CPC5621-EVAL-RDL/CPC5621-EVAL-CDL
LITELINK™ III Evaluation Board
User’s Guide
1. Introduction
Thank you for using this Clare LITELINK III evaluation
board. LITELINK III evaluation boards ship with
CPC5621 full-wave ring detection LITELINK III parts
and in one of two configurations; resistive AC termination circuit (CPC5621-EVAL-RDL) or reactive AC termination circuit (CPC5621-EVAL-CDL).
NOTE: The printed-circuit board used for LITELINK III
evaluation boards is a multi-purpose board. It includes
many stuff options and circuits not used when manufactured as a LITELINK III evaluation board. For more
information, see Stuffing Options on page 2.
1.1 Component Locations
Figure 3. Primary (Top) Side Components
Figure 1. LITELINK III Evaluation Board, Primary
(Top) View
1.
2.
3.
4.
Figure 2. LITELINK III Evaluation Board, Secondary (Bottom) View
CPC5602C FET
Bridge Rectifier
Snoop Capacitors
CODEC area (not stuffed for evaluation board)
Figure 4. Secondary (Bottom) Side Components
Use the three-letter code on the label on the printedcircuit board to determine the AC termination you
have.
5. FET Heatsink
6. LITELINK
7. Sidactor Circuit Protector
• CDL = reactive AC termination
• RDL = resistive AC termination
UG-CPC5621-EVAL-RDL/CPC5621-EVAL-CDL-R2.0
www.clare.com
1
LITELINK III Evaluation Board Users Guide
2. Setup
3. Using the Evaluation Board
This section describes setting up the LITELINK III
evaluation board prior to use.
Follow these guidelines for productive use of the
LITELINK evaluation board:
2.1 Connection
• Make all connections to the board before applying
power.
• LITELINK III evaluation board circuit components
are sensitive to electro-static discharge (ESD). Use
normal ESD precautions when working with the
LITELINK III evaluation board.
The LITELINK III evaluation board uses two 0.1 inch
(2.54 mm) pin headers for input and output connections, J1 and J2. Clare recommends you construct
header jumpers to bring the connections out to your
circuit in development
Table 1: Connector J1 Connections
4. Design Notes
Pin
Silk Screen
Use
1
1
Tip. Connect to telephone network tip
lead.
2
2
Ring. Connect to telephone network
ring lead.
1. The default gain setting at the factory is 0 dB.
2. OH must be de-asserted (set logic high) once at
power-up for 50 ms to transfer internal gain trim
values within LITELINK III. This would be normal
operation in many applications.
Table 2: Connector J2 Connections
5. Worldwide Operation
Pin
Silk Screen
1
PWR IN
Input power for the LITELINK III circuit.
Connect to +5 or +3.3 Vdc
2
CODEC CLK
TX+ input to the LITELINK III.
3
CODEC SIN
TX- input to the LITELINK III.
4
CODEC
SOUT
RX+ output of the LITELINK III.
5
CODEC
SYNC
RX- output of the LITELINK III.
6
RESET
Not used.
7
OH
Off hook. Assert low to take the
LITELINK III circuit off hook.
Select and implement a stuffing option as described
below:
Table 3: Stuffing Options
CID
Caller ID. Assert low to engage the
display signal routing features of
LITELINK III.
8
9
2
RING
Use
LITELINK III evaluation board AC termination characteristics may be changed by changing stuffing options.
See Stuffing Options on page 2, CPC5621-EVALCDL Schematic on page 5, and CPC5621-EVALRDL Schematic on page 6 for more information.
5.1 Stuffing Options
LITELINK III Evaluation Boards can be used to evaluate LITELINK III circuits connected to several types of
host equipment and several types of telephone networks. This flexibility will often require changes to the
components in the circuit.
Option
The output of the LITELINK III ring circuit. See LITELINK datasheets
for more information.
10
911 DET
Loop current detector output.
11
GND
Host side circuit ground
12
AUDIO OUT
Not used.
