am79m576a Advanced Micro Devices, am79m576a Datasheet
am79m576a
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am79m576a Summary of contents
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... Am79M576A Metering Subscriber Line Interface Circuit DISTINCTIVE CHARACTERISTICS Programmable constant-resistance feed Programmable loop-detect threshold Ground-key detect Performs polarity reversal Ring relay driver Supports 2.2 Vrms metering (12 and 16 kHz) Line feed characteristics independent of battery variations BLOCK DIAGRAM A(TIP) HPA Two-Wire HPB Interface B(RING) ...
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... Valid Combinations Valid Combinations list configurations planned to be supported in volume for this device. Consult JC the local AMD sales office to confirm availability of specific valid combinations, to check on newly released combinations, and to obtain additional data on AMD’s standard military grade products. Am79M576A Data Sheet ...
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CONNECTION DIAGRAM Top View TP VCCRING L VBAT QBAT CHS CHCLK RSVD E1 Notes: 1. Pin 1 is marked for orientation thermal conduction pin tied to substrate. 3. RSVD = Reserved. Do not connect to this ...
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... VTX Output Transmit Audio. This output is 0.510 times the A(TIP) and B(RING) metallic voltage.The other end of the two-wire input impedance programming network connects here. 4 Description is negative for normal polarity and positive RDC Am79M576A Data Sheet ...
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ABSOLUTE MAXIMUM RATINGS Storage temperature ......................... – +150 C Ambient temperature, operating ........... – + with respect to AGND ................. –0 +7 with respect to AGND ................. +0.4 V ...
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... 139.5 k TMG +70 C – + +70 C – + +70 C – + +70 C – + +70 C – +85 C Am79M576A Data Sheet Min Typ Max Unit 3 20 –40 +40 –35 +35 mV –45 +45 20 ...
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ELECTRICAL CHARACTERISTICS (continued) Description Total Harmonic Distortion (2- to 4-Wire 2-Wire) without Metering (See Test Circuits A and B) 0 dBm 300 Hz to 3.4 kHz +9 dBm Total Harmonic Distortion with metering Idle Channel Noise without ...
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... Zener On voltage 30 mA Note: C3–C1, and E0 have an internal pull up. E1 has an internal pull down. 8 Min = 50 mVrms, Saturation Guard Inactive 365/R –15 D 2.0 –5 –50 2.0 –75 –75 –0 –0.1 mA 2.4 6.0 Am79M576A Data Sheet Typ Max Unit Note 2 4.0 5 7.0 6 9.0 1.0 2.0 2.3 4.0 2.3 4.5 mA 0.4 1.0 2.2 3.5 3.2 5.0 15 ...
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RELAY DRIVER SCHEMATIC SWITCHING CHARACTERISTICS Symbol Parameter E1 Low to DET High ( tgkde E1 Low to DET Low ( tgkdd E0 High to DET Low ( tgkd0 E0 Low to DET High (E1 ...
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... This specification assumes that the two-wire AC load impedance and metallic impedance of 300 BAT series resistors connected between A(TIP) and B(RING APPARENT ------------------------------------------- - R DC Am79M576A Data Sheet tshde tgkdd tgkd0 used for powering the MSLIC. CC used for powering the MSLIC, you must – 300 k resistive. RX for frequencies < ...
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Total Harmonic distortion with metering is specified with a metering signal of 2.2 Vrms at the two-wire output, and a transmit signal of +3 dBm or receive signal of –4 dBm. The transmit or receive signals are single-frequency inputs, ...
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... L 49. 0.8975 V – 6.835 AB BAT , V = 0.7915 V – 0.113 AB BAT 0.7915 V – 0.113 – I ---------- - AB BAT L 815 1724 I = ----------- - – Voltage vs. Loop Current (Typical Am79M576A Data Sheet 1 5 Active state OHT state V 62.8 V BAT V 62.8 V BAT ...
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DC FEED CHARACTERISTICS (continued 47.3 V BAT Loop Current vs. Load Resistance (Typical Feed current programmed by R Figure 1. DC Feed Characteristics A RSN SLIC ...
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... POWER, Watts 1 1250 Figure 2. Active State Total Power Dissipation (Typical) 14 Am79M576APC – Power @ V = –48 V BAT 2500 Line Resistance ( Am79M576A Data Sheet 3750 5000 ...
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TEST CIRCUITS A(TIP) VTX SLIC AGND RSN B(RING –20 log ( L2 Two- to Four-Wire Insertion Loss 1 << R VTX A(TIP) ...
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... A(TIP) 56 IDC 68 C B(RING << Single Frequency Noise V CC A(TIP 600 L B(RING) G. Loop-Detector Switching SLIC 6.2 k DET Am79M576A Data Sheet R L A(TIP B(RING Current Feed E or Ground Key F. Ground-Key Detection A(TIP) B(RING Ground-Key Switching ...
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PHYSICAL DIMENSION PL032 .485 .495 .447 .453 .585 Pin 1 I.D. .595 .547 .553 .026 .032 TOP VIEW REVISION SUMMARY Revision A to Revision B • Minor changes were made to the data sheet style and format to conform to ...
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... The contents of this document are provided in connection with Advanced Micro Devices, Inc. ("AMD") products. AMD makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to speci- fications and product descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any in- tellectual property rights is granted by this publication. Except as set forth in AMD’ ...