am79m574 ETC-unknow, am79m574 Datasheet
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am79m574
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am79m574 Summary of contents
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... Two-Wire Interface HPB B(RING VREG L VBAT BGND Notes: 1. Am79M574—E0 and E1 inputs; ring and test relay drivers sourced internally to BGND. 2. Current gain ( 1000. 1 Supports 2.2 Vrms metering (12 and 16 kHz) On-chip switching regulator for low-power dissipation Two-wire impedance set by single external impedance ...
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... Valid Combinations list configurations planned to be supported in volume for this device. Consult JC the local Legerity sales office to confirm availabil- ity of specific valid combinations, to check on newly released combinations, and to obtain addi- tional data on Legerity’s standard military grade products. Am79M574 Data Sheet ...
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CONNECTION DIAGRAM Top View TP TESTOUT VBAT QBAT CHS CHCLK C4 E1 Notes: 1. Pin 1 is marked for orientation thermal conduction pin tied to substrate (QBAT connect ...
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... Regulated Voltage. Provides negative power supply for power amplifiers, connection point for inductor, filter capacitor, and chopper stabilization. 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 RDC Am79M574 Data Sheet is negative for normal polarity and ...
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ABSOLUTE MAXIMUM RATINGS Storage temperature . . . . . . . . . . . . –55 ° +150 ° with respect to AGND/DGND . . .–0 +7 with respect ...
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... Am79M574 Data Sheet Min Typ Max Unit Ω 3 –35 +35 –30 +30 mV –40 +40 –35 + Ω ...
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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, 0 dBm, 1 kHz, –40°C to +85°C 0 dBm, 1 kHz, 0 dBm, 1 kHz, –40°C to +85°C Variation with ...
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... Bias current Offset voltage Source resistance MΩ 8 Test Conditions (See Note 1) –1* –1* – mVrms) –1* –1* –1* –1* –1* –1* = 365/R Nominal D Am79M574 Data Sheet Min Typ Max Unit 35 120 35 80 135 250 135 200 mW 200 400 200 300 ...
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ELECTRICAL CHARACTERISTICS (continued) Description Logic Inputs (C4–C1, E0, E1, and CHCLK) Input High voltage Input Low voltage Input High current All inputs except E1 Input High current Input E1 Input Low current Logic Output (DET) Output Low voltage I OUT ...
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... Switchhook Detect state –40°C to +85°C = 600 Ω open L G (See Figure G) 0°C to +70°C –40°C to +85°C 0°C to +70°C –40°C to +85°C tshde tgkde tshd0 Am79M574 Data Sheet Min Typ Max Unit Note 3.8 4.0 1.1 1.6 1.1 1.6 3.8 4.0 µ ...
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Notes: 1. Unless otherwise noted, test conditions are BAT = – 0.1 µ kΩ, C DC1 DC2 306 kΩ resistive, receive input summing impedance (Z T component ...
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... L 2-wire output (usually 2.2 Vrms) and ω -------------------------------------------------------------------------------------------------------------- - where The values of the identical capacitors ω = Am79M574 Data Sheet , and Z is the desired 2-wire AC input F 2WIN , the internal current amplifier T to the RSN pin defined the desired receive gain. 42L form the network connected to the ...
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DC FEED CHARACTERISTICS 47.3 V BAT kΩ DC Notes: 1. Constant-resistance region Anti-sat–1 turn-on Anti-sat–2 turn-on Open Circuit voltage ...
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... DC FEED CHARACTERISTICS (continued 47.3 V BAT kΩ Feed resistance programmed Loop Current vs. Load Resistance (Typical RSN SLIC B RDC and R DC1 c. Feed Programming Figure 1. DC Feed Characteristics Am79M574 Data Sheet R DC1 DC2 16857C-004 DC2 ...
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TEST CIRCUITS VTX A(TIP SLIC AGND RSN B(RING –20 log ( L2 Two- to Four-Wire Insertion Loss A(TIP) VTX 1/ωC << ...
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... C E. Single-Frequency Noise A(TIP) B(RING kΩ Ground-Key Switching 16 1/ωC << 90 Ω A(TIP) S SLIC B(RING) = 600 Ω Loop-Detector Switching Am79M574 Data Sheet R L A(TIP B(RING Current Feed and Ground Key F. Ground-Key Detection V CC 6.2 kΩ A(TIP) DET ...
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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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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 re- spect to the accuracy or completeness of the contents of this publication and reserves the right to make changes ...
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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 ...