Resistive
Termination
(North
America),
CPC5621EVAL-RDL
www.clare.com
Place
R14 = 499 kΩ
R17 301 Ω,
R18 = 0 Ω,
R22 = 8.2 Ω,
R23 = 150 Ω,
R24 = 0 Ω,
Do Not Place
C5, C8, C11, R1
Rev. 2.0
LITELINK III Evaluation Board Users Guide
Table 3: Stuffing Options (Continued)
Option
Place
Reactive
Termination
(TBR-21),
CPC5621EVAL-CDL
C8 = 0.68 µF,
C11 = 1.5 µF,
R1 = 0 Ω,
R14 = 221 kΩ,
R17 = 59 Ω,
R18 = 169 Ω,
R22 = 22.1 or 8.2 Ω,
R23 = 29.4 Ω,
R24 = 84.5 Ω
C5
Singleended TX+/
TX- input
C26
C25
Differential
TX+/TXinput
C25
C26
LITELINK
Used With
ADI 1803
Codec (Soft
Modem)
U3, C12, C15, C16,
C18, C19, C22, C23,
Y1, R30, R34, R36,
R38, R40, R42, R43,
R44, R45, R46
R31, R33, R35, R37
Without
Codec
R31, R33, R35, R37
U3, C12, C15, C16,
C18, C19, C22, C23,
Y1, R30, R34, R36,
R38, R40, R42, R43,
R44, R45, R46
For Power
Cross Protection
F1, F2, R26, R27
R28, R29
Without
Power
Cross Protection
R28, R29
F1, F2, R26, R27
3.3 V External Power
Supply
R47
U2, C17, R39
5.0 V External Power
Supply
U2, C17, R39
R47
Rev. 2.0
Do Not Place
www.clare.com
3
LITELINK III Evaluation Board Users Guide
6. Printed Circuit Board Layout
Figure 5. Printed Circuit Board Top Silk-screen
Figure 6. Printed Circuit Board Bottom Silk-screen
4
www.clare.com
Rev. 2.0
Rev. 2.0
R1
0
C1
0.1
UNLESS OTHER
RX+
RX-
CID
RING
OH
GND
TX+
TX-
C4
0.1
www.clare.com
GND
R7
40.2K
R6
1M
3 U9
LMV331
1
R4
1M
GND
C26
0.1
R2
80.6K
GND
C2
0.1
1/16W 1%
SEE NOTE 6
VDD
TXSM
TXTX+
TX
MODE
GNDM
OFH
RING
CID
RXRX+
SNP+
SNPRXF
RXSM
R9
1.5M
1/16W
1%
C5
DNP
R3
130K
1/16W
1%
15
16
9
10
11
12
13
14
4
5
6
7
8
1
2
3
2.) ALL RESISTORS ARE IN OHMS.
-BR
SEE NOTE 5
R8
68.1
1/16W
-BR
C7
220PF
2000V
C6
220PF
2000V
-BR
C3
0.1
DEPOPULATE C26 AND POPULTE C25 FOR DIFFERENTIAL TRANSMIT.
6.) POPULATE C26 AND DEPOPULTE C25 FOR SINGLE ENDED TRANSMIT.
5.) DNP INDICATES DO NOT POPULATE
4.) ALL CAPACITORS ARE RATED AT 16V.
3.) ALL CAPACITORS ARE IN MICROFARADS.
-BR
ZTX
ZNT 29
TXSL 28
BR1- 27
NTS 26
GAT 25
NTF 24
DCS1 23
DCS2 22
ZDC 21
BR2- 20
PB 19
RXSL 18
VDDL 17
32
REFL
31
TXF
30
CPC5620
U1
SEE NOTE 6
1.) ALL RESISTORS ARE RATED AT 1/16W,1%.
WISE SPECIFIED:
4
3.3VA
R5
10K
GND
2
5
0.1
C27
GND
911_DET
C25
0.1
3.3VA
GND
R49
200K
1/16W 1%
1
2
3
4
5
6
7
8
9
10
11
12
3.3V
R50
110K
1%
R10 60.4K
GND
911_DET
TX+
TXRX+
RXNC1
OH
CID
R18
169
1/16W
1%
R15
200K
R17
59
3.3V
RING
J2
-BR
221K 1%
R14
R13
1M
1/16W
1%
1
C8
.68
NC2
FB1
600
200MA
2
1/10W
1%
R12
3.6M
1/10W
1%
R11
3.6M
-BR
500V
10%
C9
.01
-BR
3.3VA
D1
D2
S
C11
DNP
C20
10
6.3V
GND
R23
10K
R20
2.0
1/16W
1%
-BR
C28
100PF
G
Q1
CPC5602C
350V
R24
0 OHM
GND
22.1
R22
1.69M
1%
R21
1/16W
1%
R19
47
-BR
C10
.027
16V
R25
13M
1/4W
1%
C21
C29
2.2NF
500V
10%
1
-BR
4
3
2
DB1
SIZB60
600V_60A
SP1
P3100SB
2
1
0
R29
0
R28
TIP
RING
2
1
J1
LITELINK III Evaluation Board Users Guide
7. Schematic Diagrams
Figure 7. CPC5621-EVAL-CDL Schematic
5
6
www.clare.com
C4
0.1
GND
3
1
R7
40.2K
R6
1M
U9
LMV331
R4
1M
GND
C26
0.1
911_DET
GND
2
5
C27
0.1
GND
C25
0.1
SEE NOTE 6
4
R5
10K
3.3VA
1/16W 1%
R2
80.6K
GND
C2
0.1
-BR
R8
68.1
1/16W
32
REFL
31
TXF
30
ZTX
29
ZNT
28
TXSL
27
BR126
NTS
25
GAT
24
NTF
23
DCS1
22
DCS2
21
ZDC
20
BR219
PB
18
RXSL
17
VDDL
-BR
C7
220PF
2000V
C6
220PF
2000V
-BR
C3
0.1
-BR
R49
200K
1/16W
R50
261K
1%
1%
R10 60.4K
R18
0
C28
100PF
R17
301
C8
DNP
SEE NOTE 7
-BR
1/16W
1%
R15
221K
C100 15PF
499K 1%
R14
R13
1M
1/16W
1%
1.) ALL RESISTORS ARE RATED AT 1/16W,1%.
