am79231 ETC-unknow, am79231 Datasheet
am79231
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am79231 Summary of contents
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... Intelligent Access ä Voice Solutions Am79231 Intelligent Subscriber Line Interface Circuit (ISLIC DISTINCTIVE CHARACTERISTICS Monitor of two-wire interface voltages and currents supports — Voice transmission — Programmable DC feed characteristics — Independent of battery — Current limited — Selectable off-hook and ground-key thresholds — Subscriber line diagnostics — ...
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... Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Environmental Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Electrical Maximum Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Target Specifications (See note Relay Driver Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Am79231 Transmission Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Am79231 Current-Limit Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Am79231 Fault Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Thermal-Management Equations (All Modes except Standby Timing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 PL032 ...
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... This enables the design of a low cost, high performance, fully software programmable line interface for multiple country applications worldwide. All AC, DC, and signaling parameters are fully programmable via microprocessor or GCI interfaces on the ISLAC device. Additionally, the Am79231 device has integrated self-test and line-test capabilities to resolve faults to the line or line circuit. The integrated test capability is crucial for remote applications where dedicated test hardware is not cost effective ...
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... LD1 VREF 7 LD2 AGND1 AGND2 7 LD3 P1- LD4 RREF Ring-Trip 5 Sense Resistors RSHB BATH RSLB BATL Am79231 Data Sheet 4 VCCA VCCD DGND1 DGND2 4 IO1-IO4 TSCA/G TSCB DRA/DD Quad DRB ISLAC DXB Am79Q2243 DXA/DU DCLK/S0 PCLK/FS MCLK FS/DCL CS/RST DIO/S1 INT ...
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... Power amplifiers positive supply BGND A Amplifier + - + - VREF + - - + B Amplifier To Power Amplifiers Decoder RD1 RD2 RD3 Control Register Demux Am79231 Data Sheet RSN + VTX + β = 0.01 VSAB - VREF VREF VREF Gain/Level Shift VLB Thermal Shutdown IMT 600 600 IA IB − ILG 600 600 ...
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... TEMPERATURE RANGE C = Commercial (0°C to +70°C)* PACKAGE TYPE J = 32-pin plastic leaded chip carrier (PL032) DEVICE NAME/DESCRIPTION Am79231(Intelligent Subscriber Line Interface Circuit) Valid combinations list configurations planned supported in volume for this device. Consult the local Legerity sales office to confirm availability of specific valid combinations, and to check on newly released valid combinations ...
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... CONNECTION DIAGRAM RYE TMS TMP TMN Am79231 9 32-Pin PLCC Am79231 Data Sheet IMT 27 26 ILG 25 CREF RSVD 24 HPB 23 HPA 22 21 VTX 7 ...
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... I Sets the DC longitudinal voltage of the Am79231 the reference for the longitudinal control loop. When the VLB pin is greater than VREF, the Am79231 sets the longitudinal voltage to a voltage approximately half-way between the positive and negative power supply battery rails. When the VLB pin is driven to levels between 0V and VREF, the longitudinal voltage decreases linearly with the voltage on the VLB pin ...
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... GENERAL DESCRIPTION The Intelligent Access ä voice chipsets integrate all functions of the subscriber line. Two chip types are used to implement the linecard; an Am79231 device and an ISLAC device. These provide the following basic functions: 1. The Am79231: A high voltage, bipolar device that drives the subscriber line, maintains longitudinal balance and senses line conditions ...
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... PCM voice channel. Both longitudinal and metallic resistance and capacitance can be mea- sured, which allows leakage resistance, line capacitance, and telephones to be identified. 10 Am79231 Data Sheet ...
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... INTELLIGENT ACCESS™ VOICE CHIPSETS LINECARD WITH AM79231 Figure 3. External Ringing Linecard Schematic RSAi RFAi KRi( BATH CS RFBi RSBi KRi ( RMGPi DT2i *** RMGLi DHi BATH DLi BATL CBATHi CBATLi RGFDLi KRi +5 V Ring Bus +5 V 3.3 V ...
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... V Ceramic 100 nF 20% 100 V Protector speed–up capacitor 100 V Ceramic 510 Ω 1.2 W typ 750 kΩ 2% 1/4 W Matched to within 0.2% for initial tolerance and typ 5 V Coil DPDT Am79231 Data Sheet Comments ° ambient temperature range. ...
