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AM79D2251JC Datasheet(PDF) 11 Page - Advanced Micro Devices |
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AM79D2251JC Datasheet(HTML) 11 Page - Advanced Micro Devices |
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11 / 35 page  Am79D2251 11 Figure 4. Internal Ringing Linecard Schematic RFAi RFBi RSAi RSBi A B U3 DHi BATH BATL U1 Am79R241 P1 P2 P3 LD SA SB AD BD VBH VBL TMP TMN RSN VLB IMT ILG VTX VREF VSAB GND +5 V VCC CBATLi CBATHi * CSS required for > 2.2 Vrms metering ** Connections shown for one channel *** DT2i diode is optional - should be connected if there is a chance that this chip may be replaced by Am79R251. DLi RMGLi RMGPi TMS BGND R2 RYE R3 R1 BATH HPA HPB RTESTLi CHPi CSSi RRXi RMTi VREF RLGi VREF U2 ISLAC VREF VILGi VIMTi VLBi VSABi VINi VOUTi BACK PLANE LDi P1 P2 P3 DGND VCCA VCCD SHB SLB BATH BATL IREF AGND VCC +3.3VDC RSHB RSLB RREF CREF 3.3 V CADi CBDi RSVD RSVD RTi D1 D2 U4 CS RTESTMi DT1i DT2i*** SPB RHLai VHLi RHLbi RHLci RHLdi VREF CHLdi CHLbi |
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