2.) ALL RESISTORS ARE IN OHMS.
3.) ALL CAPACITORS ARE IN MICROFARADS.
4.) ALL CAPACITORS ARE RATED AT 16V.
5.) DNP INDICATES DO NOT POPULATE
6.) POPULATE C26 AND DEPOPULTE C25 FOR SINGLE ENDED TRANSMIT.
DEPOPULATE C26 AND POPULTE C25 FOR DIFFERENTIAL TRANSMIT.
7.) CAPACITOR C100 IS AN ADDED COMPONENT. THERE ARE NO PADS FOR MOUNTING.
INSTALL C100 PER SCHEMATIC UTILIZING SHORTEST MOUNTING DISTANCE.
R9
1.5M
1/16W
1%
SEE NOTE 5
C5
DNP
R3
130K
1/16W
1%
U1
CPC5621
1
VDD
2
TXSM
3
TX4
TX+
5
TX
6
MODE
7
GNDM
8
OFH
9
RING
10
CID
11
RX12
RX+
13
SNP+
14
SNP15
RXF
16
RXSM
3.3VA
UNLESS OTHERWISE SPECIFIED:
RX+
RX-
CID
RING
OH
GND
R1
DNP
C1
0.1
SEE NOTE 6
TX+
TX-
1/10W
1%
R12
3.6M
1/10W
1%
R11
3.6M
-BR
500V
10%
C9
.01
8.2
R22
1.69M
1%
R21
1/16W
1%
R19
47
R24
0
-BR
1G
2
3
-BR
4
C11
DNP
R23
3.32K
R20
2.0
1/16W
1%
S
D2
D1
Q1
CPC5602C
350V
-BR
C10
.027
16V
R25
13M
1/4W
1%
1
-BR
4
3
2
C29
10NF
500V
10%
DB1
SIZB60
600V
GND
J2
1
2
3
4
5
6
7
8
9
10
11
12
3.3V
NC2
SP1
R29
0
R28
0
RING
P3100SB
GND
911_DET
TX+
TXRX+
RXNC1
OH
CID
3.3V
2
1
1
FB1
600
200MA
C20
10
6.3V
2
GND
2
RING
1 TIP
J1
3.3VA
GND
C21
0.1
LITELINK III Evaluation Board Users Guide
Figure 8. CPC5621-EVAL-RDL Schematic
Rev. 2.0
LITELINK III Evaluation Board Users Guide
8. Part Lists
8.1 CPC5621-EVAL-CDL Part List
Quantity
8
2
1
1
1
1
1
1
1
1
1
1
1
4
1
1
3
2
1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
Rev. 2.0
Reference Designators
Description
C1, C2, C3, C4, C21, C25, C26, C27
C6, C7
C8
C9
C10
C20
C28
C29
DB1
FB1
J1
J2
Q1
R1, R24, R28, R29
R2
R3
R4, R6, R13
R5, R23
R7
R8
R9
R10
R11, R12
R14
R15, R49
R17
R18
R19
R20
R21
R22
R25
R50
SP1
U1
U9
0.1 µF, 16 V, 10%, 0603 Capacitor
220 pF, 2 kV, 10%, 1808 Capacitor
0.68 µF, 10 V, 10%, 0603 Capacitor
0.01 µF, 500 V, 10%, 1206 Capacitor
0.027 µF, 16 V, 10%, 0603 Capacitor
10 µF, 6.3 V, 10%, 3216 Capacitor
100 pF, 16 V, 10%, 0603 Capacitor
0.0022 µF, 500 V, 10%, 1206 Capacitor
Bridge rectifier, 600 V, 0.8 A
Ferrite bead, 200 mA, 600 Ω
Header, 2 circuits, 2.54 mm
Header, 12 circuits, 2.54 mm
FET
0 kΩ, 1/16 W, 1% 0603 Resistor
80.6 kΩ, 1/16 W, 1% 0603 Resistor
130 kΩ, 1/16 W, 1% 0603 Resistor
1 MΩ, 1/16 W, 1% 0603 Resistor
10 kΩ, 1/16 W, 1% 0603 Resistor
40.2 kΩ, 1/16 W, 1% 0603 Resistor
68.1 Ω, 1/16 W, 1% 0603 Resistor
1.5 MΩ, 1/16 W, 1% 0603 Resistor
60.4 kΩ, 1/16 W, 1% 0603 Resistor
3.6 MΩ, 1/10 W, 1% 0805 Resistor
221 kΩ, 1/16 W, 1% 0603 Resistor
200 kΩ, 1/16 W, 1% 0603 Resistor
59 Ω, 1/16 W, 1% 0603 Resistor
169 Ω, 1/16 W, 1% 0603 Resistor
47 Ω, 1/16 W, 1% 0603 Resistor
2 Ω, 1/16 W, 1% 0603 Resistor
1.69 MΩ, 1/16 W, 1% 0603 Resistor
22.1 Ω, 1/16 W, 1% 0603 Resistor
13 MΩ, 1/4 W, 1% 1206 Resistor
110 kΩ, 1/16 W, 1% 0603 Resistor
P3100SB Sidactor, DO-214AA
CPC5621 LITELINK
LMV331 Comparator, SOT23-5
www.clare.com
Supplier
