le5712 Zarlink Semiconductor, le5712 Datasheet - Page 17

• Manufacturer Part Number: le5712
• Description: Dual Subscriber Line Interface Circuit
• Manufacturer: Zarlink Semiconductor

VBREF
RING
RING
DAC
BAT
TIP
TIP
DB
DB
1
1
1
2
2
2
22 nF
22 nF
D
C
C
VBH
BD2
BD1
22 nF
22 nF
C
C
AD2
AD1
1600
1600
R
R
TMG1
0.33 µF
TMG2
C
100 nF
100 nF
CAS
C
C
HP1
HP2
HP
BD
DB
AD
HP
BD
TMG
VBAT
TMG
VBREF
CAS
DAC
DB
AD
Figure 7. Le5712 Test Circuit
2
2
2
1
1
1
1
2
1
2
BGND
Zarlink Semiconductor Inc.
Le5712x
1
BGND
CH1
17
CH2
2
+ 5 V
VCC
V
CC
/DGND
AGND
CDC
CDC
RSN
RSN
DET
DET
VTX
VTX
IREF
FLT
FLT
C1
C2
C3
C2
C3
C1
RD
1
1
1
1
1
1
1
2
2
2
2
2
2
2
1
2
R
R
330 nF
330 nF
T1
T2
C
C
DC2
DC1
R
100 k
100 k
16.5 k
D
16.5 k
150 k
150 k
R
R
RX1
RX2
R
VTX
VTX
REF
012403
C1
C2
C3
DET
VRX
VRX
FLT
VM
VM
DET
C2
C1
FLT
C3
1
1
1
1
2
2
2
2
1
2
1
1
1
2
2
2