AM79R79-4JC Advanced Micro Devices, AM79R79-4JC Datasheet
AM79R79-4JC
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AM79R79-4JC Summary of contents
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... Am79R79 Ringing Subscriber Line Interface Circuit DISTINCTIVE CHARACTERISTICS I Ideal for short-loop applications I Ideal for ISDN terminal adaptor and fixed radio access applications I On-chip ringing with on-chip ring-trip detector I Low standby state power I Battery operation: — –40 –75 V BAT1 — – ...
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... SLIC automatically switches to a higher voltage in the on-hook (standby) state. Like all of the AMD SLIC devices, the Am79R79 Ringing SLIC device supports on-hook transmission, ring-trip detection, programmable loop-detect threshold, and is available with on-chip polarity reversal. The Am79R79 ...
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... Longitudinal Balance, Polarity Reversal – Longitudinal Balance, Polarity Reversal – Longitudinal Balance, No Polarity Reversal – Longitudinal Balance, No Polarity Reversal DEVICE NUMBER/DESCRIPTION Am79R79 Ringing Subscriber Line Interface Circuit Valid Combinations Valid Combinations list configurations planned to be supported in volume for this device. Consult ...
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... DET Notes: 1. Pin 1 is marked for orientation connect 4 32-Pin PLCC Am79R79 Data Sheet RTRIP1 RTRIP2 HPB HPA RINGIN RDCR VTX VNEG RSN ...
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PIN DESCRIPTIONS Pin Names Type AGND/DGND Gnd Analog and Digital ground A(TIP) Output Output of A(TIP) power amplifier B2EN Input VBAT2 Enable. Logic Low enables operation from V from V BGND Gnd Battery (power) ground B(RING) Output Output of B(RING) ...
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... BAT1 functionality of the device is guaranteed. – + Functionality of the device from 0°C to +70°C is guaranteed by production testing. Performance from –40°C to +85°C is guaranteed by characterization and periodic sampling of production units. BAT1 + 0 Am79R79 Data Sheet BAT2 BAT1 ...
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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 Overload level, 2-wire THD (Total Harmonic ...
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... Open Circuit state Standby state OHT state Active state–normal Open Circuit state Standby state OHT state Active state–normal Open Circuit state Standby state OHT state Active state–normal Am79R79 Data Sheet Min Typ Max Unit Note I 1.085I ...
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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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... Table 1. SLIC Decoding (DET) Output 2-Wire Status Ring trip Ring trip Loop detector Loop detector Loop detector Loop detector Loop detector Loop detector on-hook battery must be used. BAT1 Am79R79 Data Sheet = 600 Ω – NEG L = 1.2 µ 1N400x 1.5 µ 100 kΩ ...
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Table 2. User-Programmable Components ( ) Z = 500 Z – 2WIN F • Z 1000 • ----------- - ------------------------------------------------- - 500 42L T ...
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... V APPH = ------------------------------------------------------------------------------ - ( ) DC1 DC2 -------------------------------------- + LOOP 600 Am79R79 Data Sheet 4) V ASH 1) Constant-Current Region 2) V ASL resistor to GND, B2EN = logic Low. SGL = resistor B2EN = logic Low. CC must be greater than 100 kΩ resistor to GND, B2EN = logic High. SGH = resistor B2EN = logic High. ...
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RING-TRIP COMPONENTS kΩ RT2 1.5 µ • • 320 CF ------------------------------------------------------------------------------------------------------------------------------------ - RT1 ( 24 µA 320 CF • Vbat 5 – – where R = Loop-detection threshold resistance for ring trip ...
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... R L AGND B(RING) RSN / V ) BRS = 20 log (V RX A(TIP) VTX R L SLIC AGND B(RING) RSN S2 Closed, S1 Open / V ) 4-L Long. Sig. Gen log ( Longitudinal Balance Am79R79 Data Sheet ...
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TEST CIRCUITS (continued The desired impedance; D e.g., the characteristic impedance of the line V CC A(TIP) = 600 Ω B(RING) E. Loop-Detector Switching HF GEN 50 Ω 1.5 Vrms 80% Amplitude ...
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... DCR RYOUT1 RDCR 2.0 kΩ RYOUT2 RYE B2EN C1 C2 VBAT1 VBAT2 E1 DET BGND RINGIN AGND/ DGND H. Am79R79 Test Circuit Am79R79 Data Sheet – SGH open R SGL open 300 kΩ Note: R DC1 Refer to Applications Circuit for 20 kΩ ...
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APPLICATION CIRCUIT R R RT2 kΩ 515 kΩ 1.5 µ 2 Ω TIP K1 K1 Bat1 G A TISP C A 61089 RING = 50 ...
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... DC2 V BAT1 ( 15 µA 300 CF • • • ( – 150 + LRT V BAT1 ( 24 µA 320 CF • • • ( – – 150 + LRT Am79R79 Data Sheet .400 REF. .490 .530 .013 .021 16-038FPO-5 PL 032 DA79 SIDE VIEW 6-28-94 ae • 150 + 2R LRT • ...
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... AMD’s product could create a situation where personal injury, death, or severe property or environmental damage may occur. AMD reserves the right to discon- tinue or make changes to its products at any time without notice. © 1999 Advanced Micro Devices, Inc. All rights reserved. Am79R79 Data Sheet ...