Part Number
Tecate
AVX
CMC016103ZY0603T
1808GA221JAT1A
CMC01684KY0603T
Tecate
12067C103KAT1A
CMC016273KY0603T
Panasonic ECS-T0JY106R
Tecate
CMC016101JN0603T
AVX
12067C222JAT1A
Shindengen SIZB60
Murata
BLM18AG601SN1J
22-03-2021
Molex
22-10-2121
Clare
CPC5602C
RCI-0603-0000F
RCI-0603-8062F
RCI-0603-130F
RCI-0603-1004F
RCI-0603-1002F
RCI-0603-4022F
RCI-0603-68R1F
RCI-0603-1504J
IMS
RCI-0603-6043F
RC-0805-3604F
RCI-0603-2213F
RCI-0603-2003F
RCI-0603-5900F
RCI-0603-1690F
RCI-0603-4700F
AVX
CR10002JT
RCI-0603-1694F
RCI-0603-22R1F
IMS
RCI-1206-1305F
RCI-0603-1103F
Teccor
P3100SB
Clare
CPC5621A
Nat. Semi. LMV331
7
LITELINK III Evaluation Board Users Guide
8.2 CPC5621-EVAL-RDL Part List
Quantity
8
2
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
2
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
8
Reference Designators
Description
C1, C2, C3, C4, C21, C25, C26, C27
C6, C7
C9
C10
C20
C28
C29
C100
DB1
FB1
J1
J2
Q1
R2
R3
R4, R6, R13
R5
R7
R8
R9
R10
R11, R12
R14
R15
R17
R18, R24
R19
R20
R21
R22
R23
R25
R49
R50
SP1
U1
U9
0.1 µF, 16 V, 10%, 0603 Capacitor
220 pF, 2 kV, 10%, 1808 Capacitor
0.01 µF, 500 V, 10%, 1206 Capacitor
0.027 µF, 16 V, 10%, 0603 Capacitor
10 µF, 6.3 V, 10%, 3216 Capacitor
100 pF, 16 V, 10%, 0603 Capacitor
0.0022 µF, 500 V, 10%, 1206 Capacitor
15 pF, 16 V, 10%, 0603 Capacitor
Bridge rectifier, 600 V, 0.8 A
Ferrite bead, 200 mA, 600 Ω
Header, 2 circuits, 2.54 mm
Header, 12 circuits, 2.54 mm
FET
80.6 kΩ, 1/16 W, 1% 0603 Resistor
130 kΩ, 1/16 W, 1% 0603 Resistor
1 MΩ, 1/16 W, 1% 0603 Resistor
10 kΩ, 1/16 W, 1% 0603 Resistor
40.2 kΩ, 1/16 W, 1% 0603 Resistor
68.1 Ω, 1/16 W, 1% 0603 Resistor
1.5 MΩ, 1/16 W, 1% 0603 Resistor
60.4 kΩ, 1/16 W, 1% 0603 Resistor
3.6 MΩ, 1/10 W, 1% 0805 Resistor
499 kΩ, 1/16 W, 1% 0603 Resistor
221 kΩ, 1/16 W, 1% 0603 Resistor
301 Ω, 1/16 W, 1% 0603 Resistor
0Ω
47 Ω, 1/16 W, 1% 0603 Resistor
2 Ω, 1/16 W, 1% 0603 Resistor
1.69 MΩ, 1/16 W, 1% 0603 Resistor
8.2 Ω, 1/16 W, 1% 0603 Resistor
3.32 kΩ, 1/16 W, 1% 0603 Resistor
13 MΩ, 1/4 W, 1% 1206 Resistor
200 kΩ, 1/16 W, 1% 0603 Resistor
261 kΩ, 1/16 W, 1% 0603 Resistor
P3100SB Sidactor, DO-214AA
CPC5621 LITELINK
LMV331 Comparator, SOT23-5
www.clare.com
Supplier
Part Number
Tecate
AVX
CMC016103ZY0603T
1808GA221JAT1A
12067C103KAT1A
Tecate
CMC016273KY0603T
Panasonic ECS-T0JY106R
Tecate
CMC016101JN0603T
AVX
12067C222JAT1A
Tecate
CMC025150JN0603T
Shindengen SIZB60
Murata
BLM18AG601SN1J
22-03-2021
Molex
22-10-2121
Clare
CPC5602C
RCI-0603-8062F
RCI-0603-130F
RCI-0603-1004F
RCI-0603-1002F
RCI-0603-4022F
RCI-0603-68R1F
RCI-0603-1504J
IMS
RCI-0603-6043F
RC-0805-3604F
RCI-0603-4993F
RCI-0603-2213F
RCI-0603-3010F
RCI-0603-4700F
AVX
CR10002JT
RCI-0603-1694F
RCI-0603-8R20F
RCI-0603-3321F
IMS
RCI-1206-1305F
RCI-0603-2003F
RCI-0603-1103F
