參數(shù)資料
型號(hào): LE79R251JC
英文描述: Telecommunication IC
中文描述: 通信集成電路
文件頁(yè)數(shù): 18/22頁(yè)
文件大?。?/td> 533K
代理商: LE79R251JC
P R E L I M I N A R Y
18
Le79R251 ISLIC Data Sheet
APPLICATION CIRCUIT
Internal Ringing Line Card Schematic
Note:
1.
CSS required for > 2.2 VRMS metering.
2.
Connections are shown for one channel.
RFAi
RFBi
RSAi
RSBi
A
B
DHi
BATH
BATL
U1
Am79R251
P1
P2
P3
LD
SA
SB
AD
BD
VBH
VBL
TMP
TMN
RSN
VLB
IMT
ILG
VTX
VREF
VSAB
GND
+5V
VCC
DLi
RMGLi
RMGPi
TMS
BGND
R2
RYE
R3
R1
HPA
HPB
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
3.3V
CADi
CBDi
RSVD
RTi
CS1
U3
BATH
U4
U5
BATP
U6
SBP
BATP
RSPB
CBATLi
CBATHi
CBATPi
VBP
BATP
CS2
DT2i
RHLai
VHLi
RHLbi
RHLci
RHLdi
CHLdi
VREF
CHLbi
RTEST
DT1i
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