loop-Detector Switching HF GEN 50 1.5 Vrms 80% Amplitude Modulated 100 ...
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TEST CIRCUITS (continued RT2 430 k 1.5 µ 2.2 nF A(TIP B(RING 2 BAT1 0.1 µ BAT2 0.1 µF Note: The input should ...
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... Copyright 1998 Advanced Micro Devices, All rights reserved. AMD, the AMD logo and combinations thereof are trademarks of Advanced Micro Devices, Inc. DSLAC and QSLAC are trademarks of Advanced Micro Devices, Inc. Product names used in this publication are for identification purposes only and may be trademarks of their respective companies. ...