am79r251 Advanced Micro Devices, am79r251 Datasheet - Page 12

• Manufacturer Part Number: am79r251
• Description: Intelligent Subscriber Line Interface Circuit Islic
• Manufacturer: Advanced Micro Devices

Figure 4.
12
KRi
Ring Bus
DT1i
B
(B)
A
RGFDLi
RTESTMi
RSBi
BATH
RSAi
External Ringing Linecard Schematic
RFAi
RFBi
DT2i
BATP
BATH
CS1
BATL
U3
U4
RTESTLi
CBATHi
CBATPi
KRi(A)
DHi
DLi
KRi
CS2
U5
U6
+5V
RMGPi
RMGLi
BATP
CBATLi
CHPi
CADi
CBDi
CSSi
* CSS required for > 2.2 VRMS metering
** Connections shown for one channel
VBP
RYE
R2H
R3H
R1
BGND
TMS
TMN
HPA
HPB
TMP
VBH
VBL
SA
AD
BD
SB
+5 V
VCC
Am79R251
U1
Am79R251
CREF
RSRBi
3.3 V
RSRC
VREF
RSVD
VSAB
GND
VTX
RSN
VLB
IMT
LD
P1
P2
P3
ILG
RMTi
RLGi
VREF
VREF
CHLbi
RTi
RHLci
RHLai
RRXi
VREF
RHLbi
RHLdi
CHLdi
VOUTi
VHLi
VSABi
VINi
VLBi
VIMTi
VILGi
VREF
LDi
P1
P2
P3
XSBi
ISLAC
U2
DGND
AGND
VCCA
VCCD
IREF
SHB
SPB
SLB
XSC
PLANE
RSHB
RSPB
RSLB
BACK
RREF
BATP
BATL
BATH
VCC
+3.3 VDC