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AM79D2251VC Datasheet(PDF) 12 Page - Advanced Micro Devices

Part # AM79D2251VC
Description  Dual Intelligent Subscriber Line Audio-Processing Circuit (ISLAC)
PDF  35 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79D2251VC Datasheet(HTML) 12 Page - Advanced Micro Devices

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12
Am79D2251
Figure 5. External Ringing Linecard Schematic
RFAi
RFBi
RSAi
RSBi
RRXi
A
B
DHi
BATH
BATL
U1
Am79231
P1
P2
P3
LD
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 is optional - Should be put if there is a chance that
this chip may be replaced by Am79R251.
DLi
RMGLi
RMGPi
RMTi
VREF
RLGi
VREF
RHLai
BATH
CS
45
8
1
2
U5
6
7
RTESTMi
DT1i
RTESTLi
RSRBi
RSRC
RGFDLi
Ring Bus
KRi
KRi(A)
CADi
CBDi
CHPi
CSSi
U2
ISLAC
VREF
VILGi
VIMTi
VLBi
VSABi
VINi
VHLi
VOUTi
BACK
PLANE
LDi
P1
P2
P3
DGND
AGND
VCCA
VCCD
RSHB
RSLB
SHB
SLB
BATH
BATL
RREF
IREF
XSBi
XSC
VCC
+3.3 VDC
+5 V
KRi
SPB
RSVD
CREF
3.3 V
RTi
(B)
DT2i***
RHLbi
RHLci
RHLdi
VREF
CHLdi
CHLbi
SA
SB
AD
BD
VBH
VBL
TMP
TMN
TMS
BGND
R2H
RYE
R3H
R1
HPA
HPB
RSVD2



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