CPC5622 Clare, CPC5622 Datasheet - Page 8

• Manufacturer Part Number: CPC5622
• Description: LITELINK III, Full-wave Ring Detect
• Manufacturer: Clare

CPC5622
2.2 Reactive Termination Application Circuit
Figure 4. Reactive Termination Application Circuit Schematic
¹This design was tested and found to comply with FCC Part 68 with this
Sidactor. Other compliance requirements may require a different part.
²Higher-noise power supplies may require substitution of a 220 µH inductor,
Toko 380HB-2215 or similar. See the Power Quality section of Clare
application note AN-146,
more information.
3
page
recommendations for the CPC5602C FET.
4
8
RING2
RING
R
Use voltage ratings based on the isolation requirements of your application.
10µ
C16
RX-
RX+
TX +
TX -
ZDC
OH
3.3 or 5V
13. Also see Clare application note AN-146 for heat sinking
A
sets the loop-current limit, see
R23
10
200 mA
600 Ω
FB1
2
C14
C13
C4
C2
A
80.6K
(R
R1
TX
C1
1µ
A
0.1µ
0.1µ
0.1µ
0.1µ
)
13
14
10
11
12
15
16
Guidelines for Effective LITELINK Designs
1
2
3
4
5
6
7
8
9
(R
130K
R2
VDD
TXSM
TX-
TX+
TX
GND
RING
RX-
RX+
SNP+
SNP-
RXF
RX
RXF
MODE
OH
RING2
)
LITELINK
“Setting a Current Limit” on
U1
(R
R3
1.5M
SNPD
(C
220p
(C
220p
C8
SNP+
VDDL
C7
SNP-
REFL
TXSL
DCS1
DCS2
)
NTS
ZDC
RPB
RXS
TXF
ZTX
ZNT
GAT
NTF
BR-
BR-
)
)
4
4
17
32
31
26
23
21
20
19
18
30
29
28
27
25
24
22
BR-
0.1µ
C9
(R
R4
68.1
(R
(R
PB
1.8M
1.8M
(R
60.4K
200K
R76
R5
SNP-2
SNP+2
R6
R7
(R
(R
)
1.69M
TXF
221K
BR-
R16
R12
8.2
(C
0.68µ
NTF
R15
DCS2
BR-
C20
)
(R
ZNT
)
)
)
(R
HTF
www.clare.com
)
200K
)
R8
ZDC
for
(R
110K
R75
)
NTX
)
(R
BR-
3
HTX
BR-
BR-
R10
)
59
)
169
R11
C21
100p
(R
(C
ZNT1
(R
(R
(R
1M
R13
GAT
0.01µ
500V
C10
1.8M
1.8M
(R
SNP-1
SNP+1
NTS
R44
R45
ZNT2
)
)
)
BR-
)
)
)
BR-
(R
(R
R21
6.49M
R22
6.49M
(C
(R
C12
0.027µ
10K
R18
DCS1B
DCS1A
DCS
ZTX
)
)
)
)
Resistor values are in Ohms
All resistors are 1%.
Capacitor values are in Farads.
NOTE: Unless otherwise noted:
(R
R14
5%
47
GAT
)
CPC5602C
Q1
(R
2
5%
R20
VDDL
)
BR-
-
+
BR-
DB1
0.01µ
500V
C15
Rev. 1.0
SP1
RING
TIP
1