Le79228
Data Sheet
APPLICATION CIRCUITS
Figure 19. Internal Ringing Line Schematic
+3.3 V
VCC
CVCC
+3.3 V
RSAi
RRXi
CVCCD
SA
AD
RSN
VOUTi
VCCD
RFAi**
RHLai
A
See VHL Networks
for network selection
CADi
VHLi
RHLdi
CHLdi
RHLci
2
U3i**
3
2
U4i**
3
1
4
6
7
6
7
1
4
VREF
RVCCA
BATH
BATP
VCCA
RTi
CVCCA
VINi
RTESTi
*
VTX
CVTXi
CSSi
*
DGND
AGND
VSAB
VSABi
VLBi
RFBi**
BD
SB
B
CBDi
VLB
IMT
RSBi
VIMTi
GS1i
U1
Le79252
RMT1i
U2
Le79Q2284
VREF
RMT2i
*
VBF
ILG
VILGi
CVBFi
BACK
PLANE
GS2i
RLG1i
VREF
VBP
VBH
BATP
BATH
RLG2i
*
CVBP
DVBH
VREF
VRN
VREF
CVRNi
CVBH
VREF
RVBH
*
BATP
SPB
LD
LDi
P1
RSPB
BATL
VBLi
AGND
CVBL
P1
P2
P3
BATL
VBH
SLB
SHB
RPMGi
RSLB
PMG
P2
P3
BATL
RSHB
IREF
RREFS
RREF
TLD
RREFSi
NOTE:
Connections are shown for one channel.
BGND
XSBi
XSC
* Optional components.
** Consult Legerity for an optimized protection recommendation.
28
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
