CPC5610 Datasheet, PDF (6/18 Pages) Clare, Inc. – LITELINK™ II Silicon Data Access Arrangement (DAA) IC

CPC5610/CPC5611
2. Application Circuits
LITELINK can be used with telephone networks world-
wide. Some public telephone networks, notably in
North America and Japan require resistive line temri-
nation. Other telephone networks in Europe and else-
where require reactive line termination.
The application circuits below address both line termi-
nation models. The reactive termination application
circuit (see Section 2.2 on page 8) describes a TBR-21
implementation. This circuit can be adapted easily for
other reactive termination needs. Worldwide applica-
tion of LITELINK is described more fully in Clare appli-
cation note AN-147, Worldwide Application of LITELINK.
2.1 Resistive Termination Application Circuit
Figure 3. Resistive Termination Application Circuit Schematic
3.3 or 5 V
R23²
10
C1
1
C16
FB1
10
600 Ω
200 mA ^A
A
1
R1 (R_TX) 80.6K 1% 2
TX-
C13 0.1 3
TX+
C2 0.1 4
5
C3 0.1
6
7
OH
RING
CID
RX-
RX+
8
9
10
C14 0.1 11
12
C4 0.1
13
14
15
16
VDD
TXSM
TX-
TX+
TX
REFM
GND
OH
RING
CID
RX-
RX+
SNP+
SNP-
RXF
RX
R2
(R_RXF)
127K
A
1%
U1
LITELINK
C9
0.1
REFL
TXF
ZTX
ZNT
TXSL
BR1-
NTS
GAT
REFB
DCS1
DCS2
ZDC
BR2-
RPB
RXS
VDDL
-BR
R5 (R_TXF)
32
42.2K
31
1%
C10
0.01
500V
30
29
R13
28
(R_NTS)
1M
27
1%
Q1
CPC5602C
26
25
24
23
R12 (R_NTF) 1M 1%
R14
(R_GAT)
47
22
21 ^{R15 (R}DCS2^{) 1.69M 1%}
20
R16 (R_ZDC) 8.2 1%
R20
19
(R_VDDL)
18
-BR
2
17
R4
(R_PB)
68.1
1%
-BR
R8 (R_HTX)
200K 1%
R9 (R_HNT)
200K 1%
C18³
15 pF
R18
(R_ZTX)
150
1%
-BR
R10
(R_ZNT)
301
1%
-BR
C15
0.01
500V
-BR
DB1
+
SIZB60
600V_60A
-
-BR
R22 (R_DCS1A)
6.8 M 1%
R21 (R_DCS1B)
6.2 M 1%
C12 (C_DCS)
0.027
-BR
SP1¹
P3100SB 1
2
TIP
RING
NOTE: Unless otherwise
noted, all resistors are in
Ohms, 5%. All capacitors
are in microFarads.
C7
(C_SNP-)
220pF
2000V
R3
(R_SNPD)
1.5M
1%
R6 (R_SNP-2)
1.8M 1/10W 1%
R44 (R_SNP-1)
1.8M 1/10W 1%
C8
R7 (R_SNP+2)
(C_SNP+) 1.8M 1/10W 1%
220pF
2000V
1_{This design was tested and found to comply with FCC Part 68 with this}
part. Other compliance requirements may require a different part.
2_{Higher-noise power supplies may require substitution of a 220 µH inductor,}
Toko 380HB-2215 or similar. See the Power Quality section of Clare applica-
tion note AN-146, Guidelines for Effective LITELINK Designs for more informa-
tion.
3_{Optional for enhanced trans-hybrid loss, see “Trans-Hybrid Loss” on page 16.}
R45 (R_SNP+1)
1.8M 1/10W 1%
6
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Rev. 9.0