AM79R70-1SC AMD [Advanced Micro Devices], AM79R70-1SC Datasheet
AM79R70-1SC
Related parts for AM79R70-1SC
AM79R70-1SC Summary of contents
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... Am79R70 Ringing Subscriber Line Interface Circuit DISTINCTIVE CHARACTERISTICS I Ideal for ISDN-TA and set top applications I On-chip ringing with on-chip ring-trip detector I Low standby state power I Battery operation: — – –67 V BAT1 — – BAT2 BAT1 I On-chip battery switching and feed selection ...
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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 Am79R70 Ring- ing SLIC device supports on-hook transmission, ring- trip detection and programmable loop-detect threshold. ...
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... J = 32-pin Plastic Leaded Chip Carrier (PL 032 28-pin Small Outline Integrated Circuit (SOW 028) POLARITY REVERSAL OPTION Blank = No Polarity Reversal –1 = Polarity Reversal DEVICE NUMBER/DESCRIPTION Am79R70 Subscriber Line Interface Circuit Valid Combinations Valid Combinations list configurations planned to be supported in volume for this device. Consult JC ...
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... VBAT2 VCC DET BGND RSGH 7 22 B(RING) RSGL A(TIP RDC AGND RTRIP1 RTRIP2 RSN 17 12 HPB VNEG 16 HPA 13 VTX 15 14 RINGIN RDCR Am79R70 Data Sheet RTRIP1 29 RTRIP2 28 HPB 27 HPA 26 RINGIN 25 RDCR 24 VTX 23 VNEG 22 RSN 21 ...
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PIN DESCRIPTIONS Pin Names Type AGND/DGND Gnd Analog and digital ground are connected internally to a single pin. A(TIP) Output Output of A(TIP) power amplifier. B2EN Input V BAT2 V . TTL compatible. BAT1 BGND Gnd Battery (power) ground B(RING) ...
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... BAT1 – The Operating Ranges define those limits between which the BAT1 functionality of the device is guaranteed. – + Functionality of the device from 0°C to +70°C is guaranteed by production testing. BAT1 + 0 C/W typ Am79R70 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 Active state Overload level, 2-wire THD ...
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... BAT2 L 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 Am79R70 Data Sheet Min Typ Max Unit Note 0. ...
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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 Am79R70 Data Sheet = 600 Ω – NEG L = 1.2 µ 1N400x 1.5 µ 150 kΩ ...
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Table 2. User-Programmable Components ( ) Z = 500 Z – 2WIN F • Z 1000 • ----------- - ------------------------------------------------- - 500 42L T ...
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... DC1 DC2 -------------------------------------- + LOOP 600 Am79R70 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 • • ------------------------------------------------------------------------------------------------------------------------------------ - R = 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 Am79R70 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) Ω 600 L B(RING) E. Loop-Detector Switching HF GEN 50 Ω 1.5 Vrms 80% Amplitude ...
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... RDC R DCR RYOUT1 RDCR 2.0 kΩ RYOUT2 RYE B2EN C1 C2 VBAT1 VBAT2 E1 DET BGND RINGIN AGND/ DGND H. Am79R70 Test Circuit Am79R70 Data Sheet – SGH open R SGL open 300 kΩ DC2 20 kΩ C 1.2 µ SLEW 100 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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... SEATING PLANE .013 .021 .050 REF. 15 .453 .500 14 .080 .100 .002 .014 0.045 MIN. Am79R70 Data Sheet .042 .056 .400 REF. .490 .530 16-038FPO-5 PL 032 DA79 SIDE VIEW 6-28-94 ae 0° 8° .016 .050 .006 .0125 16-038-SO28-2_AC ...
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REVISION SUMMARY Revision A to Revision B • Minor changes were made to the data sheet style and format to conform to AMD standards. Revision B to Revision C • The 28-pin SOIC information and package was added to the ...
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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 ...