AM79574JC Advanced Micro Devices, AM79574JC Datasheet

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Am79574 Subscriber Line Interface Circuit DISTINCTIVE CHARACTERISTICS Programmable constant resistance feed Line-feed characteristics independent of battery variations Programmable loop-detect threshold On-chip switching regulator for low-power dissipation Pin for external ground-key noise filter capacitor available BLOCK DIAGRAM A (TIP) HPA Two-Wire ...

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ORDERING INFORMATION Standard Products AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed by a combination of the elements below. Am79574 Valid Combinations –1 Am79574 –2 Note: * Functionality of the ...

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CONNECTION DIAGRAM Top View TESTOUT VBAT QBAT CHS CHCLK Notes: 1. Pin 1 is marked for orientation thermal conduction pin tied to substrate (QBAT ...

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PIN DESCRIPTIONS Pin Names Type AGND Gnd Analog (quiet) ground A(TIP) Output Output of A(TIP) power amplifier BGND Gnd Battery (power) ground B(RING) Output Output of B(RING) power amplifier C3–C1 Input Decoder. TTL compatible MSB and C1 is ...

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ABSOLUTE MAXIMUM RATINGS Storage temperature ......................... – +150 C V with respect to AGND/DGND...... –0 +7 with respect to AGND/DGND ...... +0 –7 with respect to AGND/DGND ..... ...

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ELECTRICAL CHARACTERISTICS Description Analog (V ) output impedance TX Analog (V ) output offset – +85 C Analog (RSN) input impedance Longitudinal impedance 300 Hz to 3.4 kHz ...

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ELECTRICAL CHARACTERISTICS (continued) Description Balance Return Signal (4- to 4-Wire, See Test Circuit B) Gain accuracy 0 dBm, 1 kHz + dBm, 1 kHz, – + dBm, 1 kHz ...

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ELECTRICAL CHARACTERISTICS (continued) Description Power Dissipation, BAT = –48 V, Normal Polarity On-hook Open Circuit state On-hook OHT state On-hook Active state Off-hook OHT state R L Off-hook Active state R L Supply Currents V on-hook supply current Open Circuit ...

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ELECTRICAL CHARACTERISTICS (continued) Description Logic Output (DET) Output Low voltage I OUT Output High voltage I OUT Relay Driver Outputs (RINGOUT, TESTOUT) On voltage 50 mA source Off leakage Clamp voltage 50 mA sink RELAY DRIVER SCHEMATICS BGND Q BAT ...

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SWITCHING WAVEFORMS E1 to DET* E1* DET* tgkde E0 to DET E1* E0 DET tshdd Notes internally connected to a logical 0. 1. All delays measured at 1.4 V level. Notes: 1. Unless otherwise noted, test conditions ...

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Assumes the following Z network: T VTX 300 k 300 12. Tested with 0 source impedance specified for system design purposes only. 13. Group delay can be considerably reduced by using a Z ...

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DC FEED CHARACTERISTICS –47.3 V BAT Notes: 1. Constant-resistance feed region: 2. Anti-sat –1 turn-on: 3. Anti-sat –2 turn-on: 4. Open circuit voltage: 5. Anti-sat –1 region: 6. Anti-sat –2 ...

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DC FEED CHARACTERISTICS (continued –47.3 V BAT Loop Current vs. Load Resistance (Typical RSN SLIC RDC B Feed resistance programmed by R DC1 c. Feed ...

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TEST CIRCUITS VTX A(TIP SLIC AGND RSN B(RING –20 log ( L2 Two- to Four-Wire Insertion Loss VTX A(TIP << R ...

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TEST CIRCUITS (continued IDC << Single-Frequency Noise V CC A(TIP 600 L B(RING) G. Loop-Detector Switching A(TIP) S SLIC B(RING) 6.2 k DET SLIC Products ...

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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 B to Revision C • 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’ ...