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... On-Hook Standby VBH VBL VCC On-Hook Transmission VBH Fixed Longitudinal Voltage VBL VCC On-Hook Active High Battery VBH VBL VCC Off-Hook Active Low Battery VBH RL = 294 Ω VBL VCC Am79231 Data Sheet Min Typ Max Unit 50 65 145 mW 270 620 200 0.5 0.1 mA 3.1 0. ...
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... Thermal Resistance The junction to air thermal resistance of the Am79231 in a 32-pin, PLCC package is 45°C/W. The typical junction to case thermal resistance is 14°C/W. Measured under free air convection conditions and without external heatsinking. Absolute Maximum Ratings Storage temperature Ambient temperature, under bias ...
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... VBH – 13. µA RSN 8. µA 19.8 130 Standby mode 600 Ω 44 VBH Ground 43 CREF – 1 2.0 –50 0.0088 TBD 275 560 -3 -1 Am79231 Data Sheet Typ Max Unit Note V 3 VBH–7 VBH–6 51 55.5 15 16.13 10.8 12.96 22 250 375 Ω µA ...
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... Zener Break Over Zener On Voltage Figure 4. Relay Driver Configuration R2 BGND Figure 4A. Ring Relay Driver 16 Condition Min Typ 25 mA/relay sink 0.4 40 mA/ relay sink 0.8 R2,R3 = BGND 0 RYE = VBH Iz = 100 µA 6.6 7 RYE BGND R1 BGND Am79231 Data Sheet Max Unit Note 0 1.0 3 100 µ ...
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... 3400 kHz 50 to 3400 kHz Active mode 20 Freq = 12 kHz 2.8 Vrms Freq = 16 kHz 40 metering load = 200 Ω Am79231 Data Sheet Typ Max Unit Note 1 3 Ω 135 Ω –13.98 –13.83 – ...
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... This parameter is tested at 1 kHz in production. Performance at other frequencies is guaranteed by characterization. 5. When the Am79231 and ISLAC device is in the anti-sat operating region, this parameter is degraded. The exact degradation depends on system design. 6. –55 dBm gain tracking level not tested in production. This parameter is guaranteed by characterization and correlation to other tests. 7. This spec is valid from VBL or – ...
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... RD1, RD2 and RD3. These are latched into the first three bits in the Am79231 control register. When the LD pin is more than 0.3 V above VREF (> (VREF + 0 P1–P3 must contain ISLIC control data C1, C2, and C3, which are latched into the last three bits of the Am79231 control register. Connecting the LD pin to VREF locks the contents of the Am79231 control register. ...
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... Disconnect This mode disconnects both A and B output amplifiers from the AD and BD outputs. The A and B amplifiers are shut down and the Am79231 selects the low battery voltage at the VBL pin. In the Disconnect state, the currents on IMT and ILG represent the voltages on the SA and SB pins, respectively. These currents are scaled to produce voltages across ...
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... LD signal. 2. After a power-on reset or hardware reset, the relay outputs from the Am79231 turn all relays off. An unassuming state is to place the relay control pins, which are level triggered reset state for all relays. ...
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... WAVEFORMS VCC VREF LD 0V Previous Relay Data P1,P2,P3 VREF tr SLD LD VREF t SDXSU P1,P2,P3 22 Relay Data State Data DETAIL A tf SLD t SLDPW t SDXHD Am79231 Data Sheet Write State Register Lock Registers Write Relay Register New Relay Data Write State Register Write Relay Register ...
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... Page 12, Linecard Parts List, Rows CHLbi and CHLdi: switched the numbers in the “Values” column. .009 .015 .125 .140 .080 .095 SEATING PLANE .013 .021 .050 REF. Am79231 Data Sheet .042 .056 .400 REF. .490 .530 16-038FPO-5 PL 032 DA79 SIDE VIEW 6-28- ...
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Notes: www.legerity.com ...
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Notes: www.legerity.com ...
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Legerity provides silicon solutions that enhance the performance, speeds time-to-market, and lowers the system cost of our customers' products. By combining process, design, systems architecture, and a complete set of software and hardware support tools with unparalleled factory and worldwide ...
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The contents of this document are provided in connection with Legerity, Inc. products. Legerity 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 ...
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P.O. Box 18200 Austin, Texas 78760-8200 Telephone: (512) 228-5400 Fax: (512) 228-5510 North America Toll Free: (800) 432-4009 To contact the Legerity Sales Office nearest you download or order product literature, visit our website at www.legerity.com. To order ...