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AM79M535-2JC датащи(PDF) 1 Page - Advanced Micro Devices |
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AM79M535-2JC датащи(HTML) 1 Page - Advanced Micro Devices |
1 / 18 page Publication# 16856 Rev: E Amendment: /0 Issue Date: October 1999 Am79M535 Metering Subscriber Line Interface Circuit DISTINCTIVE CHARACTERISTICS s Programmable constant-current feed s Line-feed characteristics independent of battery variations s Programmable loop-detect threshold s On-chip switching regulator for low-power dissipation s Pin for external ground-key noise filter capacitor available s Ground-key detect s Two-wire impedance set by single external impedance s Performs polarity reversal s Tip Open state for ground-start lines s Supports 2.2 Vrms metering (12 and 16 kHz) s On-hook transmission BLOCK DIAGRAM C1 C2 C3 E1 E0 Ring Relay Driver RINGOUT Off-Hook Detector Signal Transmission Ground-Key Detector GKFIL Power-Feed Controller Ring-Trip Detector Switching Regulator Two-Wire Interface VTX RD RDC A(TIP) HPA HPB B(RING) DA DB L DET RSN Input Decoder and Control VREG VBAT BGND 16856B-001 CHS CHCLK AGND QBAT VEE VCC Notes: 1. Am79M535—E0 and E1 inputs; ring relay driver sourced internally to BGND; ground-key filter pin. 2. Current gain (K1) = 1000. |
Аналогичный номер детали - AM79M535-2JC |
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Аналогичное описание - AM79M535-2JC |
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