Teccor
P3100SB
Clare
CPC5621A
Nat. Semi. LMV331
Rev. 2.0
LITELINK III Evaluation Board Users Guide
9. LITELINK Design Resources
9.1 Clare, Inc. Design Resources
The Clare, Inc. web site has a wealth of information
useful for designing with LITELINK, including application notes and reference designs that already meet all
applicable regulatory requirements. LITELINK data
sheets also contains additional application and design
information. See the following links:
Application note AN-107 LOCxx Series - Isolated Amplifier Design Principles
Newton’s Telecom Dictionary, Harry Newton, CMP
Books; ISBN: 1578200695
Photodiode Amplifiers: Op Amp Solutions, Jerald
Graeme, McGraw-Hill Professional Publishing; ISBN:
007024247X
Teccor, Inc. Surge Protection Products
United States Code of Federal Regulations, CFR 47
Part 68.3
Application note AN-114 ITC117P
Application note AN-117 Customize Caller-ID Gain and
Ring Detect Voltage Threshold for CPC5610/11
Application note AN-140, Understanding LITELINK
Application note AN-141, Enhanced Pulse Dialing with
LITELINK
Application note AN-143, Loop Reversal Detection with
LITELINK
Application note AN-147, Worldwide Application of
LITELINK
Application note AN-149, Increased LITELINK II Transmit
Power
Application note AN-150, Ground-start Supervision Circuit Using IAA110
Application Note AN-152, LITELINK II to LITELINK
III Design Conversion
9.2 Third Party Design Resources
The following also contain information useful for DAA
designs. All of the books are available on amazon.com.
Understanding Telephone Electronics, Stephen J. Bigelow, et. al., Butterworth-Heinemann; ISBN:
0750671750
For additional information please visit www.clare.com
Clare, Inc. makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make
changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses or indemnity are expressed or implied. Except as set
forth in Clare’s Standard Terms and Conditions of Sale, Clare, Inc. assumes no liability whatsoever, and disclaims any express or implied warranty relating to its
products, including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any intellectual property right.
The products described in this document are not designed, intended, authorized, or warranted for use as components in systems intended for surgical implant into
the body, or in other applications intended to support or sustain life, or where malfunction of Clare’s product may result in direct physical harm, injury, or death to a
person or severe property or environmental damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice.
Specification: UG-CPC5621-EVAL-RDL/CPC5621-EVAL-CDLR2.0
Copyright © 2002, Clare, Inc.
LITELINK is a trademark of Clare, Inc.
All rights reserved. Printed in USA.
8/20/2002